Is there any manufacturing standard for dust removal skeletons?

The cage dust removal skeleton needs to be evenly distributed with support rings and longitudinal bars, and has sufficient strength and rigidity, can withstand the gas pressure of the dust removal bag in the filtration and ash cleaning situation, and can prevent the damage and deformation caused by bumps and impacts in the normal transportation and equipment process. All the solder joints of the dust removal skeleton are welded robustly and there is no desoldering. False soldering and missing soldering.

The surface of the dust removal skeleton in contact with the dust removal bag is smooth and bright, and there is no welding scar. Bumps and burrs. The tension spring skeleton has a satisfactory number of turns and elasticity, and the interval is evenly spaced after swinging.

The surface of the filter bag skeleton has been treated with anti-corrosion treatment, and electroplating is carried out according to different needs. Spraying or painting, if used at high temperatures, its anti-corrosion exterior treatment meets the needs of the operating temperature.

Dust removal skeleton planning, multi-section. Venturi. Protect the spool. Down-to-the-bottom. Plug-in. Chuck type and other reasonable planning methods.

The surface treatment of the dust removal skeleton is galvanized and sprayed. , anti-corrosion disposal. Surface silicone spraying, etc.

Silicone coatings on the surface are commonly used in dust collector applications for large generator sets. Application of dust removal skeleton products: widely used in metallurgy.

Building materials. Generate electricity. Chemical industry.

Food. waste incinerators and other work.

Material of dust removal skeleton: high-quality low-carbon steel wire. Galvanized steel wire. stainless steel wire, etc. Dust removal skeleton standard, round. Oval. Flattened. Envelope-shaped. Other various skeletons customized according to customer needs.

The dust removal skeleton, also known as the dust bag cage, is an indispensable accessory for the bag filter, which is used as a frame to support the dust removal filter bag, and it can be compatible.

Six, eight, ten, ten.

II.X. Six, ten.

VIII.II. 10. Twenty-four tendons, The role of the dust removal skeleton is very large, and it is widely used in the dust removal industry and the chemical industry and other industrial places.

The production standards of the dust removal skeleton are as follows:

1. The cage dust removal skeleton requires that the support rings and longitudinal bars are evenly distributed, and should have sufficient strength and rigidity to withstand the gas pressure of the filter bag in the state of filtration and ash cleaning, and can prevent damage and deformation caused by collision and impact during normal transportation and installation.

2. All the solder joints of the filter bag skeleton should be welded firmly, and no desoldering is allowed. False soldering and missing soldering.

3. The surface of the filter bag skeleton in contact with the filter bag should be smooth and clean, and no welding scars are allowed. Bumps and burrs.

4. The tension spring skeleton should have enough turns and elasticity, and the spacing should be uniform after opening.

5. The surface of the filter bag skeleton must be treated with anti-corrosion treatment and electroplating according to different needs. Spraying or painting, if used for high temperatures, its anti-corrosion appearance should meet the requirements of the use temperature.

6. The verticality of the dust bag cage is 6m plus or minus 1mm.

7. The dust bag cage has two or three sections as a whole and in sections.

8. The length of the dust bag cage is more than 3 meters, and the steel one-time forming tube is worn.

9. The dust bag cage is galvanized, sprayed and silicone-treated.

Required process: firm welding, smooth and straight appearance. The dust removal skeleton is the rib of the filter bag, and the quality of the dust removal skeleton directly affects the working state and service life of the filter bag.

Skeleton type: Commonly used are circular skeleton, trapezoidal skeleton and spring skeleton, and dust removal equipment manufacturers produce skeletons.

A dust collection hood is set up in each ash place, and the dust-containing gas is transported to the dust removal device through the pipeline gas path, in which the dust is collected in the dust removal device after the gas-solid separation is carried out, and the clean gas is introduced into the main pipe or directly discharged into the whole set of equipment into the atmosphere, that is, the dust removal system, and the dust collector is an important part of the system. From the perspective of ventilation and dust removal, dust is all solid small particles that can float in the air for a long time, and is a dispersion system, called aerosol, in which air is the dispersed medium and solid particles are the dispersed phase. A dust collector is a device that separates these small solid particles from aerosols.

The dust removal skeleton is the pivotal department in the operation of the bag dust collector, the dust removal skeleton is the rib of the dust removal bag, and is an important accessory of the dust collector, and there are also stretched venturi tubes, which can be welded on the cage mouth according to user requirements, venturi tubes, short tubes, hanging mouths, bag hose hoops and other accessories, and can be made according to customer requirements Non-scale cage frame, dust removal skeleton is characterized by firm welding, smooth and straight appearance, dust removal skeleton with patented technology, one-time molding automatic welding equipment manufacturing and production, product function superior, no desoldering, burr, The design structure is strong and reliable, easy to install and long service life.

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In the case of negative pressure operation and external filter type of dust removal skeleton, dust-containing air flow enters the filter bag, no matter what kind of ash cleaning method is chosen, after the dust removal skeleton runs for a period of time, the problem of dust accumulation will occur at the bottom of the filter bag. These deposits are deposited by the dust on the inner wall of the filter bag when the ash is cleaned, which can be used. But the internal structure of the existing dust removal skeleton (cage frame, filter bag) is not convenient for the utilization of this part of the ash accumulation.

The existing way to remove the dust is to open the top lid of the bag chamber first, and then take out each cage rack and filter bag, and clean the ash one by one. This method has a large workload, long ash cleaning time and high labor intensity.

The mechanism of filtration and dust removal is the comprehensive effect of short-range trapping mechanisms such as sieve effect, diffusion sedimentation, direct entrapment, inertial collision and electrostatic adsorption. When dust-laden air passes through filter media such as grids, fabrics, nonwovens, foams, etc., the dust layer formed by the dust inside or on the surface of the filter material, as well as the filter layer formed by the upper layer of the powder, are captured and separated from the air flow. With the thickening of the dust layer, the dust layer needs to be removed regularly to ensure the continuous progress of the dust removal process.

Textile fiber dust collectors are classified according to different dust collector structures, and textile fiber dust collectors include dust cage filtration, filter bag filtration and filled filter bed filter dust collectors.

1) Dust cage filtration: The dust cage is a cylinder surrounded by a metal grid, and the openings at both ends of the cylinder communicate with the air duct. The dust cage uses the airflow pressure generated by the fan to press the dusty air to the surface of the dust cage, and most of the linter and impurities are trapped on the surface of the dust cage.

A filter fiber mesh layer is formed, and at the same time, the dust-containing air through the dust cage enters the second stage filtration device through the channels on both sides of the dust cage. The pre-separator can be seen as a type of dust cage filtration. The advantages of dust cage filtration are that there are fewer auxiliary equipment, simple and convenient management, and the reuse rate of the filtered cotton basket is higher, and it is generally assembled into dust filtration equipment with other filtration methods.

The disadvantage is that the processing air volume is not large, the area is relatively large, and the power consumption is more.

2) Filter bag filtration: The filter bag (called the dust removal bag) is a columnar body surrounded by a single layer of fabric, usually round, which is characterized by a simple structure and is convenient for ash cleaning. When the dusty air passes through the filter bag, the dust is separated from the air flow with the help of screening, collision, interception and other effects.

The advantage of filter bag filtration is that the filtration efficiency is high, and the full efficiency of dust removal can reach more than in the dust room of the textile mill, with simple structure and low power consumption. The disadvantages are that it is easy to fire, the filter bag is easy to condensate, the amount of filtered air per unit area is small, the amount of filter cloth is large, and the dust concentration of the filtered air is high and the working conditions are poor in a short time after ash cleaning.

3) Filled filter bed filtration: Filled filter bed is to cover porous filter materials such as foam, nonwoven, and plush on mesh drums, flat plates and other components. With its good surface filtration and internal filtration effect, the dust is separated from the air stream, and the advantage of filled filter bed filtration is the large filtration air volume.

Installation method of dust removal skeleton:

1. Before installing the dust removal bag and dust removal skeleton, determine whether the dust collector bag skeleton is a set and whether the scale is the same.

2. Before installing the dust removal bag and dust removal skeleton, determine whether the bag skeleton of the dust collector is consistent with the scale of the bag filter pattern.

3. Before installing the dust bag and dust removal skeleton, determine whether there are burrs in the hole of the pattern plate, and if there is, please remove it, for fear of scratching the bag.

4. In the installation of dust removal bags and dust removal skeletons, please check whether the hole of the flower board is properly installed in place, there can be no bulge, and it should be smooth to touch it with your hands.

5. Check whether there are burrs in the dust removal skeleton before installing the dust removal bag and dust removal skeleton.

Dust removal filter bag skeleton installation.

There is a consensus in the dust removal industry: the quality of the dust collector is three points of production and seven points of installation. The installation of the dust bag is an important part of the installation of the bag filter, and the installation of the dust removal skeleton will determine whether the bag can work normally and for a long time during the service life.

The dust bag and the dust removal skeleton are installed on the dust collector flower board, and the distance between the pattern plate holes on the pattern board is the distance between the bag skeleton. In the design of the pattern board, the distance of the bag hole is mainly arranged, and the spacing is related to the bag diameter, bag length, dust nature, filtration speed and other factors.

If the distance between the dust removal bags (dust removal skeleton) is too close, the air flow in the box will rise, resulting in an increase in smoke and dust emissions, and the local filtration load of the filter material will be too high or the cleaning force will be insufficient.

Therefore, pre-installation inspection is essential: before installation, the dust removal bag and dust removal skeleton used must be checked one by one. Because there may be damage during transportation, it must be inspected before installation, which is an important part of ensuring the high-quality operation of the dust collector.

During installation, the coordination inspection of the dust bag and dust removal skeleton is carried out: because the bag filter has very high requirements for the degree of coordination between the pattern board, the bag and the skeleton, the gap between the bag cage and the bag must be controlled in strict accordance with the technical requirements when installing the skeleton.

Finally, the re-inspection after installation: after the installation of the skeleton, all the skeleton installation should be checked, and the dust bag should be determined one by one to determine the quality of the installation, focusing on the coordination between the top cover of the skeleton and the bag mouth and the stability of the skeleton.

In short, the hole of the flower plate should be evenly arranged, and the dust removal skeleton and dust removal bag will also be evenly distributed on the flower board, and attention must be installed firmly and sealed when installing the dust removal bone and dust removal bag, so that there will be no air leakage and good ash cleaning. In order to improve the utilization rate of dust removal skeleton and dust removal bag.

There are two common types of dust removal skeletons here:

The silicone dust removal skeleton is a special skeleton for desulfurization and dust removal of power plants, using carbon steel or stainless steel wire of sufficient strength, and using special equipment for one-time welding and forming, and the post-welding treatment of the silicone dust removal skeleton is galvanized on the surface to prevent rust, and the silicon dust removal skeleton is widely used in high temperature and high corrosion environments.

Multi-joint skeletons are mostly used in dust collectors, and there is not enough space when installing the filter bag frame, so multiple connections are required. The skeleton of the dust collector is a dry gas-solid separation device used to support the filter bag, which separates the dust from the air flow, and finally purifies the gas through the exhaust pipe discharger. A part of the uncollected dust particles also escaped.

Dust removal skeleton.

The common types of dust removal skeletons are generally classified according to the shape There are three main types:

Circular dust removal skeleton (external filter type). This type of skeleton is one of the commonly used forms of dust removal skeleton, the circular dust removal skeleton structure is lightweight, easy to install and maintain, and the quality directly affects the filtration status and service life of the filter bag.

Trapezoidal dust removal skeleton. This type of dust removal skeleton generally adopts silicone spraying or galvanizing, painting and other technologies, with firm plating and corrosion resistance, which avoids the surface rust of the dust removal skeleton and the adhesion of the filter bag after the dust collector works for a period of time, ensures the smooth return of the dust removal filter bag, and reduces the damage to the dust removal bag in the process of bag replacement. In order to ensure the strength of the steel wire and improve the appearance quality, the transparent trapezoidal dust removal skeleton is drawn by round steel (drawn into 3mm), and then when the body is assembled on the butt welding tire, the grinding meets the technical requirements.

Plug-in dust removal skeleton. The joint body of the plug-in type dust removal skeleton is provided with an exposed decorative part, the exposed decorative part is connected with two plugs, the two plugs are at an acute angle between the two plugs, the peripheral surface of the two plugs is lower than the joint body, and a canopy board slot is arranged on the upper side of the joint body.

Dust removal skeleton.

The calculation of the dust removal skeleton should be calculated according to the specific parameters The general transportation cost is relatively high, and the freight is calculated according to the party, so it is necessary to pay more attention to the calculation of freight.

For example, when purchasing 130 times 6 meters of cloth bags supporting the number of skeletons of 3000, the size of the general skeleton is 115 times 5980, and the calculation method is that the calculation result is square, and the general loading may occupy slightly more space than the actual calculation due to the problem of placement, so the approximate number is 240 square meters, so that you can know the total freight at the price of each square, and then divide by the quantity.

Dust removal skeleton.

The factors that affect the dust removal skeleton are as follows:

1. The influence of the size of the dust removal skeleton.

In the geometric size of the dust removal skeleton, the diameter of the dust removal skeleton, the gas inlet, and the shape and size of the exhaust pipe are the most important influencing factors.

2. The influence of gas parameters on the performance of the dust removal skeleton.

Including the influence of gas flow, the influence of gas dust concentration, the influence of gas moisture content, the influence of gas density, viscosity, pressure, temperature, etc.

3. The influence of the physical properties of dust on the dust removal skeleton.

4. The influence of the roughness of the inner wall of the dust removal skeleton.

The dust particles concentrated near the wall will cause swirl due to the rough surface, so that some dust particles are thrown into the rising air flow and enter the exhaust pipe, reducing the dust removal efficiency.