What is the role of a cyclone desander? Cyclone sand removal principle

Cyclone desander produced by Jinan Jinxinyuan Water Supply Equipment Factory.

According to the working principle of hydrocyclone, the equipment is widely used in many industrial sectors such as chemical industry, environmental protection, food, medicine, etc., and has remarkable effects in the field of water treatment to achieve sediment removal, turbidity reduction, and solid-liquid separation. The cyclone desander can meet the application of hydrocyclone to achieve solid-liquid separation.

Cyclone desander.

Applications: river water, well water sand removal, coal washing water, industrial beneficiation, solid-liquid separation, liquid degassing and separation of non-interdissolved substances, etc. It can be used in many industries such as air conditioning water treatment, chemical, petroleum, mining, medicine, and textile.

How it works. The swirl desander is the use of centrifugal separation principle for sand removal, because the water inlet pipe is installed in the eccentric position of the cylinder, when the water passes through the swirl desander inlet pipe, first along the tangent direction around the cylinder to form an oblique downward surrounding fluid, the water flow rotates and moves downward, when the water flow reaches a certain part of the cone, it turns to rotate upward along the axis of the cylinder, and finally discharges through the outlet pipe, and the impurities fall into the conical slag hopper at the bottom of the equipment along the cone wall under the action of the fluid inertial centrifugal force and its own gravity. The lower part of the cone is provided with a member to prevent the debris from rising upward, and when the debris accumulated in the slag hopper reaches a certain extent, as long as the manual butterfly valve is opened, the debris can flow out of the swirl sand remover under the action of water flow.

Features: 1. Simple structure, low cost, easy to install and operate.

2. Compared with other equipment, it has small size, large processing capacity, and saves on-site space.

3. High decontamination efficiency, small resistance coefficient, large overflow, convenient cleaning and reliable operation.

4. It can be cleaned during operation, that is, there is no need to turn off the water pump.

Removal of 44-74 micron solid particles from the slurry.

The desander is the second-level solid control equipment in the solid phase control system of drilling fluid, and is one of the important equipment for stabilizing and adjusting the technical indicators of drilling fluid, also known as cyclone desander, mud desander and drilling fluid desander.

The drilling fluid desander has the advantages of wear-resistant cast iron cyclone, secondary separation vibrating screen, stainless steel filter screen, quick installation screen mechanism, and explosion-proof control switch.

According to the size of the diameter of the cyclone, it is divided into cyclone desander and cyclone desilter. Generally, the combination of cyclones above 8 is called desander, and the commonly used cyclone is the cyclone, which is mainly used to separate the solid particles with a particle size of 47-76 m in the drilling fluid. According to the customer's requirements, several groups of cyclones are selected to combine into a desander.

In addition to oil and gas field drilling, the sand remover should also be widely used for mud purification in trenchless horizontal drilling, geothermal drilling, diaphragm wall engineering, piling and shield engineering.

The desand cyclone is the use of the principle of centrifugal separation for solid-liquid separation, because the liquid inlet is installed in the eccentric position of the cylinder, so when the drilling fluid enters the volute through the liquid inlet of the cyclone, first along the tangent direction of the volute cylinder to form an oblique downward circular fluid, resulting in a strong rotational motion, due to the different densities of sand and water, under the joint action of centrifugal force, centripetal force, buoyancy and fluid drag, the water with low density rises, is discharged from the outlet, and the particles with high density are sprayed out from the bottom nozzle. In order to achieve the purpose of desilting, it has the advantages of high sand removal efficiency, saving installation space, low leakage rate of small particles, and stable working condition.

We are glad to answer for you: how to match the swirl desander in the sand plant A: Pro, 1. The swirl desander should be installed on the main pipeline of the water supply network and fixed on the base, and a bypass should be added between the inlet and outlet water pipes.

2. In order to ensure the smooth flow of water inlet, a section of straight pipe with the same diameter as the water inlet should be installed before the water inlet of the equipment, and the length is equivalent to 10-15 times the diameter of the water inlet. 3. There should be enough maintenance space around the equipment during installation. 4. During normal operation, the inlet and outlet valves need to be opened, and the sewage valve and bypass valve should be closed.

5. According to the amount of sand content of the source water, the sand and sewage are discharged regularly, and the sewage valve is opened until the clear water flows out, and the sewage discharge process does not affect the normal water use of the system. 6. Close the sewage valve after the sewage discharge is bundled. 7. If the sand discharge pressure is insufficient, close the valve at the water outlet.

1. Different sizes: the cyclone machine is larger than the desilting and desanding machine, the box size of the cyclone machine is large, the pipe diameter is larger, the cleaning capacity is stronger, and it is suitable for cleaning coarse sand and sediment; The desilting and sanding machine has a small box size, a small pipe diameter, and a weak cleaning ability, which is suitable for cleaning fine sand and sediment.

2. The principle is different: the cyclone machine adopts the principle of swirl, and uses the action of the spiral groove to produce a whirlpool when the water flows, and sucks the sediment out of the water; The desilting and desanding machine adopts the washing principle, and uses the impact force of the water flow to wash out the sediment and sediment that the suspended lead is clear in the water.

3. The application range is different: the cyclone machine is suitable for cleaning coarse sand and sediment; The desilting and desanding machine is suitable for cleaning fine sand and sediment.

The difference is: The swirl desander is made according to the screening principle of the solid particles in the fluid when the sand body particles rotate in the desander, and then the filtration measures are combined to form a new type of wanton separation equipment. When the water flow enters the equipment tangentially from the water inlet of the desander under a certain pressure, a strong rotational motion is generated, due to the different densities of sand and water, under the action of centrifugal force, centripetal force, buoyancy and fluid traction, the water with low density rises and is discharged from the water outlet, and the sand particles with high density are discharged from the sewage outlet at the bottom of the equipment. Compared with the swirl desander on the current market, the filtration unit is increased (the filtration accuracy can be selected by the user), which has the advantages of high sand removal rate, saving the installation of empty banquet hail in a short time, low leakage rate of individual tiny solids, and stable working state.

There are two kinds of desilting and sand removal machine, which are very different in mechanical structure, and the large cyclone machine is mainly used to precipitate fine-grained dirt, while the medium-sized cyclone machine is mainly used to remove suspended dirt and trembling cleaners.

The working principle of the cyclone is to use strong centrifugal force to separate the mixture at high speed rotation. For example, the classic static hydrocyclone uses external pressure to push the feed mixture into the cyclone at a large speed, because the mixture is moving tangentially along the cyclone, which will promote the liquid to rotate along the cylinder wall, which is generally called external swirl.

The particles in the external swirl flow are subjected to centrifugal force, if its density is greater than the density of the surrounding liquid, the centrifugal force it is subjected to is getting greater and larger, once the centrifugal force is greater than the liquid resistance caused by the movement, the particles will overcome this resistance and move in the direction of the wall of the device, separate from the surrounding liquid, and the particles that arrive near the wall of the device are pushed by the liquid above the cyclone and move down along the wall of the device.

It reaches the vicinity of the underflow port and collects into a more cohesive suspension and is discharged from the underflow port. After separation, the liquid rotates downward and continues to move, and after entering the conical section, the liquid rotation speed accelerates due to the gradual reduction of the inner diameter of the cyclone separator. Due to the uneven distribution of pressure in the radial direction when the fluid generates eddy currents, the closer it is to the axis, the smaller it is, and the closer it is to the axis, it tends to be zero.

The swirl desander is the use of the principle of centrifugal separation for sand removal, because the water inlet pipe is installed in the eccentric position of the cylinder, when the water passes through the inlet pipe of the cyclone desander, first along the tangential direction around the cylinder to form an oblique downward surrounding fluid, the water flow rotates and moves downward, when the water flow reaches a certain part of the cone, it turns to rotate upward along the axis of the cylinder, and finally discharges through the outlet pipe, and the impurities fall into the conical slag hopper at the bottom of the equipment along the cone wall under the action of fluid inertia centrifugal force and its own gravity. The lower part of the cone is provided with a member to prevent the debris from rising upward, and when the debris accumulated in the slag hopper reaches a certain extent, as long as the manual butterfly valve is opened, the debris can flow out of the swirl sand remover under the action of water flow.

The swirl desander is based on the principle of centrifugal sedimentation and density difference, when the water flow enters the equipment tangentially from the desanding inlet under a certain pressure, it produces a strong rotational movement, due to the different densities of sand and water, under the joint action of centrifugal force, centripetal force, buoyancy and fluid drag, the water with low density rises and is discharged from the water outlet, and the sand particles with high density are discharged from the sewage outlet at the bottom of the equipment, so as to achieve the purpose of sand removal.

The main features of the swirl desander:

Mingyuan Kaide Filtration Equipment (Beijing) **** production of cyclone desander is a set of swirl and filtration in one, this product is mainly used to remove groundwater and solid particles including underground hot water and other water sources, suitable for water source heat pump system, air conditioning circulating cooling water, chilled water system, winter cold and warm circulating water system, industrial cooling circulating water system, etc. Early closure is widely used in many industrial sectors such as chemical industry, environmental protection, food, medicine, etc., and has remarkable effects in the field of water supply treatment to achieve sand removal, turbidity reduction, solid-liquid separation, etc.

Features of the cyclone desander:

A cyclone desander uses multiple filter cartridges for filtration, with a large effective filtration area and small pressure loss. The design filtration area is 3 5 times the inlet and outlet area.

b.Swirl desander repair and maintenance is convenient: set up maintenance manhole, convenient loading and unloading of filter cartridges, backwashing filter.

c.The cyclone desander adopts the structure of multi-cartridge filtration and one-by-cartridge cleaning, and the water supply is uninterrupted during cleaning.

d.Cyclone desander program control: the parameters of the system can be set according to the actual situation of the user's site.

e.Advanced control system of cyclone desander: The control system has high accuracy, and its working mode and operating state can be adjusted according to different water quality, so as to improve its ability to adapt to water quality.

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Selection instructions.

When selecting the whirlpool sand remover, under the premise of satisfying the flow rate, the large model equipment is preferred, and it is recommended to replace the large equipment with several equipment in parallel in the system. 5. Technical parameters.

1. The turbidity of the inlet water is 320 degrees 2, the turbidity of the effluent is 10 degrees 3, and the inlet pressure is 04 MPa 4, pressure loss 00 28mpa 5, sand removal diameter

The cyclone desander is made according to the screening principle of solid particles in the fluid when rotating in the desander, which integrates swirl flow and filtration, and realizes remarkable effects such as sand removal, turbidity reduction and solid-liquid separation in the field of water treatment. It is widely used in water source heat pumps, water treatment, food, and other industrial sectors. River water, well water desanding, coal washing water, industrial beneficiation, solid-liquid separation, liquid degassing and non-interdiscal separation.

Sand washing tank: carbon steel material, prismatic structure, external dimensions, the interior is divided into two parts through the weir plate, of which the effective volume of the sand washing tank is cubic, and the oil and water chamber is cubic;

Sand washing pump: centrifugal impurity pump, suitable for lifting sand-containing media; Sewage ** pump: centrifugal impurity pump, suitable for lifting sand-containing media; Hydrocyclone (sand removal and sand washing):

XL-150 or XL200 heavy-weight rubber-lined cyclone is used, lined with wear-resistant rubber, with high efficiency and long service life; Runcheng Petrochemical Jet Cleaning Nozzle: Spraying Systems Co., USAThe production of 3 4 high-speed jet nozzles, made of stainless steel, high efficiency and wear resistance.

The solid control equipment desander consists of a 10 to 12 inch cyclone set. The common BWCSQ series cyclone desander can be used in oil and gas, coalbed methane, shale gas and other drilling fields, as well as directional drilling, shield pipe jacking construction, river dredging and other fields.

BWCSQ series cyclone desander.

How to maintain the cyclone desander? The maintenance methods are:

During normal operation, it is necessary to open the inlet and outlet valves and close the sewage valve;

When the sand in the storage tank is stored to a certain height, it should be discharged. When discharging the sewage, open the sewage valve and know that the clean water flows out;

After the sewage is discharged, the sewage valve can be closed.

If the sand discharge pressure is insufficient, the valve at the water outlet can be closed.

Installation and commissioning: The foundation of equipment installation should be done, and the foundation must be smooth, or it can be directly installed on the ground;

installation of pipes and water flow direction;

It can be used in parallel according to the actual treatment water;

It can be used in series according to the actual processing accuracy;

floor plan; Since there are no moving parts in the working process of the equipment, the equipment is maintenance-free. However, it is necessary to keep the inlet load stable and the blowdown valve to open and close evenly. Avoid man-made damage.

The solid phase materials in drilling mainly refer to slurry clays, weighted materials, drill cuttings and some other solid materials. The solid substances in the drilling fluid are divided into slurry clays, cuttings, weighting substances and solid substances in treatment agents.