What are the safety hazards of concrete batching plant?

The concrete batching plant staff may have the following behaviors when operating the equipment, which will cause potential safety hazards:

Operational errors, neglect of safety, neglect of warnings; causing the safety device to fail; use of unsafe equipment; Hand instead of tool operation; improper storage of items; venturing into dangerous places; climbing or sitting in unsafe positions; Work and stay under the lifting object; When the machine is running, refueling, repairing, inspecting, adjusting, welding, cleaning, etc.; Distracting behavior; Neglect the use of PPE in operations or situations where it is necessary; unsafe attire; Incorrect handling of flammable, explosive and other dangerous goods.

When operating the concrete batching plant equipment, it is necessary to develop good habits, before starting the operation, it is necessary to carefully check the safety status of the tools, equipment or environment used, and the equipment with unsafe tools, unsafe environment, defects or lack of safety guarantee must not be used.

Answer: The potential safety hazards of the concrete batching plant mainly include: first, when the mixing building is running, there are potential safety hazards in the loader shoveling materials; Second, there are potential safety hazards when the car transporting concrete is overweight on the road; the third is the potential safety hazard of concrete pump truck when hitting concrete; Fourth, there are potential safety hazards in the mixing building of the concrete batching plant during the illegal operation during mixing.

The concrete batching plant must do a good job in safety production, and carry out potential safety hazards from time to time.

Large-scale investigation and rectification, only in this way can we effectively eliminate all kinds of potential safety hazards.

Potential safety hazards of mixing plant: divided into three major aspects: production safety hazards, transportation safety hazards, quality and safety hazards, production safety hazards are mainly based on ensuring personnel safety, equipment maintenance, normal production, transportation safety hazards: emphasizing the concrete tanker in the transportation process, the avoidance of social vehicle personnel, the safety of driving on the construction site, etc.

Quality and safety hazards include: incoming inspection of raw materials, controllable management of incoming materials, treatment measures for unqualified materials, etc., in short: safety first, quality first, to ensure production. This is one of the rules of survival of the mixing plant.

1. The installation of the concrete batching plant should be carried out by professionals according to the provisions of the factory manual, and the commissioning should be organized under the auspices of technical personnel.

2. The air compressor, belt conveyor and concrete mixer and other equipment supporting the Hood Wanqing Mixing Plant shall be subject to the provisions of Section 1 of this regulation.

3. The pre-operation inspection items should meet the following requirements:

1) There are no foreign objects stuck in the transmission, moving parts of the mixing drum and various supporting mechanisms, as well as the warehouse door, bucket door, track, etc.;

2) The oil level height of each lubricating oil tank meets the regulations;

3) Open the excessive water accumulation of the gas-water separator in the valve discharge gas circuit system, and open the sewage screw plug of the gas storage cylinder to release the oil-water mixture;

4) The installation of the wire rope and the winding of the drum are correct, the wire rope and pulley meet the regulations, and the brake of the lifting hopper and the dragline is effective and effective;

5) The bolts of each part have been tightened, the feeding and material gripping discharging valves have no overrun wear, and the tension of each conveyor belt is appropriate and does not deviate;

6) All the control and display parts of the weighing device are working normally, and their accuracy is in accordance with the regulations;

7) Each electrical device can effectively control the mechanical action, and there is no obvious damage to the contact points and dynamic and static contacts.

4. Qualified sand and stone aggregates should be prepared according to the technical performance of the mixing plant, and those whose particle size exceeds the permitted range shall not be used.

5. All parts of the unit should be started gradually. After starting, the operation of each component and the indication of each instrument should be normal, and the pressure of oil, gas and water should meet the requirements before starting the operation.

6. During the operation, it is strictly forbidden for personnel to enter the storage area and under the lifting bucket.

7. The bin lid should be covered before the mixing drum starts. During the operation of the machinery, it is strictly forbidden to put your hands and feet into the hopper or mixing drum to explore.

8. When the dragline is stuck by an obstacle, it shall not be forcibly lifted, and the heavy objects shall not be lifted with the dragline, and the rotary operation shall not be carried out in the process of pulling.

9. The mixer shall not be stopped when it is fully loaded, and when there is a fault or power failure, the power supply should be cut off immediately, the switch box should be locked, the concrete in the mixing drum should be cleared, and then the fault should be eliminated or the power supply should be restored.

10. The machinery of the mixing plant shall not be overloaded; The operation of the motor should be checked, and when the sound is abnormal or the temperature rise is too high, it should be stopped immediately for inspection; When the voltage is too low, it should not be forced to operate.

11. Before the mixer is stopped, it should be unloaded first, and then the switches and pipelines of each part should be closed in order. All the cement in the spiral pipe should be conveyed out, and no material should remain in the pipe.

12. After the operation, the mixing drum, discharge door and discharge hopper should be cleaned, and washed with water, and the additive and its supply system should be washed at the same time. The knife holder and knife edge of the weighing system should be cleaned, and the weighing accuracy should be ensured.

13. In the freezing season, the water stored in the pump, additive pump, water tank and additive box should be exhausted, and the water pump and additive pump should be started to run for 1-2min

14. When the mixing plant is transferred or deactivated, the materials in the water tank, additive box, cement, sand, stone storage hopper and weighing hopper should be discharged and cleaned. During the transfer, the rod and bar scale head balance weight rod should be fixed, and the sensor should be unloaded.

Core issues. 1. Receivables (poorly controlled accounts receivable are dead), 2. Break-even point (if you don't know the balance point, you can't determine the direction of the market), 3. ** relationship (environmental protection, quality supervision, etc.).

Since you have this idea, it means that there is a certain number of businessmen in your country, and it is increasing year by year.

Second, the market price of cement in the country is 50 yuan. Taking C30 as an example, the raw materials in different regions are different, and the ** varies greatly. The house price in Zhengzhou is 240 yuan, counting labor, water, electricity, and miscellaneous expenses, 255 yuan, about 300-330 yuan.

Dazhou, Sichuan, the cost is 265 yuan, counting labor, water, electricity, and miscellaneous expenses, the total cost is 280 yuan, and the price is 330 yuan. The profit is between 40-70, but the competition is fierce in some places, and there are many mixing plants built, and the profit is low. Shandong Heze, the cost is 190-200 yuan, counting labor, water, electricity, miscellaneous expenses, the total cost is 210-210 points, and the selling price.

Profit 20-30Then, we can calculate the required funds. To do this, at least Duan Kong must have a HZS35 station in the countryside and actually produce 18-25 tons per hour.

The cost of this equipment is about 18-200,000 yuan, including freight, installation, and foundation, and is estimated to be 25-30 yuan. First of all, it is best to build a hzs50 station, the actual output per hour is about 37 square meters, the equipment cost is 20-28, and the total cost is 27-35. Then you also need to get a few acres of land, build an office, build a weighbridge, and a forklift.

The total amount of this investment is about 400,000-600,000 yuan. Sell 300 square meters of hzs50 stations every day, one party makes a profit of 50 yuan, 300 * 50 = 15000.