CN207605544U - Boiler for feed production tail gas cyclone type dedusting and purifying device - Google Patents

Abstract

The utility model relates to the technical field of dust removal equipment, in particular to a boiler exhaust cyclone dust removal and purification device for feed production. Boiler tail gas cyclone dust removal and purification device for feed production, including housing (1), air supply pipe (2), temperature sensor (3), exhaust pipe (4), water seal tank (5), water pool (6), Water inlet pipe (7), water pump (8), water outlet pipe (9), controller (10); the device is simple in structure, easy to operate, small in floor area, and has good dust removal effect. Combined spray dust removal and cyclone dust removal, dust removal more thorough.

Description

Boiler tail gas cyclone dust removal and purification device for feed production

technical field

The utility model relates to the technical field of dust removal equipment, in particular to a cyclone type dust removal and purification device for boiler tail gas used in feed production.

Background technique

The cyclone dust collector is a kind of dust removal device. The dust removal mechanism is to make the dust-laden air flow rotate, and the dust particles are separated from the air flow by centrifugal force and collected on the wall of the device, and then the dust particles fall into the ash hopper by gravity. .

The current cyclone dust collector belongs to dry dust removal. Because it uses the centrifugal force of the cyclone to remove the particles in the dust, in actual operation, it can only remove larger particles in the dust, and the removal efficiency of fine dust particles is low. Incomplete; the flue gas temperature is high, and these cyclone dust collectors have no cooling function. If they are discharged without cooling treatment, air pollution will be caused. Therefore, other equipment is generally required to cool down, which increases the tail gas treatment process and increases The footprint of the equipment is reduced, thereby increasing the production cost. In addition, the cyclone dust collector collects the dry particles into the dust box, which is easy to cause dust and secondary pollution during cleaning.

Contents of the invention

Aiming at the problems existing in the prior art, the utility model provides a boiler tail gas cyclone type dust removal for feed production with simple structure, convenient operation, small floor space, good dust removal effect, combination of spray dust removal and cyclone dust removal, and more thorough dust removal. Purification device.

In order to achieve the above purpose, the technical solution adopted by the utility model is: boiler tail gas cyclone dust removal and purification device for feed production, including housing, air supply pipe, temperature sensor, exhaust pipe, water seal tank, water pool, water inlet pipe , water pump, outlet pipe, controller;

The top side wall of the housing is provided with an air supply pipe tangential to the inside of the housing, a temperature sensor is provided in the air supply pipe, an exhaust pipe is provided on the top of the housing, and a water seal groove is provided outside the bottom of the housing. The bottom of the water seal tank communicates with the bottom of the shell, and an overflow port is provided on the top side wall of the water seal tank; a small amount of water is placed on the bottom of the shell and the water seal tank, and the water can just cover the opening between the two, thus forming water seal;

There is a partition in the middle of the pool, and the partition divides the pool into two parts: a sedimentation tank and a clear water tank, and a filter port is arranged on the upper part of the partition; the overflow on the water seal tank is connected to the top of the sedimentation tank through a pipe;

One end of the water inlet pipe is connected to the water inlet of the water pump, and the other end extends into the clear water tank. One end of the water outlet pipe is connected to the water outlet of the water pump, and the other end is divided into three pipes, which are respectively connected to the air supply pipe, the upper part and the lower part of the housing, and extend to the air supply pipe. There is a nozzle on the outlet pipe inside the pipe and the shell, and an electric valve on the outlet pipe;

The controller is connected with the water pump and the electric valve through the control line, and the controller is connected with the temperature sensor through the signal line.

Wherein, the housing is hollow, and its upper part is a cylindrical structure, and its lower part is a rounded truncated structure.

Wherein, the bottom of the housing is provided with a slag removal port, and the slag removal port is provided with a cover.

Wherein, the bottoms of the water seal tank, the sedimentation tank and the clear water tank are provided with sewage pipes, and sewage valves are provided on the sewage pipes.

Wherein, the number of nozzles on the outlet pipe is 2-3.

Wherein, a filter screen is provided at the water filter port.

When working, the exhaust gas discharged from the boiler is sent into the casing through the air supply pipe under the action of the fan, and the exhaust gas enters the interior from the top of the casing, and rotates to reach the bottom of the casing. Under the action of centrifugal force, the larger dust particles in the exhaust gas Separated from the air flow and collected on the inner wall of the shell, and then use gravity to make the dust particles fall to the bottom of the shell; because the exhaust gas discharged from the boiler contains high heat, when the exhaust gas passes through the air supply pipe, the temperature sensor senses the inside of the air supply pipe The temperature rises and sends the signal to the controller. The controller controls the electric valve to open, and at the same time controls the water pump to start running. The fine dust particles in the exhaust gas can be drenched and fall into the bottom of the shell, and the temperature of the exhaust gas can be cooled at the same time; the exhaust gas after cyclone and spray dust removal is discharged through the exhaust pipe, and the dust particles and water fall into the bottom of the shell , the sewage in the shell and the water seal tank keeps rising, and when it reaches the overflow port set by the water seal tank, it flows out from the overflow port and flows into the sedimentation tank, and the water settled in the sedimentation tank rises to the water filter port, It flows into the clear water tank from the water filter port; after the exhaust gas is stopped, the temperature sensor senses that the temperature in the air supply pipe drops, and sends a signal to the controller to control the water pump to stop running, and the controller controls the electric valve to close at the same time; the shell and the pool need to be cleaned At this time, the sewage valve of the sewage pipe will be opened, the water in the shell and the pool will be drained, and it will enter the pool for cleaning. The sediment at the bottom of the shell can be cleared out from the slag cleaning port.

The utility model has the following beneficial effects:

①The utility model has simple structure and convenient operation. The spray dust removal and cyclone dust removal are combined, and the larger dust particles in the tail gas are removed by the cyclone dust removal, and the fine dust particles in the tail gas are removed by the spray dust removal, which improves the dust removal effect. It makes dust removal more thorough; spraying tail gas can cool it down and reduce air pollution; in addition, the combination of spray dust removal and cyclone dust removal reduces the footprint of tail gas treatment equipment, thereby reducing production costs.

②The water outlet pipes of the utility model respectively extend to the air supply pipe, the upper part and the bottom of the casing to spray the tail gas, so as to improve the effect of spraying and dust removal.

③ There is a small amount of water at the bottom of the shell and the water seal tank of the utility model, and the water can just cover the opening between the two, thereby forming a water seal, preventing the opening at the bottom of the shell from affecting the air flow of the cyclone dust removal, and affecting the dust removal effect; and the sewage after spraying the tail gas in the shell falls to the bottom, the sewage in the shell and the water seal tank continues to rise, and flows into the sedimentation tank from the overflow port, and the water settled in the sedimentation tank rises to the water filter port, from The water filter port flows into the clean water tank, and then the water in the clean water tank is pumped to the air supply pipe, the upper and lower parts of the housing by the water pump, and the exhaust gas is sprayed to realize water recycling, environmental protection and energy saving.

④ A small amount of water is placed at the bottom of the shell of the utility model, and the dust particles falling into the bottom of the shell after dust removal will not cause dust and avoid secondary pollution.

⑤The clapboard in the middle of the pool of the utility model divides the pool into two parts, the sedimentation tank and the clear water tank. A water filter port is provided on the upper part of the partition board, and a filter screen is provided at the water filter port. After filtering, it flows into the clear water pool to reduce the sludge in the water pumped up by the water pump for spraying, prolong the service life of the water pump, and improve the effect of spraying and dust removal at the same time.

⑥The utility model monitors the temperature change of the air supply pipe through the temperature sensor, and transmits the signal to the controller, and the controller controls the operation status of the electric valve and the water pump, so as to realize automatic spraying of exhaust gas, save manpower, and will not cause waste of water resources .

⑦The bottom of the shell of the utility model is provided with a slag cleaning port, and the bottom of the water seal tank and the pool is provided with a sewage pipe, which is convenient for cleaning the shell and the pool.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model.

Fig. 2 is a schematic front view of the utility model.

Fig. 3 is a schematic cross-sectional view of the housing of the utility model.

Fig. 4 is a circuit diagram of the utility model.

In the figure, 1-shell, 2-air supply pipe, 3-temperature sensor, 4-exhaust pipe, 5-water seal tank, 6-water pool, 7-water inlet pipe, 8-water pump, 9-water outlet pipe, 10 -Controller, 11-partition, 12-sedimentation tank, 13-clear water tank, 14-filter outlet, 15-nozzle, 16-electric valve, 17-slag cleaning port, 18-drainage pipe.

Detailed ways

Embodiment 1: Boiler tail gas cyclone dust removal and purification device for feed production, including housing 1, air supply pipe 2, temperature sensor 3, exhaust pipe 4, water seal tank 5, water pool 6, water inlet pipe 7, water pump 8, outlet Water pipe 9, controller 10;

The shell 1 is hollow, and its upper part is a cylindrical structure, and the lower part is a rounded table structure; the top side wall of the shell 1 is provided with an air supply pipe 2 tangential to the inside of the shell 1, and the air supply pipe 2 is provided with a There is a temperature sensor 3, an exhaust pipe 4 is provided on the top of the housing 1, a slag removal port 17 is provided at the bottom of the housing 1, a cover is provided on the slag removal port 17, a water seal groove 5 is provided on the outside of the bottom of the housing 1, and the water seal The bottom of the tank 5 communicates with the bottom of the housing 1, and the top side wall of the water seal tank 5 is provided with an overflow port; a small amount of water is placed at the bottom of the housing 1 and the water seal tank 5, and the water can just cover the communication opening between the two , thus forming a water seal;

A dividing plate 11 is arranged in the middle of the pool 6, and the dividing plate 11 divides the pool 6 into two parts, a sedimentation tank 12 and a clean water tank 13. The upper part of the dividing plate 11 is provided with a water filter port 14, and the water filter port 14 is provided with a filter screen; the water seal tank 5 The overflow provided on the top is connected with the top of the sedimentation tank 12 through the pipeline; the bottom of the water seal tank 5, the sedimentation tank 12 and the clean water tank 13 is provided with a sewage pipe 18, and the sewage pipe 18 is provided with a sewage valve;

One end of the water inlet pipe 7 is connected to the water inlet of the water pump 8, and the other end extends into the clean water tank 13. One end of the water outlet pipe 9 is connected to the water outlet of the water pump 8, and the other end is divided into three pipes connected to the air supply pipe 2 and the upper part of the housing 1 respectively. and the lower part, extending to the air supply pipe 2 and the outlet pipe 9 inside the housing 1 are provided with two nozzles 15, and the outlet pipe 9 is provided with an electric valve 16;

The controller 10 is connected with the water pump 8 and the electric valve 16 through the control line, and the controller 10 is connected with the temperature sensor 3 through the signal line.

When working, the tail gas discharged from the boiler is sent into the casing 1 through the air supply pipe 2 under the action of the fan, and the tail gas enters the interior from the top of the casing 1, and reaches the bottom of the casing by rotating motion, and the particles in the tail gas are relatively small under the action of centrifugal force. Large dust particles are separated from the air flow and collected on the inner wall of the housing 1, and then the dust particles fall to the bottom of the housing 1 by gravity; because the exhaust gas discharged from the boiler contains high heat, when the exhaust gas passes through the air supply pipe 2, The temperature sensor 3 senses the temperature rise in the air supply pipe 2, and sends the signal to the controller 10, the controller 10 controls the electric valve 16 to open, and at the same time controls the water pump 8 to start running, and the water pump 8 pumps the water in the clean water tank 13 to the air supply pipe 2 and the upper and lower parts of the shell 1, and sprayed out through the nozzle 15, the fine dust particles in the exhaust gas can be drenched and fall into the bottom of the shell 1, and the exhaust gas can be cooled at the same time; after the cyclone and spray The tail gas after dedusting is discharged through the exhaust pipe 4, the dust particles and water fall into the bottom of the shell 1, the sewage in the shell 1 and the water seal tank 5 rises continuously, and rises to the overflow port set by the water seal tank 5 , and flow into the sedimentation tank 12, the water deposited in the sedimentation tank 12 rises to the water filter port 14, and flows into the clear water tank 13 from the water filter port 14; after the tail gas is stopped, the temperature sensor 3 senses the air supply The temperature in the pipe 2 drops, and the signal is sent to the controller 10 to control the water pump 8 to stop running. At the same time, the controller 10 controls the electric valve 16 to close; when the shell 1 and the pool 6 need to be cleaned, the drain valve of the drain pipe 18 will be opened. Drain the water in the housing 1 and the water pool 6, and enter the water pool 6 for cleaning, and the sediment at the bottom of the housing 1 can be cleared out from the slag cleaning port 17.

Embodiment 2: The specific implementation method is the same as that of Embodiment 1, the difference is that three nozzles 15 are provided on the water outlet pipe 9 extending to the inside of the air supply pipe 2 and the housing 1 .

Claims (10)

1. boiler for feed production tail gas cyclone type dedusting and purifying device, which is characterized in that including shell（1）, ajutage（2）、 Temperature sensor（3）, exhaust pipe（4）, water sealed tank（5）, pond（6）, water inlet pipe（7）, water pump（8）, outlet pipe（9）, controller （10）；

Shell（1）Top sidewall be equipped with and shell（1）The ajutage that inside is tangentially blown（2）, ajutage（2）It is interior to be equipped with temperature Sensor（3）, shell（1）Top is equipped with exhaust pipe（4）, shell（1）Bottom outside be equipped with water sealed tank（5）, water sealed tank（5）Bottom Portion and shell（1）Bottom communicates, water sealed tank（5）Top sidewall be equipped with gap；Shell（1）And water sealed tank（5）It puts bottom There is a small amount of water, these water can just cover the port that the two communicates, to form water seal；

Pond（6）Centre is equipped with partition board（11）, partition board（11）By pond（6）It is divided into precipitation tank（12）And Rinsing Area（13）Two Point, partition board（11）Top is equipped with drainage mouth（14）；Water sealed tank（5）Upper set gap passes through pipeline and precipitation tank（12）Top Portion connects；

Water inlet pipe（7）One end water pump（8）Water inlet, the other end reaches Rinsing Area（13）It is interior, outlet pipe（9）A termination Water pump（8）Water outlet, the other end is divided into three pipelines and is respectively connected to ajutage（2）, shell（1）Upper and lower part reaches and send Air hose（2）And shell（1）Internal outlet pipe（9）It is equipped with nozzle（15）, outlet pipe（9）It is equipped with motor-driven valve（16）；

Controller（10）Pass through control line and water pump（8）, motor-driven valve（16）Connection, controller（10）It is passed by signal wire and temperature Sensor（3）Connection.

2. boiler for feed production tail gas cyclone type dedusting and purifying device according to claim 1, which is characterized in that described Shell（1）It is hollow, and upper part is divided into cylindrical structure, lower part is divided into inverted round stage structure.

3. boiler for feed production tail gas cyclone type dedusting and purifying device according to claim 1, which is characterized in that described Shell（1）Bottom is equipped with breast hole（17）, breast hole（17）Equipped with lid.

4. boiler for feed production tail gas cyclone type dedusting and purifying device according to claim 2, which is characterized in that described Shell（1）Bottom is equipped with breast hole（17）, breast hole（17）Equipped with lid.

5. the boiler for feed production tail gas cyclone type dedusting and purifying device according to any one of claim 1-4, It is characterized in that, the water sealed tank（5）, precipitation tank（12）And Rinsing Area（13）Bottom be equipped with blow-off pipe（18）, blow-off pipe（18） It is equipped with blowdown valve.

6. the boiler for feed production tail gas cyclone type dedusting and purifying device according to any one of claim 1-4, It is characterized in that, the outlet pipe（9）On nozzle（15）Quantity is 2-3.

7. boiler for feed production tail gas cyclone type dedusting and purifying device according to claim 5, which is characterized in that described Outlet pipe（9）On nozzle（15）Quantity is 2-3.

8. the boiler for feed production tail gas cyclone type dedusting and purifying device according to any one of claim 1-4, It is characterized in that, the drainage mouth（14）Place is equipped with strainer.

9. boiler for feed production tail gas cyclone type dedusting and purifying device according to claim 5, which is characterized in that described Drainage mouth（14）Place is equipped with strainer.

10. boiler for feed production tail gas cyclone type dedusting and purifying device according to claim 6, which is characterized in that institute State drainage mouth（14）Place is equipped with strainer.