Bag-type dust collector for hazardous waste incineration flue gas treatment

Abstract

The utility model discloses a bag-type dust collector for hazardous waste incineration flue gas treatment, which comprises a shell, a flue gas inlet and a flue gas outlet are arranged on the shell, a gas purification chamber communicated with the flue gas outlet is arranged in the shell, a plurality of blowing pipes are arranged in the gas purification chamber, blowing holes are arranged at the lower ends of the blowing pipes, and the blowing holes are communicated with the flue gas inlet and the flue gas outlet. A blowing hole is formed in the shell, a filter bag is arranged below the blowing hole, a spiral scraping plate device and an ash hopper positioned below the spiral scraping plate device are arranged at the bottom of the shell, the spiral scraping plate device comprises a scraping plate and a spiral conveyor, and flue gas filtered by the filter bag is swept to the ash hopper through the scraping plate and is discharged through the spiral conveyor. According to the utility model, the occupied space can be saved, and dust in the flue gas can be effectively removed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cloth bag dust collector, especially to a cloth bag dust collector for hazardous waste incineration flue gas treatment. BACKGROUND

[0002] The flue gas dust removal equipment commonly used in the field of hazardous waste incineration is a pulse type square cloth bag dust collector. The square cloth bag has high dust removal efficiency, advanced technology and good economy, and is used for trapping high-concentration dust-containing gas, which can play its superiority. However, the square cloth bag dust collector has a large floor space, which has certain limitations for some compact projects. SUMMARY

[0003] In view of the above-mentioned deficiencies of the incinerator at present, the utility model provides a cloth bag dust collector for hazardous waste incineration flue gas treatment, which can save floor space and effectively remove dust in flue gas.

[0004] To achieve the above-mentioned purpose, the embodiment of the utility model adopts the following technical scheme:

[0005] A cloth bag dust collector for hazardous waste incineration flue gas treatment, comprising a shell, wherein the shell is provided with a flue gas inlet and a flue gas outlet, the shell is provided with a clean gas chamber communicated with the flue gas outlet, a plurality of blow pipes are arranged in the clean gas chamber, the lower end of the blow pipe is provided with a blow hole, a filter bag is arranged below the blow hole, a spiral scraper device is arranged at the bottom of the shell, and a dust hopper is arranged below the spiral scraper device, the spiral scraper device comprises a scraper and a spiral conveyor, the flue gas filtered by the filter bag is swept to the dust hopper by the scraper, and the flue gas is discharged by the spiral conveyor.

[0006] According to one aspect of the utility model, the scraper is connected with a bearing box and a speed reducer motor.

[0007] According to one aspect of the utility model, the blow pipe is connected with a solenoid valve and a gas tank.

[0008] According to one aspect of the utility model, the spiral conveyor is connected with a rotary valve.

[0009] According to one aspect of the utility model, the flue gas outlet is arranged on the side wall of the clean gas chamber.

[0010] According to one aspect of the utility model, the shell is in a cylindrical shape.

[0011] According to one aspect of the utility model, the upper part of the shell is provided with a first access door.

[0012] According to one aspect of the utility model, the lower part of the shell is provided with a second access door.

[0013] According to one aspect of the present application, the filter bag is arranged in a spoke shape.

[0014] According to one aspect of the present application, the filter bag is a trapezoidal filter bag.

[0015] The present application has the following advantages: the shell is in a cylindrical shape, which can make full use of space, arrange more cloth bags in unit area, and customize longer cloth bags in the length direction of the cloth bags according to needs; the scraper spiral is used to discharge ash, which greatly saves the space of the ash chute to increase the length of the cloth bags, and improves the space utilization from the height. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 Fig. 1 is a structural schematic view of the present application;

[0018] Figure 2 Fig. 2 is a rear view of the present application;

[0019] Figure 3 Fig. 3 is a structural schematic view of the spiral scraper device of the present application;

[0020] Figure 4 Fig. 4 is a structural schematic view of the clean gas chamber of the present application.

[0021] 1, shell; 11, flue gas inlet; 12, flue gas outlet; 2, clean gas chamber; 3, injection pipe; 31, injection hole; 4, first maintenance door; 5, second maintenance door; 6, filter bag; 7, spiral scraper device; 71, spiral conveyor; 72, scraper; 8, ash chute; 9, ash discharge port. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] Embodiment 1:

[0024] As Figures 1 to 4As shown, a kind of bag filter for hazardous waste incineration flue gas treatment, including shell 1, the shell 1 is equipped with flue gas inlet 11 and flue gas outlet 12, the shell 1 is equipped with clean gas chamber 2 with flue gas outlet 12 communication, the clean gas chamber 2 is equipped with several spray pipes 3, the lower end of the spray pipe 3 is equipped with spray hole 31, the lower side of the spray hole 31 is equipped with filter bag 6, the bottom of the shell 1 is equipped with helical scraper device 7 and ash bucket 8 located below helical scraper device 7, the helical scraper device 7 includes scraper 72 and screw conveyor 71, and the flue gas filtered by filter bag 6 is swept to ash bucket 8 by scraper 72, and is discharged by screw conveyor 71.

[0025] When using, dust-containing gas (flue gas) is entered into the shell 1 from the tangent direction of the flue gas inlet 11, and the airflow is rotated at the helical scraper device 7, under the action of centrifugal force and gravity, the dust with larger particle size is separated and moves downward along the cylinder wall into the ash bucket 8, and the fine dust rises with the airflow, passes through the radiation-shaped trapezoidal filter bag 6, and is blocked outside the filter bag 6; the purified gas passes through the filter bag 6 from above the filter bag 6 and enters the clean gas chamber 2, and is discharged from the flue gas outlet 12.

[0026] In actual application, the scraper 72 is connected with a bearing box and a speed reducer motor. The scraper 72 is uniformly rotated by the speed reducer motor.

[0027] In actual application, the spray pipe 3 is connected with a solenoid valve and an air tank. The spray pipe 3 is controlled by the solenoid valve to spray compressed air and spray shaking.

[0028] In actual application, the screw conveyor 71 is connected with a rotary valve. The screw conveyor 71 is connected with the rotary valve for air locking.

[0029] In actual application, the flue gas outlet 12 is arranged on the side wall of the clean gas chamber 2.

[0030] In actual application, the shell 1 is in a cylindrical shape. The cylindrical shape can make full use of space, arrange more filter bags in unit area, and customize longer filter bags in the length direction of the filter bags as needed.

[0031] In actual application, the upper part of the shell 1 is provided with a first maintenance door 4.

[0032] In actual application, the lower part of the shell 1 is provided with a second maintenance door 5.

[0033] In actual application, the lower end of the ash bucket 8 is connected with a dust discharging port 9. The dust is conveyed to the dust discharging port 9 by the screw conveyor 71.

[0034] The utility model discloses the beneficial effects of: using scraper 72 helical ash, greatly save the space of ash bucket 8 to increase the length of filter bag, and the space utilization is improved from height space.

[0035] Embodiment 2:

[0036] As Figures 1 to 4 shown, a bag filter for hazardous waste incineration flue gas treatment includes a shell 1, the shell 1 is provided with a flue gas inlet 11 and a flue gas outlet 12, the shell 1 is provided with a clean gas chamber 2 communicated with the flue gas outlet 12, the clean gas chamber 2 is provided with a plurality of spray pipes 3, the lower end of the spray pipe 3 is provided with a spray hole 31, the lower side of the spray hole 31 is provided with a filter bag 6, the bottom of the shell 1 is provided with a spiral scraper device 7 and a dust hopper 8 below the spiral scraper device 7, the spiral scraper device 7 includes a scraper 72 and a spiral conveyor 71, the flue gas filtered by the filter bag 6 is swept to the dust hopper 8 by the scraper 72 and is discharged by the spiral conveyor 71, the shell 1 is cylindrical, and the filter bag 6 is arranged in a spoke shape. By using the cylindrical shell 1, more bags can be arranged in a unit area, and the length of the bag can be customized as needed. The filter bag 6 is arranged in a spoke shape, which can make full use of the space and arrange more bags in a unit area.

[0037] In use, the dust-containing gas (flue gas) enters the shell 1 tangentially from the flue gas inlet 11, the airflow rotates at the spiral scraper device 7, and under the action of centrifugal force and gravity, the dust with larger particle size is separated and moves downward along the cylinder wall into the dust hopper 8, while the finer dust rises with the airflow and is filtered by the radially arranged trapezoidal filter bag 6, and the dust is retained outside the filter bag 6; the purified gas passes through the filter bag 6 from above the filter bag 6 into the clean gas chamber 2 and is discharged from the flue gas outlet 12.

[0038] In actual application, the scraper 72 is connected with a bearing box and a speed reducer motor. The scraper 72 is uniformly rotated by the speed reducer motor.

[0039] In actual application, the spray pipe 3 is connected with a solenoid valve and an air tank. The spray pipe 3 is controlled by the solenoid valve to compress air and spray and shake.

[0040] In actual application, the spiral conveyor 71 is connected with a rotary valve. The spiral conveyor 71 is connected with a rotary valve for air locking.

[0041] In actual application, the flue gas outlet 12 is arranged on the side wall of the clean gas chamber 2.

[0042] In actual application, the upper part of the shell 1 is provided with a first access door 4.

[0043] In actual application, the lower part of the shell 1 is provided with a second access door 5.

[0044] In practical application, the filter bag 6 is a trapezoidal filter bag 6. The trapezoidal filter bag 6 makes the flue gas flow uniformly when passing through the filter bag 6, and the flow rate is slowed down.

[0045] In use, the dust-containing gas enters the dust collector from the tangent direction of the gas inlet, and the airflow rotates in the lower cylindrical section. Under the action of centrifugal force and gravity, the dust with larger particle size is separated and moves downward along the cylinder wall into the ash hopper 8, while the fine dust rises with the airflow, passes through the trapezoidal filter bag 6 arranged in a radial manner, and is blocked outside the filter bag 6. The purified gas enters the clean gas chamber 2 from above the filter bag 6 through the filter bag 6, and is discharged from the gas outlet pipe.

[0046] The shell 1 is in a cylindrical shape, which can make full use of space, arrange more cloth bags in unit area, and customize longer cloth bags in the length direction of the cloth bags according to needs; the scraper 72 is used to spiral out the ash, which greatly saves the space of the ash hopper 8 to increase the length of the cloth bags, and improves the space utilization from the height space.

[0047] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A bag filter for hazardous waste incineration flue gas treatment, comprising a shell (1), a flue gas inlet (11) and a flue gas outlet (12) are arranged on the shell (1), characterized in that, The shell (1) is internally provided with a clean gas chamber (2) communicated with a flue gas outlet (12), the clean gas chamber (2) is internally provided with a plurality of injection pipes (3), the lower end of the injection pipe (3) is provided with an injection hole (31), the lower side of the injection hole (31) is provided with a filter bag (6), the bottom of the shell (1) is provided with a spiral scraper device (7) and a dust hopper (8) located below the spiral scraper device (7), the spiral scraper device (7) comprises a scraper (72) and a spiral conveyor (71), the flue gas filtered by the filter bag (6) is swept to the dust hopper (8) by the scraper (72), and is discharged by the spiral conveyor (71).

2. The baghouse filter for hazardous waste incineration flue gas treatment according to claim 1, characterized in that, The scraper (72) is connected with a bearing box and a speed reducer motor.

3. The baghouse filter for hazardous waste incineration flue gas treatment according to claim 1, characterized in that, The injection pipe (3) is connected with a solenoid valve and a gas tank.

4. The baghouse for hazardous waste incineration flue gas treatment according to claim 1, characterized in that, The spiral conveyor (71) is connected with a rotary valve.

5. The baghouse for hazardous waste incineration flue gas treatment according to claim 1, characterized in that, The flue gas outlet (12) is arranged on the side wall of the clean gas chamber (2).

6. The baghouse for hazardous waste incineration flue gas treatment according to claim 3, characterized in that, The shell (1) is in a cylindrical shape.

7. The baghouse for hazardous waste incineration flue gas treatment according to claim 1, characterized in that, The upper part of the shell (1) is provided with a first access door (4).

8. The baghouse for hazardous waste incineration flue gas treatment according to claim 1, characterized in that, The lower part of the shell (1) is provided with a second access door (5).

9. The baghouse for hazardous waste incineration flue gas treatment according to any one of claims 1 to 8, characterized in that, The filter bag (6) is arranged in a spoke shape.

10. The baghouse for hazardous waste incineration flue gas treatment according to claim 9, characterized in that, The filter bag (6) is a trapezoidal filter bag (6).

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