Spraying and cooling mechanism for dust removal filter element

Abstract

The spraying and cooling mechanism comprises a machine body, and the circumferential inner wall, close to the top end, of the machine body is fixedly connected with a filter element body; a liquid cavity is reserved in the inner wall of the bottom of the machine body, the inner wall of the bottom of the liquid cavity is in an inverted cone shape, and a pre-cooling structure is arranged in the liquid cavity; a self-adaptive cooling assembly is arranged in the machine body above the liquid cavity; an auxiliary dehumidification component is arranged on the circumferential inner wall of the machine body and comprises a conical cover fixed to the circumferential inner wall of the machine body through a connecting block, a conical top cover fixedly connected to the top face of the conical cover through a supporting column and a through opening formed in the top end of the conical cover, and the vertical distance between the conical top cover and the conical cover ranges from 1 cm to 3 cm; the pre-cooling structure comprises a spiral conveying pipe fixedly connected to the inner wall of the bottom of the liquid cavity. According to the utility model, the dust-containing gas is effectively dehumidified, and the moisture-containing gas is prevented from entering the filter element body to be filtered, so that the dust removal efficiency of the filter element is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a dust removal filter element spray cooling mechanism. Background Technology

[0002] In industrial dust removal systems, dust collector filter elements are exposed to high-temperature flue gas environments for extended periods, especially in metallurgy, chemical, and incineration industries, where flue gas temperatures can exceed 200°C. This causes filter element materials to age, deform, or even burn out, severely impacting dust removal efficiency and service life. To address the overheating problem of dust collector filter elements in high-temperature environments, methods such as air cooling and water cooling are required to lower their temperature.

[0003] Chinese patent application CN202320012157.0 discloses an automatic spray cooling mechanism for dust collector filters. Its main components include a pressurized spray water tank, a spray solenoid valve, a temperature sensor, a main spray pipe, several spray branch pipes, and four sets of dust collector filters. The pressurized spray water tank has a water inlet on one side, a pressurization port in the middle, and a spray outlet pipe on the other side. The automatic spray cooling mechanism for dust collector filters in the aforementioned patent has the following shortcomings: water vapor and dust easily combine to form sticky substances that adhere to the filter surface or pores, leading to reduced air permeability, increased filtration resistance, and ultimately a decrease in the dust removal efficiency of the filter. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dust removal filter element spray cooling mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dust removal filter element spray cooling mechanism includes a body, wherein a filter element body is fixedly connected to the inner circumference of the body near the top; a liquid chamber is provided on the bottom inner wall of the body, the bottom inner wall of the liquid chamber is inverted cone shape, and a pre-cooling structure is provided inside the liquid chamber.

[0007] An adaptive cooling component is installed inside the body located above the liquid chamber;

[0008] The inner circumference of the machine body is provided with an auxiliary dehumidification component, which includes a conical cover fixed to the inner circumference of the machine body by a connecting block, a conical top cover fixed to the top surface of the conical cover by a support column, and an opening at the top of the conical cover. The vertical distance between the conical top cover and the conical cover is 1-3cm.

[0009] As a further embodiment of this utility model: the precooling structure includes a spiral conveying pipe fixedly connected to the inner wall of the bottom of the liquid chamber, a straight pipe fixedly connected to one end of the spiral conveying pipe, and one end of the spiral conveying pipe is connected to the dust inlet through a conduit.

[0010] As a further improvement of this utility model: a buffer box is fixedly connected to the top end of the straight tube, and an opening is provided on the outer circumference of the buffer box.

[0011] As a further embodiment of this utility model: the adaptive cooling component includes an annular infusion tube connected to the inner wall of the machine body via a support plate, two or more atomizing nozzles fixedly connected to the outer wall of the annular infusion tube in an annular array, a temperature sensor fixedly connected to the inner wall of the buffer box, and the inlet end of the annular infusion tube is connected to the infusion end of a water pump fixedly connected to the outer wall of the machine body via a conduit.

[0012] As a further embodiment of this utility model: the bottom surface of the water pump is fixed to the outer circumference of the machine body by a mounting plate, the inlet end of the water pump is fixedly connected to an inlet conduit that penetrates the outer circumference of the machine body, and the inner circumference of the liquid chamber is fixedly connected to a filter cover that surrounds the inlet conduit.

[0013] As a further improvement of this utility model, a dust inlet is fixedly connected to the outer circumferential wall of the machine body.

[0014] As a further embodiment of this utility model: a maintenance plate is fixedly connected to the top of the machine body, an exhaust port is provided on the top outer wall of the maintenance plate, and an exhaust fan mechanism is fixedly connected to the bottom inner wall of the maintenance plate.

[0015] As a further improvement of this utility model: a drain port is fixedly connected to the bottom outer wall of the machine body, and a cover is connected to the bottom inner wall of the drain port by a thread.

[0016] Compared with the prior art, this utility model provides a dust removal filter element spray cooling mechanism, which has the following beneficial effects:

[0017] 1. The dust collector filter element spray cooling mechanism is equipped with an auxiliary dehumidification component. After spray cooling, the gas rises under negative pressure, passes through the double-layer structure composed of a conical hood and a conical top hood, and then dissipates from the gap between the conical top hood and the conical hood. When most of the humid gas comes into contact with the bottom surface of the conical hood and the conical top hood in sequence, water molecules adhere to their walls and slide down under centrifugal force, and fall back into the liquid chamber through the inner circumference of the machine body. This can effectively dehumidify the dust-laden gas and prevent the humid gas from entering the filter element body for filtration, which would reduce its dust removal efficiency.

[0018] 2. The dust removal filter element spray cooling mechanism is equipped with a pre-cooling structure. Gas containing dust and smoke is introduced through the dust inlet, conveyed along the spiral conveying pipe and straight pipe to the buffer box, and discharged through the opening to spread into the machine body. Since the spiral conveying pipe is set inside the liquid chamber and covered by liquid, and the conveying path is extended, the gas can achieve effective preliminary cooling through this conveying path.

[0019] 3. The dust collector filter element spray cooling mechanism is equipped with an adaptive cooling component. A temperature sensor monitors the temperature change of the gas passing through the buffer box in real time. If the temperature exceeds a set threshold range, it transmits a signal to the control module, which then operates the water pump to draw clean water filtered through the filter cover into the annular infusion pipe. The water is then sprayed downwards through atomizing nozzles, thereby cooling the hot gas that is dispersed from the opening. This structure controls the start and stop of the spraying operation based on the real-time temperature change of the gas, avoiding over-spraying and thus saving energy. Attached Figure Description

[0020] Figure 1 This is a top view cross-sectional structural diagram of a dust removal filter element spray cooling mechanism proposed in this utility model;

[0021] Figure 2 This is a front cross-sectional view of a dust removal filter element spray cooling mechanism proposed in this utility model.

[0022] Figure 3 This is a rear view schematic diagram of a dust removal filter element spray cooling mechanism proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the buffer box structure of a dust removal filter element spray cooling mechanism proposed in this utility model.

[0024] In the diagram: 1. Body, 2. Dust inlet, 3. Spiral conveying pipe, 301. Straight pipe, 4. Conical cover, 401. Conical top cover, 402. Through port, 5. Inspection plate, 6. Exhaust port, 7. Filter element body, 8. Annular infusion pipe, 801. Atomizing nozzle, 9. Buffer box, 901. Opening, 10. Filter cover, 11. Liquid chamber, 12. Drain outlet, 1201. Cover, 13. Exhaust fan mechanism, 14. Water pump, 15. Temperature sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] A dust collector filter element spray cooling mechanism, such as Figure 1-4 As shown, the device includes a body 1, with a dust inlet 2 fixed to the outer circumference of the body 1 near the bottom by bolts; a liquid chamber 11 is provided on the inner bottom wall of the body 1, and a pre-cooling structure is provided inside the liquid chamber 11. The pre-cooling structure includes a spiral conveying pipe 3 fixed to the inner bottom wall of the liquid chamber 11 by bolts, and a straight pipe 301 welded to one end of the spiral conveying pipe 3, and one end of the spiral conveying pipe 3 is connected to the dust inlet 2 through a conduit.

[0029] Preferably, both the spiral conveying pipe 3 and the straight pipe 301 are made of stainless steel, which has a certain strength;

[0030] Furthermore, the top end of the straight pipe 301 is fixed with a buffer box 9 by bolts. The outer circumferential wall of the buffer box 9 is provided with multiple openings 901 to facilitate gas discharge. Gas containing dust and smoke is introduced through the dust inlet 2, and transported along the spiral conveying pipe 3 and the straight pipe 301 to the buffer box 9, and discharged through the openings 901 to spread into the interior of the machine body 1. Since the spiral conveying pipe 3 is located inside the liquid chamber 11 and is covered by liquid, and the conveying path is extended, the gas can achieve effective initial cooling through this conveying path.

[0031] Preferably, the buffer box 9 is made of a heat-conducting metal material, such as silver, copper, or aluminum; the buffer box 9 is located above the liquid level line of the liquid chamber 11.

[0032] The bottom inner wall of the liquid chamber 11 is inverted cone shape; the bottom outer wall of the body 1 is fixed with a drain port 12 by bolts, and the bottom inner wall of the drain port 12 is connected with a cover 1201 by threads; the large water droplets that have been sprayed and cooled will fall back into the liquid chamber 11 under the action of centrifugal force and gather at the bottom, and can automatically follow the bottom inner wall of the inverted cone-shaped liquid chamber 11 to gather at the bottom. Later, the cover 1201 can be unscrewed to perform sewage discharge and other work.

[0033] The filter element body 7 is fixed to the inner circumference of the body 1 near the top by bolts; the top of the body 1 is fixed to the inspection plate 5 by bolts, the top outer wall of the inspection plate 5 is provided with an exhaust port 6, and the bottom inner wall of the inspection plate 5 is fixed to the exhaust fan mechanism 13 corresponding to the exhaust port 6 by bolts. Preferably, in this embodiment, the exhaust fan mechanism 13 refers to the prior art, which will not be described in detail here; during operation, the exhaust fan mechanism 13 is activated to use the generated negative pressure to make the dust-laden gas rise, and after being filtered by the filter element body 7, it is discharged from the exhaust port 6.

[0034] Furthermore, an adaptive cooling component is provided inside the body 1 located above the liquid chamber 11. The adaptive cooling component includes an annular infusion tube 8 connected to the inner circumference of the body 1 via a support plate, multiple atomizing nozzles 801 arranged in an annular array and fixed to the outer circumference of the annular infusion tube 8 (facing downwards) by bolts, and a temperature sensor 15 fixed to the inner circumference of the buffer box 9 by bolts. The inlet end of the annular infusion tube 8 is connected to the infusion end of a water pump 14 fixedly connected to the outer circumference of the body 1 via a conduit.

[0035] Preferably, both the temperature sensor 15 and the water pump 14 are electrically connected to the control module;

[0036] As a supplement, the bottom surface of the water pump 14 is fixed to the outer circumferential wall of the body 1 by a mounting plate, and the inlet end of the water pump 14 is fixed with an inlet conduit that penetrates the outer circumferential wall of the body 1 by bolts. The inner circumferential wall of the liquid chamber 11 is fixed with a filter cover 10 that surrounds the inlet conduit by bolts. The filter cover 10 can filter water molecules containing solid impurities that fall into the liquid chamber 11, thereby preventing the atomizing nozzle 801 from becoming clogged during use.

[0037] Temperature sensor 15 monitors the temperature change of the gas passing through buffer box 9 in real time. If the temperature exceeds the set threshold range, it transmits a signal to the control module so that the control module can operate water pump 14 to draw clean water filtered by filter cover 10 into the annular infusion pipe 8 and spray it downward through atomizing nozzle 801, thereby cooling the hot gas dispersed from opening 901. This structure is designed to control the start and stop of the spraying operation based on the real-time temperature change of the gas, avoiding over-spraying and saving energy.

[0038] Working principle: During operation, the exhaust fan mechanism 13 is activated, using the generated negative pressure to cause dust-laden gas to rise, be filtered by the filter element body 7, and then discharged from the exhaust port 6. Specifically: Gas containing dust and fumes is introduced through the dust inlet 2, conveyed along the spiral conveyor pipe 3 and straight pipe 301 to the buffer box 9, and then discharged through the opening 901 into the interior of the machine body 1. The temperature sensor 15 monitors the temperature change of the gas passing through the buffer box 9 in real time. If it exceeds the set threshold range, it transmits a signal to the control module so that it can operate the water pump 14 to draw clean water filtered by the filter cover 10 into the annular infusion pipe 8, and spray it downwards through the atomizing nozzle 801, thereby cooling the high-heat gas dispersed from the opening 901. The large water droplets cooled by the spray will fall back into the liquid chamber 11 under the action of centrifugal force and automatically accumulate at the bottom of the inverted cone-shaped liquid chamber 11. Later, the baffle cover 1201 can be opened for sewage discharge and other work.

[0039] Example 2

[0040] A dust collector filter element spray cooling mechanism, such as Figure 1-2 As shown, to prevent humid gas from entering the filter body 7, this embodiment makes the following improvements based on embodiment 1: an auxiliary dehumidification component is provided on the inner circumference of the body 1 located between the filter body 7 and the annular infusion tube 8. The auxiliary dehumidification component includes a conical cover 4 fixed to the inner circumference of the body 1 by a connecting block, a conical top cover 401 fixed to the top surface of the conical cover 4 by a support column, and a through 402 opened at the top of the conical cover 4. The vertical distance between the conical top cover 401 and the conical cover 4 is 1-3 cm.

[0041] Preferably, the conical hood 4 is isolated from the inner circumferential wall of the body 1 by a connecting block and does not directly contact it. The gas cooled by spraying rises under negative pressure, passes through the double-layer structure composed of the conical hood 4 and the conical top hood 401, and then dissipates from the gap between the conical top hood 401 and the conical hood 4. When most of the humid gas comes into contact with the bottom surface of the conical hood 4 and the conical top hood 401 in sequence, water molecules will adhere to their wall surface and slide down under the action of centrifugal force, and fall back into the liquid chamber 11 through the inner circumferential wall of the body 1. This can achieve effective dehumidification of the dust-laden gas and prevent the humid gas from entering the filter body 7 for filtration, which would reduce its dust removal efficiency.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust removal filter element spray cooling mechanism comprising a machine body (1), characterized in that, The filter core body (7) is fixedly connected to the inner wall of the circumference of the top end of the machine body (1); the bottom inner wall of the liquid cavity (11) is in an inverted conical shape, and the inside of the liquid cavity (11) is provided with a pre-cooling structure; The inside of the machine body (1) above the liquid cavity (11) is provided with a self-adaptive cooling assembly; The inner wall of the circumference of the machine body (1) is provided with an auxiliary dehumidification part, which comprises a conical cover (4) fixed to the inner wall of the circumference of the machine body (1) through a connecting block, a conical top cover (401) fixedly connected to the top surface of the conical cover (4) through a support column, and a through hole (402) provided at the top end of the conical cover (4), and the distance between the conical top cover (401) and the conical cover (4) is 1-3 cm.

2. The dust removal filter core spray cooling mechanism according to claim 1, characterized in that, The pre-cooling structure comprises a spiral conveying pipe (3) fixedly connected to the bottom inner wall of the liquid cavity (11), and a straight pipe (301) fixedly connected to one end of the spiral conveying pipe (3), and one end of the spiral conveying pipe (3) is connected to the dust inlet (2) through a conduit.

3. The dust removal filter core spray cooling mechanism according to claim 2, characterized in that, The top end of the straight pipe (301) is fixedly connected with a buffer box (9), and the circumferential outer wall of the buffer box (9) is provided with an opening (901).

4. The dust removal filter core spray cooling mechanism according to claim 3, characterized in that, The self-adaptive cooling assembly comprises an annular infusion pipe (8) connected to the inner wall of the circumference of the machine body (1) through a support plate, two or more than two atomizing nozzles (801) fixedly connected to the outer wall of the circumference of the annular infusion pipe (8) in an annular array, a temperature sensor (15) fixedly connected to the inner wall of the circumference of the buffer box (9), and the liquid inlet end of the annular infusion pipe (8) is connected to the liquid outlet end of the water pump (14) fixedly connected to the outer wall of the circumference of the machine body (1) through a conduit.

5. The dust removal filter core spray cooling mechanism according to claim 4, characterized in that, The bottom surface of the water pump (14) is fixed to the outer wall of the circumference of the machine body (1) through a mounting plate, the liquid inlet end of the water pump (14) is fixedly connected with a liquid inlet conduit penetrating through the outer wall of the circumference of the machine body (1), and the inner wall of the circumference of the liquid cavity (11) is fixedly connected with a filter cover (10) surrounding the liquid inlet conduit.

6. The dust removal filter core spray cooling mechanism according to claim 1, characterized in that, The outer wall of the circumference of the machine body (1) is fixedly connected with a dust inlet (2).

7. The dust removal filter core spray cooling mechanism according to claim 6, characterized in that, The top end of the machine body (1) is fixedly connected with an inspection plate (5), the top outer wall of the inspection plate (5) is provided with an exhaust port (6), and the bottom inner wall of the inspection plate (5) is fixedly connected with an exhaust fan mechanism (13).

8. The dust removal filter core spray cooling mechanism according to claim 7, characterized in that, The bottom outer wall of the machine body (1) is fixedly connected with a blowdown port (12), and the bottom inner wall of the blowdown port (12) is threadedly connected with a cover (1201).

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