Dust and flue gas filtering equipment for waste liquid incineration treatment

Abstract

The utility model relates to the technical field of waste liquid incineration treatment, in particular to dust and smoke filtering equipment for waste liquid incineration treatment, which comprises a tank body, a mounting cavity and a filtering cavity which are distributed up and down are arranged in the tank body, and a smoke inlet pipe communicated with the filtering cavity is arranged on the outer tank wall of the tank body. The outer tank wall of the tank body is further provided with a smoke exhaust pipe communicated with the mounting cavity, in the filtering and dust removing stage, the contact frequency of the multiple filter cartridges and smoke dust is increased, and therefore the filtering and dust removing effect of the filter cartridges is improved, in the blowing and dust discharging stage, when the rotating pipes drive the multiple filter cartridges to rotate and touch the blocking strips, the filter cartridges can rotate relative to the corresponding rotating pipes, and the dust removing effect is improved. When the filter cartridge rotates to leave from the barrier strip, the torsional spring elastically recovers to enable the filter cartridge to reset again, the process is continuously carried out, high-frequency vibration of the filter cartridge is achieved, and the injection ash discharge effect is improved in cooperation with injection from inside to outside in the filter cartridge.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid incineration treatment, in particular to dust and fume filtering equipment for waste liquid incineration treatment. Background Art

[0002] A large amount of flue gas will be generated during the incineration of waste liquid, and a large amount of dust will be mixed in the flue gas. Therefore, it is necessary to use filtering equipment to filter and collect the dust in the flue gas.

[0003] The bag dust collector is a traditional dust and flue gas filtration equipment used for waste liquid incineration. Its working principle is that when the flue gas passes through the filter bag from the outside, the dust in the flue gas is trapped on the outer surface of the filter bag, thereby being purified, and then enters the upper box through the venturi tube in the dust collector and is discharged from the outlet. The dust attached to the outer surface of the filter bag continues to increase, which increases the resistance of the dust collector. In order to maintain the equipment resistance within a limited range, the dust attached to the surface of the filter bag must be regularly eliminated: the controller triggers each control valve to open the pulse valve in a regular sequence, so that the compressed air in the air bag is ejected from the hole of the injection pipe (called primary air), and through the venturi, it induces the surrounding air (called secondary air) that is several times the primary air to enter the filter bag, causing the filter bag to expand rapidly in an instant, and accompanied by the reverse action of the airflow, the dust is shaken off. The shaken dust falls into the ash hopper, is discharged through the ash discharge mechanism, and is transported outside for solidification and landfill.

[0004] Since the filter bags are fixed in design, during the filtering and dust removal stage, the frequency of contact between the filter bags and several filter bags entering the tank body is low, which reduces the filtering and dust removal efficiency of the filter bags. During the spraying and dust removal stage, the dust mixed in the flue gas fills some of the mesh holes on the surface of the filter bags, making it difficult to blow the dust off the filter holes in these areas, thereby reducing the spraying and dust removal effect. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a dust and fume filtering device for waste liquid incineration treatment, which can effectively solve the problems raised in the background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a dust and smoke filtering device for waste liquid incineration treatment, comprising a tank body, wherein an installation cavity and a filter cavity distributed up and down are provided in the tank body, a smoke inlet pipe connected to the filter cavity is installed on the outer tank wall of the tank body, and a smoke exhaust pipe connected to the installation cavity is also installed on the outer tank wall of the tank body, the filter assembly comprises a rotating tube that is simultaneously rotatably installed in the installation cavity and the filter cavity, a plurality of filter cartridges connected to the inner cavity of the rotating tube are twisted at the bottom of the rotating tube, and the top of the filter cartridge is connected to the smoke exhaust pipe, the spray assembly comprises a high-pressure air pump installed on the outer tank wall of the tank body, and the output end is connected to the inner cavity of the rotating tube, and the toggle assembly comprises a baffle that is telescopically slidably installed in the filter cavity and abuts against the plurality of filter cartridges.

[0008] Furthermore, a partition is installed in the tank body, which divides the tank body cavity into an installation cavity and a filter cavity. A cylinder is fixedly installed on the top of the partition, and a first solenoid valve is provided at the connection between the cylinder and the output end of the high-pressure air pump.

[0009] Furthermore, a second solenoid valve is installed at the connection point between the cylinder and the smoke exhaust pipe, and two brackets arranged in parallel are installed at the bottom end of the tank body.

[0010] Furthermore, an ash collecting hopper connected to the filter chamber is installed at the bottom of the tank body, an ash discharge pipe is provided at the bottom of the ash collecting hopper, and a third solenoid valve is provided in the ash discharge pipe.

[0011] Furthermore, the filter assembly also includes a motor fixedly mounted on the top of the tank body, the top of the rotating tube passes through the partition and the cylinder and is connected to the output end of the motor, and the outer tube wall of the rotating tube passes through the inner cavity and is provided with a plurality of through holes connected to the inner cavity of the cylinder.

[0012] Furthermore, several fixing seats arranged in parallel up and down are vertically fixedly installed on the outer tube wall of the rotating tube, several ends of the filter cartridges are fixedly connected with bent pipes, and several ends of the bent pipes away from the corresponding filter cartridges are equipped with limiting rings rotatably installed in the fixing seats.

[0013] Furthermore, a torsion spring is installed between the outer ring wall of the limiting ring and the corresponding inner cavity wall of the fixing seat, and the plurality of filter cartridges are connected to the inner cavity of the rotating tube through the bent pipe, the limiting ring and the fixing seat.

[0014] Furthermore, the toggle assembly further includes a telescopic cylinder fixedly mounted on the tank body, the output end of the telescopic cylinder extends through the filter cavity and is fixedly connected to the baffle.

[0015] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0016] 1. The filter cartridges for dust filtration are designed to be rotatable. During the dust removal stage, the frequency of contact between the filter cartridges and the dust is increased, thereby improving the dust removal effect of the filter cartridges.

[0017] 2. A retractable and sliding baffle is set in the filter chamber. During the spraying and dust removal stage, the baffle is extended and set on the rotation path of several filter cartridges, and the filter cartridges are twisted to rotate relative to the rotating tube. Therefore, when the rotating tube drives several filter cartridges to rotate and touch the baffle, the filter cartridge and the corresponding rotating tube will rotate relative to each other, causing the corresponding torsion spring to deform and obtain elastic rewinding force. When the filter cartridge rotates away from the baffle, the torsion spring elastically recovers and resets the filter cartridge. The above process is carried out continuously to achieve high-frequency vibration of the filter cartridge, and cooperate with the inside-out spraying in the filter cartridge to improve the spraying and dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the filter assembly and the toggle assembly of the present utility model;

[0021] Figure 3 This is a schematic diagram of the filter assembly and cylinder installation structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the filter cartridge installation structure of the present invention.

[0023] The numbers in the figure represent:

[0024] 1. Tank body; 11. Partition; 12. Cylinder; 13. First solenoid valve; 14. Second solenoid valve; 15. High-pressure air pump; 16. Smoke inlet pipe; 17. Smoke outlet pipe; 18. Bracket;

[0025] 2. Ash collecting hopper; 21. Ash discharge pipe; 22. Third solenoid valve;

[0026] 31. Motor; 32. Rotating tube; 33. Fixed seat; 34. Filter cartridge; 35. Bend tube; 36. Limiting ring; 37. Torsion spring;

[0027] 41. Telescopic cylinder; 42. Telescopic rod; 43. Stop bar. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] Example 1

[0031] Reference Figure 1-4 , which is the first embodiment of the utility model, discloses a dust and smoke filtering device for waste liquid incineration treatment, including a tank body 1, wherein the tank body 1 is provided with an installation cavity and a filter cavity distributed up and down, a smoke inlet pipe 16 connected to the filter cavity is installed on the outer wall of the tank body 1, and a smoke exhaust pipe 17 connected to the installation cavity is also installed on the outer wall of the tank body 1, and the filter assembly includes a rotating tube 32 that is simultaneously rotatably installed in the installation cavity and the filter cavity, and a plurality of filter cartridges 34 connected to the inner cavity of the rotating tube 32 are twisted at the bottom of the rotating tube 32, and the top of the filter cartridge 34 is connected to the inner cavity of the rotating tube 32. It is connected to the smoke exhaust pipe 17, and the blowing assembly includes a high-pressure air pump 15 installed on the outer wall of the tank body 1, and the output end is connected to the inner cavity of the rotating tube 32. The toggle assembly also includes a telescopic cylinder 41 fixedly mounted on the tank body 1, and the output end of the telescopic cylinder 41 is connected to a telescopic rod 42 that penetrates and extends into the filter cavity. The telescopic rod 42 is fixedly connected to the baffle 43, and several filter cartridges 34 are in conflict with the baffle 43. Several filter cartridges 34 are distributed in an equidistant circular shape about the rotating tube 32, so all filter cartridges 34 will contact the rotating tube 32.

[0032] Example 2

[0033] Reference Figure 1-4, which is the second embodiment of the present utility model. This embodiment is different from the first embodiment in that: a partition 11 is installed in the tank body 1, and the partition 11 divides the inner cavity of the tank body 1 into an installation cavity and a filter cavity. A cylinder 12 is fixedly installed on the top of the partition 11. The inner diameter of the cylinder 12 is larger than the outer diameter of the rotating tube 32. A first solenoid valve 13 is provided at the connection between the cylinder 12 and the output end of the high-pressure air pump 15, and a second solenoid valve 14 is provided at the connection between the cylinder 12 and the flue gas exhaust pipe 17. Two brackets 18 are installed in parallel at the bottom end of the tank body 1. A dust collecting hopper 2 connected to the filter cavity is installed at the bottom of the tank body 1, and an ash discharge pipe 21 is provided at the bottom of the ash collecting hopper 2. A third solenoid valve 22 is provided in the ash discharge pipe 21. In the blowing and ash discharge stage, the third solenoid valve 22 is opened, and the dust attached to the filter cartridge 34 is blown from the inside out, and falls down due to external vibration, is concentrated in the ash collecting hopper 2, and is discharged uniformly from the ash discharge pipe 21.

[0034] The filter assembly also includes a motor 31 fixedly mounted on the top of the tank body 1, the top of the rotating tube 32 passes through the partition 11 and the cylinder 12 and is connected to the output end of the motor 31, the outer tube wall of the rotating tube 32 passes through the inner cavity and has a number of through holes that are connected to the inner cavity of the cylinder 12, the outer tube wall of the rotating tube 32 is vertically fixed with a number of fixed seats 33 arranged in parallel up and down, a number of filter cartridges 34 are fixedly connected with a bent pipe 35 at both ends, a number of bent pipes 35 away from the corresponding filter cartridge 34 are installed with a limit ring 36 rotatably mounted in the fixed seat 33, a number of fixed seats 33 are provided with a limit groove for facilitating the rotational installation of the limit ring 36, a torsion spring 37 is installed between the outer ring wall of the limit ring 36 and the inner cavity wall of the corresponding fixed seat 33, and a number of filter cartridges 34 are connected to the inner cavity of the rotating tube 32 through the bent pipe 35, the limit ring 36 and the fixed seat 33.

[0035] The remaining structures are the same as those of Example 1.

[0036] The workflow of this utility model is as follows:

[0037] During the filtration and dust removal stage, the first solenoid valve 13 and the third solenoid valve 22 are closed, and the smoke enters the filter chamber through the smoke inlet pipe 16. At the same time, the motor 31 is started to rotate the rotating pipe 32, thereby driving the plurality of filter cartridges 34 to rotate. By increasing the contact frequency between the filter cartridges 34 and the smoke, the filtration and dust removal effect of the smoke is improved. The smoke in the smoke passes through the filter holes on the surface of the filter cartridges 34, and enters the rotating pipe 32 through the corresponding elbow 35, the limit ring 36, and the fixing seat 33. It then enters the cylinder 12 through the plurality of through holes on the rotating pipe 32 and is finally discharged from the smoke exhaust pipe 17. The dust is intercepted and adheres to the surface of the filter cartridges 34.

[0038] During the dust removal stage, the first solenoid valve 13 and the third solenoid valve 22 are opened, and the second solenoid valve 14 and the inner cavity of the smoke exhaust pipe 17 are closed. At this time, high-pressure air is sprayed into the cylinder 12 through the high-pressure air pump 15. This high-pressure air enters the rotating tube 32 through the plurality of through holes, and enters the plurality of filter cartridges 34 through the fixing seat 33, the limiting ring 36, and the bent pipe 35, thereby blowing out the dust attached to the surface of the filter cartridges 34 from the inside out. At the same time, the rotation of the rotating tube 32 and the plurality of filter cartridges 34 is maintained, and the telescopic cylinder 41 is started. The baffle 43 is pushed by the telescopic rod 42 so that the baffle 43 is set on the rotation path of the plurality of filter cartridges 34. When the rotating tube 32 drives the plurality of filter cartridges 34 to rotate and touch the baffle 43, the filter cartridges 34 and the corresponding rotating tube 32 will rotate relative to each other, causing the corresponding torsion spring 37 to deform and obtain an elastic rewinding force. When the filter cartridge 34 rotates away from the baffle 43, the torsion spring 37 elastically recovers and resets the filter cartridge 34. The above process is carried out continuously to achieve high-frequency vibration of the filter cartridge 34, and cooperate with the blowing from the inside out of the filter cartridge 34 to improve the ash removal effect of the blowing.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dust and smoke filtering device for waste liquid incineration treatment, comprising a tank body (1), wherein the tank body (1) is provided with an installation cavity and a filter cavity distributed up and down, a smoke inlet pipe (16) connected to the filter cavity is installed on the outer tank wall of the tank body (1), and a smoke exhaust pipe (17) connected to the installation cavity is also installed on the outer tank wall of the tank body (1), characterized in that: Also includes: A filter assembly comprises a rotating tube (32) that is simultaneously rotatably mounted in a mounting cavity and a filter cavity, wherein a plurality of filter cartridges (34) that are in communication with the inner cavity of the rotating tube (32) are twisted at the bottom of the rotating tube (32), and the top of the filter cartridges (34) is in communication with a smoke exhaust pipe (17); A blowing assembly includes a high-pressure air pump (15) mounted on the outer wall of the tank body (1) and having an output end connected to the inner cavity of the rotating tube (32); The toggle assembly includes a retaining bar (43) which is telescopically and slidably mounted in the filter cavity and abuts against a plurality of filter cartridges (34).

2. The dust and fume filtration equipment for waste liquid incineration according to claim 1 is characterized in that: A partition (11) is installed in the tank body (1), and the partition (11) divides the inner cavity of the tank body (1) into a mounting cavity and a filter cavity. A cylinder (12) is fixedly installed on the top of the partition (11), and a first solenoid valve (13) is provided at the connection point between the cylinder (12) and the output end of the high-pressure air pump (15).

3. The dust and fume filtering equipment for waste liquid incineration according to claim 2 is characterized in that: A second solenoid valve (14) is installed at the connection point between the cylinder (12) and the smoke exhaust pipe (17), and two brackets (18) arranged in parallel are installed at the bottom end of the tank body (1).

4. The dust and fume filtering equipment for waste liquid incineration according to claim 1 is characterized in that: An ash collecting hopper (2) communicating with the filter chamber is installed at the bottom of the tank body (1), an ash discharge pipe (21) is provided at the bottom of the ash collecting hopper (2), and a third solenoid valve (22) is provided in the ash discharge pipe (21).

5. The dust and fume filtering equipment for waste liquid incineration treatment according to claim 2 is characterized in that: The filter assembly further comprises a motor (31) fixedly mounted on the top of the tank body (1); the top of the rotating tube (32) passes through the partition (11) and the cylinder (12) and is connected to the output end of the motor (31); the outer tube wall of the rotating tube (32) passes through the inner cavity and is provided with a plurality of through holes communicating with the inner cavity of the cylinder (12).

6. The dust and fume filtering equipment for waste liquid incineration according to claim 1 is characterized in that: A plurality of fixed seats (33) arranged in parallel up and down are vertically fixedly mounted on the outer tube wall of the rotating tube (32), and both ends of the plurality of filter cartridges (34) are fixedly connected to a bent tube (35), and one end of the plurality of bent tubes (35) away from the corresponding filter cartridge (34) is equipped with a limiting ring (36) rotatably mounted in the fixed seat (33).

7. The dust and fume filtering equipment for waste liquid incineration according to claim 6 is characterized in that: A torsion spring (37) is installed between the outer ring wall of the limiting ring (36) and the inner wall of the corresponding fixing seat (33), and the plurality of filter cartridges (34) are connected to the inner cavity of the rotating tube (32) through the bent pipe (35), the limiting ring (36), and the fixing seat (33).

8. The dust and fume filtering equipment for waste liquid incineration according to claim 1 is characterized in that: The toggle assembly further comprises a telescopic cylinder (41) fixedly mounted on the tank body (1); the output end of the telescopic cylinder (41) is connected to a telescopic rod (42) extending through the filter cavity; the telescopic rod (42) is fixedly connected to a stop bar (43).

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