Flue gas cooling and dust removing device

Abstract

The utility model relates to the technical field of flue gas treatment devices, and discloses a flue gas cooling and dedusting device which is characterized in that a flue gas cooling unit is arranged at the left end in a box body and adopts a spiral heat absorption pipeline; a spraying assembly is arranged at the right end in the box body; a treatment box communicated with the box body is arranged at the right end of the lower end face of the box body, a filter screen is arranged at the upper end of the treatment box, a sludge discharge pipe communicated with the treatment box is arranged at the lower end of the side face of the treatment box, and a sludge discharge assembly is arranged at the lower end of the treatment box; a water supply assembly is arranged on the side face of the treatment box and conveys filtered spraying water to the spraying assembly. The device has the advantages that heat energy in flue gas is effectively utilized, and the cooling and dust removing effects are good.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment devices, in particular to a flue gas cooling and dust removal device. Background Art

[0002] Flue gas is a mixture of gas and smoke, and is the main cause of air pollution in residential areas. The composition of flue gas is very complex. The gas includes water vapor, SO2, N2, O2, CO, CO2 hydrocarbons and nitrogen oxides, and the smoke includes fuel ash, coal particles, oil droplets and high-temperature cracking products. After the flue gas comes out of the high-temperature kiln, the temperature is relatively high, generally above 200°C. If the dust in the flue gas is not filtered, direct emission will cause environmental pollution, so it is necessary to use a treatment device to effectively treat the flue gas.

[0003] The existing treatment device cools down and removes dust by spraying, but it still has the following disadvantages:

[0004] 1. Cooling the flue gas by spraying causes the heat energy in the flue gas to be wasted;

[0005] 2. When the dust in the flue gas is treated by spraying, the wastewater containing dust cannot be treated. Utility Model Content

[0006] 1. Technical Problems Solved

[0007] The technical problem to be solved by the utility model is that the existing flue gas treatment device cannot effectively utilize the heat energy in the flue gas, and the spray water containing dust cannot be effectively treated.

[0008] 2. Technical Solution

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions: a flue gas cooling and dust removal device, comprising a box body, wherein the left and right ends of the box body are respectively provided with an air inlet pipe and an air outlet pipe connected thereto,

[0010] A flue gas cooling unit is provided at the left end of the box body, and the flue gas cooling unit adopts a heat absorbing pipe, the heat absorbing pipe is spiral-shaped, and both ends of the heat absorbing pipe are exposed from the box body;

[0011] A spray assembly is provided at the right end of the box body, and the spray assembly sprays dust removal and cools the passing flue gas;

[0012] The right end of the lower end surface of the box body is provided with a processing box connected thereto, the upper end of the processing box is provided with a filter screen, the lower end of the side surface of the processing box is provided with a mud discharge pipe connected thereto, and the lower end of the processing box is provided with a mud discharge assembly;

[0013] The sludge discharge assembly includes a motor and a feeding screw. A motor is provided on the side of the treatment box opposite to the sludge discharge pipe. The lower end of the treatment box is rotatably connected to the feeding screw. Guide blocks are provided on both sides of the feeding screw. The motor drives the feeding screw to rotate and discharge the precipitated sludge through the sludge discharge pipe.

[0014] A water supply component is provided on the side of the processing box, and the water supply component delivers the filtered spray water to the spray component.

[0015] Furthermore, the spray assembly includes a main pipe and a nozzle. The main pipe is located above the right end of the box body. The lower end surface of the main pipe is evenly provided with nozzles connected thereto. The main pipe is connected to the water supply assembly.

[0016] Furthermore, the water supply assembly includes a circulation pump and a water supply pipe. A circulation pump connected to the side of the treatment box is provided. The circulation pump is located below the filter screen. The circulation pump is connected to the main pipe through the water supply pipe.

[0017] Furthermore, the filter is slidably connected to the upper end of the side of the processing box, and an end plate is provided on the end of the filter exposed from the processing box, and a handle is provided on the end plate.

[0018] Furthermore, a water supply pipe connected to the processing box is provided on the side thereof, and the water supply pipe is located below the filter screen.

[0019] Furthermore, a supporting leg is provided on the left side of the lower end surface of the box body.

[0020] 3. Beneficial Effects

[0021] The advantages of the utility model compared with the prior art are:

[0022] 1. The flue gas cooling unit cools down the flue gas entering the box, and at the same time, takes away the heat in the flue gas through the heat transfer fluid inside and utilizes it, without wasting heat energy;

[0023] 2. The spray water containing dust flows into the treatment box after being filtered by the filter screen. The sludge discharge component discharges the sludge deposited at the lower end of the treatment box to effectively treat the sewage after spraying;

[0024] 3. The water supply component reuses the filtered spray water to reduce the loss of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0026] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the structure of the smoke cooling unit of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the processing box of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the spray assembly of the utility model.

[0030] Figure numerals: 1. box body, 2. air inlet pipe, 3. air outlet pipe, 4. heat absorption pipe, 5. processing box, 6. filter screen, 7. motor, 8. feeding screw, 9. guide block, 10. main pipe, 11. nozzle, 12. circulation pump, 13. water supply pipe, 14. end plate, 15. handle, 16. water supply pipe, 17. support leg. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0032] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] The utility model will now be further described in conjunction with the accompanying drawings.

[0036] Embodiment 1

[0037] Combined with Figure 1-3The left and right ends of the box body 1 are respectively provided with an air inlet pipe 2 and an air outlet pipe 3 connected thereto. The left end of the box body 1 is provided with a flue gas cooling unit. The flue gas cooling unit adopts a heat absorption pipe 4. The heat absorption pipe 4 is spiral, and both ends of the heat absorption pipe 4 are exposed from the box body 1.

[0038] When in use, dusty high-temperature flue gas enters the box 1 through the air inlet pipe 2, passes through the heat absorption pipe 4, and the flue gas is initially cooled by the heat transfer fluid in the heat absorption pipe 4. At the same time, the heat transfer fluid takes away the heat in the flue gas, which facilitates the subsequent use of the heat energy in the flue gas.

[0039] Combined with Figure 1 , 2 and 5. A spray assembly is provided at the right end of the box body 1, and the spray assembly sprays dust removal and cooling of the passing flue gas. The spray assembly comprises a main pipe 10 and a nozzle 11. The main pipe 10 is located above the right end of the box body 1. The lower end surface of the main pipe 10 is evenly provided with nozzles 11 connected thereto, and the main pipe 10 is connected to the water supply assembly.

[0040] When the flue gas passes through the spray assembly, the water in the main pipe 10 is sprayed to the flue gas through the nozzle 11, so as to cool down the flue gas again and remove dust.

[0041] Combined with Figure 4 The right end of the lower end face of the box body 1 is provided with a treatment box 5 connected thereto, the upper end of the treatment box 5 is provided with a filter screen 6, the lower end of the side of the treatment box 5 is provided with a mud discharge pipe connected thereto, and the lower end of the treatment box 5 is provided with a sludge discharge assembly; the sludge discharge assembly includes a motor 7 and a feeding screw 8. The side of the treatment box 5 opposite to the mud discharge pipe is provided with a motor 7, the lower end of the treatment box 5 is rotatably connected with a feeding screw 8, and guide blocks 9 are provided on both sides of the feeding screw 8. The motor 7 drives the feeding screw 8 to rotate to discharge the precipitated sludge through the mud discharge pipe.

[0042] The dust-containing spray water after spraying enters the treatment box 5 after being filtered by the filter screen 6. The filter screen 6 filters the large particles of debris. During the sedimentation process of the filtered sewage, the impurities therein are guided by the guide block 9 and precipitated at the lower end of the treatment box 5. The motor 7 rotates to drive the feeding screw 8 to rotate, and the sludge settled at the lower end of the treatment box 5 is discharged through the sludge discharge pipe.

[0043] Embodiment 2

[0044] Combined with Figure 1 , 2, 4 and 5, a water supply assembly is provided on the side of the treatment box 5, and the water supply assembly delivers the filtered spray water to the spray assembly. The water supply assembly includes a circulation pump 12 and a water supply pipe 13. A circulation pump 12 is provided on the side of the treatment box 5 and is connected thereto. The circulation pump 12 is located below the filter 6. The circulation pump 12 is connected to the main pipe 10 through the water supply pipe 13. The filter 6 is slidably connected to the upper end of the side of the treatment box 5. An end plate 14 is provided on the end of the filter 6 exposed from the treatment box 5, and a handle 15 is provided on the end plate 14.

[0045] On the basis of the first embodiment, the filtered spray water is sent to the main pipe through the circulation pump 12 and the water supply pipe 13, so as to reuse the spray water. The filter screen 6 slidably connected to the treatment box 5 is pulled out through the handle 15 and the end plate 14, and the large particles remaining on the filter screen 6 can be cleaned to ensure subsequent use.

[0046] The utility model and its implementation methods are described, and such description is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A flue gas cooling and dust removal device, comprising a box body (1), wherein the box body (1) is provided with an air inlet pipe (2) and an air outlet pipe (3) communicating therewith at the left and right ends thereof, respectively, and characterized in that: A flue gas cooling unit is provided at the left end of the box body (1), and the flue gas cooling unit adopts a heat absorbing pipe (4). The heat absorbing pipe (4) is spiral-shaped, and both ends of the heat absorbing pipe (4) are exposed from the box body (1); A spray assembly is provided at the right end of the box body (1), and the spray assembly sprays the passing flue gas to remove dust and reduce the temperature; The right end of the lower end surface of the box body (1) is provided with a processing box (5) connected thereto, the upper end of the processing box (5) is provided with a filter screen (6), the lower end of the side surface of the processing box (5) is provided with a mud discharge pipe connected thereto, and the lower end of the processing box (5) is provided with a mud discharge assembly; The sludge discharge assembly comprises a motor (7) and a feeding screw (8). The motor (7) is provided on the side of the treatment box (5) opposite to the sludge discharge pipe. The lower end of the treatment box (5) is rotatably connected to the feeding screw (8). Guide blocks (9) are provided on both sides of the feeding screw (8). The motor (7) drives the feeding screw (8) to rotate and discharge the deposited sludge through the sludge discharge pipe. A water supply component is provided on the side of the treatment box (5), and the water supply component delivers the filtered spray water to the spray component.

2. A flue gas cooling and dust removal device according to claim 1, characterized in that: The spray assembly comprises a main pipe (10) and a spray head (11); the main pipe (10) is located above the right end of the box (1); the lower end surface of the main pipe (10) is evenly provided with spray heads (11) connected thereto; and the main pipe (10) is connected to a water supply assembly.

3. A flue gas cooling and dust removal device according to claim 2, characterized in that: The water supply assembly comprises a circulation pump (12) and a water supply pipe (13); a circulation pump (12) connected to the treatment box (5) is provided on the side thereof; the circulation pump (12) is located below the filter screen (6); and the circulation pump (12) is connected to the main pipe (10) via the water supply pipe (13).

4. The flue gas cooling and dust removal device according to claim 1, characterized in that: The filter screen (6) is slidably connected to the upper end of the side of the processing box (5); an end plate (14) is provided on the end of the filter screen (6) exposed from the processing box (5); and a handle (15) is provided on the end plate (14).

5. The flue gas cooling and dust removal device according to claim 4, characterized in that: A water supply pipe (16) communicating with the treatment box (5) is provided on the side thereof, and the water supply pipe (16) is located below the filter screen (6).

6. The flue gas cooling and dust removal device according to claim 1, characterized in that: A supporting leg (17) is provided on the left side of the lower end surface of the box body (1).

Images