Tunnel kiln waste heat recycling device

Abstract

The utility model discloses a tunnel kiln waste heat recycling device which is applied to the technical field of tunnel kilns and is characterized in that an air pump and a centrifugal pump are started, the air pump sucks air into a purification box to form negative pressure inside the purification box, so that hot air can enter the purification box, and the centrifugal pump pumps out a water source through a liquid pumping pipe and conveys the water source into a connecting pipe through a conveying pipe. Impurities carried by the hot air passing through the water curtain can be washed away by the water curtain, the impurities are prevented from entering the air pump, and the service life of the air pump is prolonged; spraying water in the purification box directly flows back into the water tank through the return pipe, is filtered by the filter screen and is pumped out by the centrifugal pump, so that circulating spraying is achieved, and the water purification efficiency is improved. Waste of water resources is avoided, and the water resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel kiln technical field, in particular to a kind of tunnel kiln waste heat recycling device. BACKGROUND

[0002] At present, in the use process of tunnel kiln, a large amount of hot gas will be generated, which is very wasteful if directly discharged, so waste heat utilization device is used to make hot gas effectively utilized.

[0003] At present, the Chinese utility model with the announcement number CN219674836U discloses a waste heat recycling device of tunnel kiln, relates to heat utilization device technical field, the device is directly extracted to hot gas by air pump, however, this way can cause impurities in hot gas to enter air pump, cause air pump to be prone to failure or damage, reduce the service life of air pump. UTILITY MODEL CONTENTS

[0004] The utility model aims at a kind of tunnel kiln waste heat recycling device, its advantage is to avoid the impurities in hot gas to enter air pump, and can achieve circulating spray.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of tunnel kiln waste heat recycling device, including base, the top of the base is provided with box, the inner chamber of the box is provided with air pump by fixed plate, the air pump is communicated with the purification tank at suction end, the air pump is provided with circulating pipe at exhaust end, the top of the purification tank is provided with centrifugal pump, the inside of the purification tank is provided with connecting pipe, the outside of the connecting pipe is provided with atomizing nozzle, the bottom of the purification tank is communicated with reflux pipe, the bottom of the reflux pipe is communicated with water tank, the inside of the water tank is provided with filter screen.

[0006] The above technical scheme is used: start air pump and centrifugal pump, air pump is sucked into purification tank to form negative pressure inside, so that hot gas can enter the purification tank, while centrifugal pump is extracted by liquid pipe and is sent to connecting pipe by delivery pipe, finally is sprayed from atomizing nozzle and forms a water curtain, impurities carried by hot gas through water curtain will be washed, avoid impurities to enter air pump, improve the service life of air pump: the spray water in the purification tank is directly refluxed to water tank by reflux pipe, is filtered by filter screen, then is extracted by centrifugal pump, to achieve circulating spray, avoid waste of water resources, save water source.

[0007] The utility model is further provided as follows: one side of the box is communicated with drain pipe, the outside of the drain pipe is provided with drain valve, the top of the box is communicated with water injection pipe.

[0008] The above technical scheme is used: it is convenient to add water in box and discharge water in box.

[0009] The utility model further sets up, one end of circulating pipe is communicated with exhaust valve in one side of box body.

[0010] The above technical scheme has the advantages that: the hot gas in the circulating pipe can be conveniently discharged.

[0011] The utility model further sets up, the drainage end of centrifugal pump is provided with the delivery pipe, the water pumping end of centrifugal pump is provided with the liquid pumping pipe, one end of delivery pipe is communicated with the connecting pipe through the top of purification tank, one end of liquid pumping pipe is communicated with the top of water tank.

[0012] The above technical scheme has the advantages that: the water in the water tank can be conveniently pumped out.

[0013] The utility model further sets up, the number of atomizing nozzle is a plurality of, a plurality of atomizing nozzle is equidistantly arranged.

[0014] The above technical scheme has the advantages that: uniform spraying can be achieved.

[0015] The utility model further sets up, the inner wall of filter screen is equipped with arc clamping groove, the inner wall of water tank is connected with arc clamping block slidingly.

[0016] The above technical scheme has the advantages that: the filter screen can be conveniently disassembled and assembled.

[0017] The utility model further sets up, one side of arc clamping block is fixedly connected with spring, the other side of arc clamping block is fixedly connected with limiting block.

[0018] The above technical scheme has the advantages that: the arc clamping block can be automatically reset.

[0019] The utility model further sets up, the inner wall of water tank is equipped with the limiting slot of cooperation with limiting block.

[0020] The above technical scheme has the advantages that: the arc clamping block can be stably moved.

[0021] In conclusion, the utility model has the advantages of:

[0022] 1: start air pump and centrifugal pump, air pump inhales air into purification tank to form negative pressure inside, so that hot gas can enter the purification tank, and the centrifugal pump draws water source through the liquid pumping pipe and sends to the connecting pipe through the delivery pipe, and finally sprays from the atomizing nozzle and forms a water curtain, the impurities carried by the hot gas through the water curtain will be washed, avoiding the impurities entering the air pump, prolonging the service life of the air pump.

[0023] 2: the spraying water in the purification tank is directly returned to the water tank through the return pipe, filtered through the filter screen, and then pumped out by the centrifugal pump, so as to achieve circulating spraying, avoid water resource waste, and save water source. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the air pump and circulation pipe of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the return pipe and water tank of this utility model;

[0027] Figure 4 This is a utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0028] Reference numerals in the attached diagram: 1. Base; 2. Box body; 201. Drain pipe; 3. Air pump; 4. Purification box; 5. Circulation pipe; 501. Exhaust valve; 6. Centrifugal pump; 7. Connecting pipe; 8. Atomizing nozzle; 9. Return pipe; 10. Water tank; 11. Filter screen; 12. Delivery pipe; 13. Liquid extraction pipe; 14. Arc-shaped groove; 15. Arc-shaped locking block; 16. Spring; 17. Limiting block. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] refer to Figure 1 , Figure 2 and Figure 3 A waste heat recovery device for a tunnel kiln includes a base 1, a box 2 on the top of the base 1, an air pump 3 installed in the inner cavity of the box 2 via a fixing plate, a purification box 4 connected to the air pump 3 at the air intake end, a circulation pipe 5 installed at the air pump 3 at the exhaust end, a centrifugal pump 6 installed on the top of the purification box 4, a connecting pipe 7 installed inside the purification box 4, an atomizing nozzle 8 installed on the outside of the connecting pipe 7, and an air inlet pipe connected to one side of the purification box 4.

[0032] refer to Figure 1 and Figure 2 A drain pipe 201 is connected to one side of the box body 2. A drain valve is installed on the outside of the drain pipe 201. A water injection pipe is connected to the top of the box body 2. Water is injected into the box body 2 through the water injection pipe and discharged through the drain pipe 201 after heating.

[0033] refer to Figure 2 One end of the circulation pipe 5 passes through one side of the box 2 and is connected to the exhaust valve 501.

[0034] refer to Figure 1 , Figure 2 and Figure 3The water outlet end of the centrifugal pump 6 is provided with a conveying pipe 12, and the water inlet end of the centrifugal pump 6 is provided with a liquid suction pipe 13. One end of the conveying pipe 12 penetrates through the top of the purification tank 4 and communicates with the connecting pipe 7, and one end of the liquid suction pipe 13 communicates with the top of the water tank 10.

[0035] With reference to Figure 2 The number of the atomizing nozzles 8 is several, and the several atomizing nozzles 8 are equidistantly arranged.

[0036] The use process is briefly described as follows: the air pump 3 and the centrifugal pump 6 are started. The air pump 3 sucks air into the purification tank 4 to form a negative pressure in the purification tank 4, so that hot air enters the purification tank 4 from the air inlet pipe, and the centrifugal pump 6 draws water from the water source through the liquid suction pipe 13 and then conveys the water into the connecting pipe 7 through the conveying pipe 12, and finally the water is sprayed from the atomizing nozzles 8 and forms a water curtain. The impurities carried by the hot air are washed away by the water curtain, and the hot air is sucked into the circulating pipe 5 by the air pump 3, so that the water source in the tank 2 is heated. Finally, the exhaust valve 501 is opened to exhaust the hot air in the circulating pipe 5.

[0037] (The hot air passes through the water curtain only for a moment, not for a long time, so the washing of the water curtain does not cause the hot air to cool down).

[0038] Embodiment 2:

[0039] With reference to Figure 1 , Figure 2 , Figure 3 and Figure 4 A tunnel kiln waste heat recycling device, comprising a base 1, the top of the base 1 is provided with a tank 2, the inner cavity of the tank 2 is provided with an air pump 3 through a fixed plate, the air suction end of the air pump 3 is communicated with a purification tank 4, the bottom of the purification tank 4 is communicated with a backflow pipe 9, the bottom of the backflow pipe 9 is communicated with a water tank 10, and the inner part of the water tank 10 is provided with a filter screen 11.

[0040] With reference to Figure 4 An arc-shaped clamping groove 14 is formed in the inner wall of the filter screen 11, and an arc-shaped clamping block 15 is slidably connected to the inner wall of the water tank 10.

[0041] With reference to Figure 4 One side of the arc-shaped clamping block 15 is fixedly connected with a spring 16, and the other side of the arc-shaped clamping block 15 is fixedly connected with a limiting block 17.

[0042] With reference to Figure 4 A limiting groove matched with the limiting block 17 is formed in the inner wall of the water tank 10. Through the cooperation of the limiting block 17 and the limiting groove, the arc-shaped clamping block 15 can move stably.

[0043] When the filter screen 11 needs to be cleaned, the filter screen 11 is moved to make the arc-shaped clamping groove 14 extrude the arc-shaped clamping block 15, the arc-shaped clamping block 15 is extruded to be retracted into the inner cavity of the water tank 10 and make the spring 16 be compressed, then the filter screen 11 is continuously taken out from the water tank 10.

[0044] Brief description of the use process: the spraying water in the purification tank 4 is directly returned to the water tank 10 through the return pipe 9, filtered through the filter screen 11, and then extracted by the centrifugal pump 6, so that the spraying is circulated, the waste of water resources is avoided, and the water resources are saved.

[0045] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a person skilled in the art can make a modification without creative contribution to the embodiment according to the needs after reading the specification, but as long as the modification is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A tunnel kiln waste heat reutilization device comprising a base (1), characterized in that: The top of the base (1) is provided with a box (2), the inner cavity of the box (2) is provided with an air pump (3) through a fixed plate, the air suction end of the air pump (3) is communicated with a purification tank (4), the air exhaust end of the air pump (3) is provided with a circulating pipe (5), the top of the purification tank (4) is provided with a centrifugal pump (6), the inside of the purification tank (4) is provided with a connecting pipe (7), the outer side of the connecting pipe (7) is provided with an atomizing nozzle (8), the bottom of the purification tank (4) is communicated with a backflow pipe (9), the bottom of the backflow pipe (9) is communicated with a water tank (10), the inside of the water tank (10) is provided with a filter screen (11).

2. A tunnel kiln waste heat reutilization device according to claim 1, characterized in that: One side of the box (2) is communicated with a drain pipe (201), the outer side of the drain pipe (201) is provided with a drain valve, the top of the box (2) is communicated with a water injection pipe.

3. A tunnel kiln waste heat reusing device according to claim 1, characterized in that: One end of the circulating pipe (5) penetrates through one side of the box (2) and is communicated with an exhaust valve (501).

4. The tunnel kiln waste heat reusing device according to claim 1, characterized in that: The water delivery end of the centrifugal pump (6) is provided with a delivery pipe (12), the water suction end of the centrifugal pump (6) is provided with a liquid suction pipe (13), one end of the delivery pipe (12) penetrates through the top of the purification tank (4) and is communicated with the connecting pipe (7), one end of the liquid suction pipe (13) is communicated with the top of the water tank (10).

5. A tunnel kiln waste heat reusing device according to claim 1, characterized in that: The number of the atomizing nozzles (8) is several, and the several atomizing nozzles (8) are equidistantly arranged.

6. A tunnel kiln waste heat reusing device according to claim 1, characterized in that: The inner wall of the filter screen (11) is provided with an arc-shaped clamping groove (14), and the inner wall of the water tank (10) is slidably connected with an arc-shaped clamping block (15).

7. A tunnel kiln waste heat reusing device according to claim 6, characterized in that: One side of the arc-shaped clamping block (15) is fixedly connected with a spring (16), and the other side of the arc-shaped clamping block (15) is fixedly connected with a limiting block (17).

8. A tunnel kiln waste heat reusing device according to claim 7, characterized in that: The inner wall of the water tank (10) is provided with a limiting groove matched with the limiting block (17).

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