Flue gas purification device for household garbage incineration

Abstract

The utility model relates to the technical field of garbage treatment, in particular to a flue gas purification device for household garbage incineration, a heat exchange box is fixedly connected to the position, close to the middle position, in a purification box, a heat exchange spiral pipe is connected to the interior of the heat exchange box in a sealed mode, and a gas-liquid mixing pool is fixedly connected to the upper end in the purification box; according to the heat exchange device, smoke can be guided and conveyed under the action of the heat exchange spiral pipe arranged in the heat exchange box, heat exchange can be formed between heat in the smoke and liquid in the heat exchange box, the smoke can be exhausted in a low-temperature state, and the smoke can be exhausted in a high-temperature state. The gas-liquid mixing tank is arranged in the gas-liquid mixing tank, gas can be discharged into the gas-liquid mixing tank through the flow dividing hole cover under the action of the gas guide pipe, so that the gas can be dispersed and fully mixed with the lime solution in the gas-liquid mixing tank, and the rising gas can be purified again through the atomization spraying disc, so that the flue gas can be fully purified, and the final purification effect on the flue gas is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of for domestic waste incineration flue gas purification device, belong to garbage disposal technical field. BACKGROUND

[0002] In recent years with the acceleration of urbanization in China, the urban population is increasing, the corresponding urban domestic waste production is increasing, and the garbage problem gradually becomes a prominent problem affecting urban life quality. About 80% of domestic waste in China is treated by simple landfill, but this method not only occupies a large amount of land, but also forms secondary pollution, and landfill has also appeared bottleneck and environmental deterioration hidden danger. As the main way of domestic waste resource utilization, garbage incineration treatment has the comprehensive advantages of reduction, resource utilization and harmlessness. Garbage incineration is accompanied by over-standard tail gas emission.

[0003] The existing patent number CN209885565U is a kind of for domestic waste incineration flue gas purification device. The device is equipped with a spray rotating disc, a liquid inlet pipe and a baffle. Under the drive of the motor, the spray rotating disc rotates at high speed, so that the lime solution flows from the inverted triangular structure groove to the edge of the spray rotating disc through high-speed spray rotating disc. The steel plate on the spray rotating disc and the baffle on the top are beneficial to increase the shear force of droplets and prevent clogging, and more easily form smaller droplets to react with flue gas, to ensure the effect of garbage incineration flue gas purification treatment. However, the device can shear droplets when in use, but it also causes droplets to be thrown outward, forming a hollow ring, so that the flue gas in the middle part cannot be fully purified, reducing the final flue gas purification effect. Moreover, the device does not have a filtering structure when in use, so that the solid particles in the flue gas cannot be separated and recycled. The existing dust cloth bag cannot be automatically cleaned when in use, so it needs to be disassembled and cleaned, which cannot continuously purify the flue gas and reduces the flue gas purification efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of for domestic waste incineration flue gas purification device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] A kind of for domestic waste incineration flue gas purification device, including purification box, air inlet pipe and exhaust pipe, the inside of the purification box is fixedly connected with heat exchange box near middle position, the inside of the heat exchange box is sealingly connected with heat exchange spiral pipe, the upper end of the heat exchange spiral pipe is sealingly connected with air guide pipe, the inside upper end of the purification box is fixedly connected with gas-liquid mixing pool, the inside lower end of the gas-liquid mixing pool is fixedly connected with shunt hole cover, the upper end of the shunt hole cover is sealingly connected between air guide pipe, the inside lower end of the purification box is fixedly connected with air inlet box, the upper end wall inboard of the air inlet box is fixedly connected with solid particle filter screen, the inside of the air inlet box is rotatably connected with rotary scraper wheel.

[0007] Further, the upper end of the purification box is fixedly connected with lime solution storage tank in middle position, the lower end of the lime solution storage tank is sealingly connected with atomizing spray disc, and the atomizing spray disc is sealingly connected between the purification box.

[0008] Further, the upper side of the front end of the purification box is sealingly connected with liquid discharge valve pipe, and the liquid discharge valve pipe is sealingly connected between the gas-liquid mixing pool.

[0009] Further, the lower left end of the purification box is sealingly connected with air inlet pipe, and the air inlet pipe is sealingly connected between the air inlet box, and the upper end of the purification box is sealingly connected with exhaust pipe on the left and right sides.

[0010] Further, the upper side of the left and right ends of the purification box is respectively sealingly connected with heat exchange liquid inlet pipe and heat exchange liquid outlet pipe, and the heat exchange liquid inlet pipe and heat exchange liquid outlet pipe are respectively sealingly connected between the heat exchange box.

[0011] Further, the lower right end of the purification box is fixedly connected with motor, the output shaft of the motor is fixedly connected between the rotary scraper wheel, and the lower side of the inside of the purification box is fixedly connected with fixed sealing plate on the front and rear end walls, and the fixed sealing plate is fixedly connected between the air inlet box.

[0012] Further, the lower end of the purification box is helically connected with granular impurity recovery tank in middle position, the granular impurity recovery tank is sealingly connected between the air inlet box, and the lower end of the purification box is fixedly connected with bottom frame on the outside.

[0013] The beneficial effects of the present application are:

[0014] The utility model discloses a heat exchange spiral pipe's role in the heat exchange box can guide and send flue gas, and can make the heat in flue gas and the liquid in the heat exchange box form heat exchange, makes flue gas can be in low temperature state and export, and through the effect of gas guide pipe makes gas can be discharged into gas-liquid mixing pool through the shunt hole cover, thereby making gas can disperse and fully mix with internal lime solution, and through atomizing sprinkling disc can carry out secondary purification treatment to the gas that rises, to make flue gas can be fully purified, improve the final purification effect of flue gas, the utility model discloses the effect of air inlet pipe makes gas can enter the inside upper side of air inlet tank, and is filtered through solid particle filter screen, and through the rotation of motor makes rotary scraper wheel can rotate, thereby can scrape off the solid particle that filters out, avoid causing gas flow blockage simultaneously and can drive solid particle and convey to the particle impurity recovery tank in lower end, form the filtration recovery treatment of solid particle, make the device can carry out sustained purification treatment to flue gas, improve flue gas purification efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not limit the present application.

[0016] Figure 1 It is a front view of the present application for domestic waste incineration flue gas purification device;

[0017] Figure 2 It is the installation structure sectional view of the purification tank of the present application for domestic waste incineration flue gas purification device;

[0018] Figure 3 It is the installation structure schematic view of the air inlet tank of the present application for domestic waste incineration flue gas purification device;

[0019] Figure 4 It is the installation structure right sectional view of the air inlet tank, solid particle filter screen and rotary scraper wheel of the present application for domestic waste incineration flue gas purification device;

[0020] Marked number in drawing: 1, purification tank;2, heat exchange box;3, heat exchange spiral pipe;4, gas guide pipe;5, gas-liquid mixing pool;6, shunt hole cover;7, air inlet tank;8, solid particle filter screen;9, rotary scraper wheel;10, lime solution storage tank;11, atomizing sprinkling disc;12, liquid discharge valve pipe;13, air inlet pipe;14, exhaust pipe;15, heat exchange liquid inlet pipe;16, heat exchange liquid outlet pipe;17, motor;18, fixed sealing plate;19, particle impurity recovery tank;20, base frame. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the 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 efforts belong to the scope of the present application.

[0022] Embodiment 1 Figures 1-4 The present application provides a technical solution:

[0023] The utility model provides a kind of domestic waste incineration flue gas purification device, including purification box 1, inlet pipe 13 and exhaust pipe 14, the inside of purification box 1 is fixedly connected with heat exchange box 2 near middle position, the inside of heat exchange box 2 is sealingly connected with heat exchange spiral pipe 3, the upper end of heat exchange spiral pipe 3 is sealingly connected with gas guide pipe 4, the inside upper end of purification box 1 is fixedly connected with gas-liquid mixing pool 5, the inside lower end of gas-liquid mixing pool 5 is fixedly connected with shunt hole cover 6, shunt hole cover 6 is sealingly connected between upper end and gas guide pipe 4, the upper end middle position of purification box 1 is fixedly connected with lime solution storage tank 10, the lower end of lime solution storage tank 10 is sealingly connected with atomizing spray tray 11, atomizing spray tray 11 is sealingly connected with purification box 1, the front end upper side of purification box 1 is sealingly connected with liquid discharge valve pipe 12, liquid discharge valve pipe 12 is sealingly connected with gas-liquid mixing pool 5, the lower left end of purification box 1 is sealingly connected with inlet pipe 13, inlet pipe 13 is sealingly connected with inlet box 7, the upper side of left and right sides of purification box 1 is sealingly connected with exhaust pipe 14, the upper side of left and right ends of purification box 1 is respectively sealingly connected with heat exchange inlet pipe 15 and heat exchange outlet pipe 16, heat exchange inlet pipe 15 and heat exchange outlet pipe 16 are sealingly connected with heat exchange box 2 respectively, the heat exchange spiral pipe 3 in heat exchange box 2 can be arranged to guide and send flue gas, and the heat in flue gas can be exchanged with liquid in heat exchange box 2, so that flue gas can be discharged in low temperature state, and gas can be discharged into gas-liquid mixing pool 5 through shunt hole cover 6 by the action of gas guide pipe 4, so that gas can be dispersed and fully mixed with internal lime solution, and the rising gas can be further purified by atomizing spray tray 11, so that flue gas can be fully purified, and the final purification effect of flue gas is improved.

[0024] Embodiment 2 Figures 1-4The difference between the embodiment and embodiment 1 is that the lower end of the purification box 1 is fixedly connected with an air inlet box 7, the inner side of the upper end wall of the air inlet box 7 is fixedly connected with a solid particle filter screen 8, the inside of the air inlet box 7 is rotatably connected with a rotating scraping wheel 9, the lower end of the purification box 1 is fixedly connected with a motor 17, the output shaft of the motor 17 is fixedly connected with the rotating scraping wheel 9, the lower side of the inside of the purification box 1 is fixedly connected with fixed sealing plates 18, the fixed sealing plates 18 are fixedly connected between the purification box 1 and the air inlet box 7, the lower end of the purification box 1 is spirally connected with a particle impurity recovery tank 19, the particle impurity recovery tank 19 is sealingly connected between the purification box 1 and the air inlet box 7, and the lower end of the purification box 1 is fixedly connected with a chassis 20.

[0025] The working principle of the utility model is: when the device is used, the heat exchange spiral pipe 3 in the heat exchange box 2 can guide and deliver the flue gas, and the heat in the flue gas can exchange with the liquid in the heat exchange box 2, so that the flue gas can be discharged in a low-temperature state, the gas can be discharged into the gas-liquid mixing pool 5 through the shunt hole cover 6 through the action of the gas guide pipe 4, so that the gas can be dispersed and fully mixed with the lime solution in the inside, and the rising gas can be further purified by the atomizing spray disc 11, so that the flue gas can be fully purified, the final purification effect of the flue gas is improved, the gas can enter the inside of the air inlet box 7 through the action of the air inlet pipe 13, and the solid particles can be filtered through the solid particle filter screen 8, the rotating scraping wheel 9 can be rotated by rotating the motor 17, so that the filtered solid particles can be scraped off, the gas flow is prevented from being blocked, the solid particles can be conveyed to the particle impurity recovery tank 19 at the lower end, the solid particles are filtered and recovered, the device can continuously purify the flue gas, and the flue gas purification efficiency is improved.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A household garbage incineration flue gas purification device, comprising a purification box (1), an air inlet pipe (13) and an air outlet pipe (14), characterized in that: The inside of the purification box (1) is fixedly connected with a heat exchange box (2) near the middle position, the inside of the heat exchange box (2) is sealingly connected with a heat exchange spiral pipe (3), the upper end of the heat exchange spiral pipe (3) is sealingly connected with a gas guide pipe (4), the inside of the upper end of the purification box (1) is fixedly connected with a gas-liquid mixing pool (5), the inside of the lower end of the gas-liquid mixing pool (5) is fixedly connected with a shunt hole cover (6), the upper end of the shunt hole cover (6) is sealingly connected with the gas guide pipe (4), the lower end of the inside of the purification box (1) is fixedly connected with an air inlet box (7), the inner side of the upper end wall of the air inlet box (7) is fixedly connected with a solid particle filter screen (8), and the inside of the air inlet box (7) is rotatably connected with a rotating scraper wheel (9).

2. The device for waste incineration flue gas purification according to claim 1, characterized in that: The upper end of the purification box (1) is fixedly connected with a lime solution storage tank (10), the lower end of the lime solution storage tank (10) is sealingly connected with an atomizing spray disc (11), and the atomizing spray disc (11) is sealingly connected with the purification box (1).

3. The device for waste incineration flue gas purification according to claim 1, characterized in that: The front end of the upper side of the purification box (1) is sealingly connected with a liquid discharge valve pipe (12), and the liquid discharge valve pipe (12) is sealingly connected with the gas-liquid mixing pool (5).

4. The device for waste incineration flue gas purification according to claim 1, characterized in that: The lower left end of the purification box (1) is sealingly connected with an air inlet pipe (13), the air inlet pipe (13) is sealingly connected with the air inlet box (7), and the upper ends of the left and right sides of the purification box (1) are sealingly connected with air outlet pipes (14).

5. The device for waste incineration flue gas purification according to claim 1, characterized in that: The upper sides of the left and right ends of the purification box (1) are respectively sealingly connected with a heat exchange liquid inlet pipe (15) and a heat exchange liquid outlet pipe (16), and the heat exchange liquid inlet pipe (15) and the heat exchange liquid outlet pipe (16) are respectively sealingly connected with the heat exchange box (2).

6. The device for waste incineration flue gas purification according to claim 1, characterized in that: The lower right end of the purification box (1) is fixedly connected with a motor (17), the output shaft of the motor (17) is fixedly connected with the rotating scraper wheel (9), the lower side of the inside of the purification box (1) is fixedly connected with fixed sealing plates (18), and the fixed sealing plates (18) are fixedly connected with the air inlet box (7).

7. The device according to claim 1, characterized in that: The lower end of the purification box (1) is screwedly connected with a particle impurity recovery tank (19) at the middle position, the particle impurity recovery tank (19) is sealingly connected with the air inlet box (7), and the lower end of the purification box (1) is fixedly connected with a bottom frame (20).

Images