Waste heat recovery device for ceramic kiln

Abstract

The utility model relates to a waste heat recovery device for a ceramic kiln, which comprises a kiln body, and an air preheating component for preheating air is arranged at the top of the kiln body; according to the waste heat recovery device for the ceramic kiln, the air preheating assembly is arranged, so that the effect of preheating air can be effectively achieved in the using process of the waste heat recovery device, meanwhile, the situation that a pipeline is blocked due to smoke dust can be avoided, and the situation that a worker needs to frequently replace a filter screen can be avoided; by arranging the electromagnetic valves on the smoke exhaust pipe and the smoke inlet pipe, the effect of flexible adjustment can be achieved in the using process, it can be guaranteed that external air is prevented from entering the preheating bin in the air preheating process, and smoke dust can be prevented from entering the combustion bin in the filter screen cleaning process.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic kiln technical field, concretely for a kind of waste heat recovery device for ceramic kiln. BACKGROUND

[0002] Ceramic kiln is the equipment that is built with refractory material, to fire ceramic products, by controlling temperature and atmosphere, so that ceramic body glaze completes physical chemistry reaction under certain conditions, sintering into ware and forming color and its change;

[0003] Ceramic kiln air preheating device is the equipment that utilizes the high heat capacity and heat conduction performance of ceramic material, by recycling the heat in ceramic kiln tail flue gas to preheat the air entering kiln, to improve energy utilization efficiency, reduce energy consumption and reduce heat waste;

[0004] The air preheating device in prior art is usually connected between furnace body and preheating box through connecting pipe, so that hot gas in furnace body heats the air in preheating box, but there are a lot of smoke dust in hot gas during transportation, which can easily cause blockage in connecting pipe and preheating pipe after long time use, affect hot gas discharge and also reduce preheating effect; Although filter screen is arranged in it to have certain dust interception effect, but filter screen can be easily blocked after long time use, so that staff need to frequently replace or clean it, increase the workload of staff; Therefore, a waste heat recovery device for ceramic kiln is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model provides a waste heat recovery device for ceramic kiln, which has the advantages of preventing blockage and being automatically cleanable, and solves the problem of easy blockage of kiln air preheating device pipeline in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a waste heat recovery device for ceramic kiln, comprising a kiln body, an air preheating assembly for air preheating is arranged at the top of the kiln body.

[0007] The inner cavity of the kiln body is provided with a partition plate, which divides the inner cavity of the kiln body into a combustion chamber and a preheating chamber, the top of the combustion chamber is provided with a smoke exhaust port, the top of the preheating chamber is provided with a heat recovery port, and the other end of the smoke exhaust port and the heat recovery port is in communication with the air preheating assembly.

[0008] The air preheating assembly comprises a preheating box, a plurality of filter screens for filtering exhaust gas are arranged in the preheating box, a connecting branch pipe is arranged on each filter screen, a connecting pipe is connected to the other end of the connecting branch pipe, a heat recovery pipe is arranged on the connecting pipe, a fan for air circulation is arranged on the heat recovery pipe, the other end of the heat recovery pipe is in communication with the heat recovery port, and a smoke inlet pipe in communication with the smoke outlet port and a smoke outlet pipe for discharging waste are further arranged on one side of the preheating box.

[0009] Further, the filter screen is a columnar filter screen, and the bottom of the filter screen is in communication with the connecting pipe.

[0010] Further, the smoke inlet pipe and the smoke outlet pipe are both provided with electromagnetic valves.

[0011] Further, the kiln body is provided with a support frame for supporting, and the feeding port of the kiln body is provided with a sealing door for sealing.

[0012] Further, the partition plate is further rotationally connected with a sealing baffle for sealing.

[0013] Further, the kiln body is further provided with a feeding trolley, and the feeding trolley comprises a feeding supporting plate for feeding and a guide column for guiding, and the guide column is slidingly connected to the support frame.

[0014] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0015] I. The waste heat recovery device for the ceramic kiln can effectively preheat air during use, can avoid pipe blockage caused by smoke, and can avoid the need for frequent replacement of filter screens.

[0016] II. The waste heat recovery device for the ceramic kiln is provided with electromagnetic valves on the smoke outlet pipe and the smoke inlet pipe, so that the device can be flexibly adjusted during use, can prevent external air from entering the preheating chamber during air preheating, and can prevent smoke from entering the combustion chamber during cleaning of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the present application;

[0018] Figure 2 It is a structural schematic view of the air preheating assembly of the present application;

[0019] Figure 3 It is an enlarged view of the air preheating assembly structure of the present application;

[0020] Figure 4 It is an internal structure schematic view of the utility model.

[0021] In the drawing: 1, kiln body; 11, sealing door; 12, support frame; 13, feeding trolley; 14, feeding supporting plate; 15, guide column; 16, smoke outlet; 17, heat recovery port; 18, partition; 19, sealing door; 2, air preheating assembly; 201, preheating box; 202, filter screen; 203, smoke exhaust pipe; 204, smoke inlet pipe; 205, connecting pipe; 206, connecting branch pipe; 207, heat recovery pipe; 208, fan; 209, electromagnetic valve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 In the embodiment, the waste heat recovery device for the ceramic kiln comprises a kiln body 1, the top of the kiln body 1 is provided with an air preheating assembly 2 for air preheating; the inner cavity of the kiln body 1 is provided with a partition 18, the partition 18 divides the inner cavity of the kiln body 1 into a combustion chamber and a preheating chamber, the top of the combustion chamber is provided with a smoke outlet 16, the top of the preheating chamber is provided with a heat recovery port 17, the other end of the smoke outlet 16 and the heat recovery port 17 is in communication with the air preheating assembly 2; the air preheating assembly 2 comprises a preheating box 201, a plurality of filter screens 202 for filtering waste gas are arranged inside the preheating box 201, a connecting branch pipe 206 is arranged on each filter screen 202, the other end of the connecting branch pipe 206 is connected with a connecting pipe 205, the connecting pipe 205 is provided with a heat recovery pipe 207, the heat recovery pipe 207 is provided with a fan 208 for air circulation, the other end of the heat recovery pipe 207 is in communication with the heat recovery port 17, one side of the preheating box 201 is further provided with a smoke inlet pipe 204 in communication with the smoke outlet 16 and a smoke exhaust pipe 203 for waste gas discharge.

[0024] As a preferred technical solution in the embodiment: in the actual use process, when the kiln body 1 starts to work, the high-temperature waste gas generated when the combustion chamber starts to burn will enter into the preheating box 201 through the smoke inlet pipe 204, then the worker can start the fan 208 to make it pass the high-temperature gas in the preheating box 201 into the heat recovery port 17, in this process, the high-temperature gas will enter into the connecting branch pipe 206 after being filtered by the filter screen 202, then enter into the preheating chamber through the connecting pipe 205 and the heat recovery pipe 207 to realize the effect of air preheating.

[0025] When the filter screen 202 needs to be cleaned, the worker can make the fan 208 generate reverse air flow, so that the gas can enter the filter screen 202 through the heat recovery pipe 207 and the connecting branch pipe 206, realize the reverse blowing of the filter screen 202, and make the dust and sundries attached to the filter screen 202 fall off, thereby realizing the effect of automatically cleaning the filter screen 202, and effectively avoiding the occurrence of the pipe blockage.

[0026] As a preferred technical solution in the embodiment: the filter screen 202 is a cylindrical filter screen, the bottom of which is connected with the connecting pipe 205, and the electromagnetic valve 209 is arranged on the smoke inlet pipe 204 and the smoke exhaust pipe 203. When the worker cleans the filter screen 202, the worker can control the electromagnetic valve 209 on the smoke inlet pipe 204 to be closed, thereby avoiding the situation that the dust falling off the filter screen 202 during the cleaning process enters the combustion chamber and pollutes the combustion chamber. At the same time, the worker can control the electromagnetic valve 209 on the smoke exhaust pipe 203 to be opened, so as to realize the effect that the dust generated during the cleaning process is exhausted from the smoke exhaust pipe 203.

[0027] It is worth noting that when the air in the preheating chamber is preheated, the worker should close the electromagnetic valve 209 on the smoke exhaust pipe 203 and open the electromagnetic valve 209 on the smoke inlet pipe 204, so as to realize the effect of effective air preheating.

[0028] As a preferred technical solution in the embodiment: the kiln body 1 is provided with a support frame 12 for supporting, the kiln body 1 is provided with a sealing door 11 for sealing at the feeding port, and the support frame 12 is slidingly connected to the sealing door 11. The partition plate 18 is further rotatably connected with a sealing baffle 19 for sealing. The kiln body 1 is further provided with a feeding trolley 13, which comprises a feeding support plate 14 for feeding and a guide column 15 for guiding, and the guide column 15 is slidingly connected to the support frame 12.

[0029] In actual use, when the worker needs to heat the raw materials, the worker can place the raw materials to be heated and the raw materials to be preheated on the feeding support plate 14, and then feed the raw materials into the corresponding area. When the raw materials are placed, the worker can separate the raw materials by rotating the sealing baffle 19, so as to ensure that the combustion chamber and the preheating chamber are not affected.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for a ceramic kiln comprising a kiln body (1), characterized in that: The top of the kiln body (1) is provided with an air preheating assembly (2) for air preheating. The inner cavity of the kiln body (1) is provided with a partition plate (18), which divides the inner cavity of the kiln body (1) into a combustion chamber and a preheating chamber. The top of the combustion chamber is provided with a smoke exhaust port (16), and the top of the preheating chamber is provided with a heat recovery port (17). The other end of the smoke exhaust port (16) and the heat recovery port (17) is in communication with the air preheating assembly (2). The air preheating assembly (2) comprises a preheating box (201), and a plurality of filter screens (202) for filtering exhaust gas are arranged in the preheating box (201). Each filter screen (202) is provided with a connecting branch pipe (206), and the other end of the connecting branch pipe (206) is connected with a connecting pipe (205). The connecting pipe (205) is provided with a heat recovery pipe (207), and the heat recovery pipe (207) is provided with a fan (208) for air circulation. The other end of the heat recovery pipe (207) is in communication with the heat recovery port (17). The preheating box (201) is further provided with an inlet smoke pipe (204) connected with the smoke exhaust port (16) and an exhaust smoke pipe (203) for discharging waste.

2. A waste heat recovery device for a ceramic kiln according to claim 1, characterized in that: The filter screen (202) is a cylindrical filter screen, and the bottom thereof is in communication with the connecting pipe (205).

3. A waste heat recovery device for a ceramic kiln according to claim 1, characterized in that: The inlet smoke pipe (204) and the exhaust smoke pipe (203) are both provided with electromagnetic valves (209).

4. A waste heat recovery device for a ceramic kiln according to claim 1, characterized in that: The kiln body (1) is provided with a support frame (12) for supporting, and the inlet of the kiln body (1) is provided with a sealing door (11) for sealing.

5. A waste heat recovery device for a ceramic kiln according to claim 1, characterized in that: The partition plate (18) is further rotatably connected with a sealing baffle (19) for sealing.

6. A waste heat recovery device for a ceramic kiln according to claim 4, wherein The kiln body (1) is further provided with a feeding trolley (13), which comprises a feeding support plate (14) for feeding and a guide column (15) for guiding. The guide column (15) is slidingly connected to the support frame (12).

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