Efficient and energy-saving ceramic handicraft firing kiln

Abstract

The utility model discloses a high-efficiency energy-saving ceramic handicraft firing kiln, which comprises a kiln body and has the beneficial effects that a kiln car and a firing frame are arranged, so that the kiln car can be pulled out of the kiln body, the kiln car is supported in an auxiliary manner through a guide roller at the top of a guide support plate, and the kiln car and the firing frame are pulled out, so that the kiln car can be conveniently fired. Ceramic needing to be fired can be conveniently placed on the firing frame, the position of the kiln car in the kiln body is jacked and fixed through the inner jacking block on the inner side of the kiln door, the kiln car and the firing frame are stably placed in the kiln body, the stability of the position during ceramic firing is improved, and through the arrangement of the heat preservation box and the heat exchange copper gas pipe, high-temperature smoke in the heat preservation box is achieved; gas treated by the oxygen enrichment device in the heat exchange copper gas pipe is heated, the temperature of combustion-supporting gas is increased, the combustion-supporting gas is mixed with gas supplied by the gas pipe in the concentration gas box, the mixture is sprayed out through the ventilation box and the combustion nozzle, ignition is conducted through the ignition rod, and ceramic firing is conducted through fuel.

Description

Technical Field

[0001] The utility model relates to the technical field of kilns, in particular to a high-efficiency and energy-saving kiln for firing ceramic handicrafts. Background Art

[0002] Intermittent kilns are a common type of kiln in industrial production. Their characteristic is that the combustion device will stop after completing a production cycle and start the next production cycle. Compared with continuous kilns, intermittent kilns have unique advantages and application scenarios. In the firing of ceramic handicrafts, the required firing temperature is high and the firing time is long. Most of them use intermittent kilns. When the ceramic handicrafts are fired, they are pushed into the kiln for firing by a kiln car. After burning, they are pulled out in the opposite direction to unload the fired ceramics. Intermittent kilns fire ceramic handicrafts intermittently, resulting in the loss of stored heat in the kiln. It does not have a heat recovery function for the high-temperature flue gas discharged from the kiln. When the amount of oxygen entering the kiln is insufficient, it also affects the full combustion of the gas, and also causes the problem of unstable firing quality of ceramic handicrafts. Utility Model Content

[0003] The purpose of the utility model is to provide a high-efficiency and energy-saving kiln for firing ceramic handicrafts, so as to solve the problems raised in the above-mentioned background technology that the high-temperature flue gas discharged from the kiln has no heat recovery function, insufficient oxygen entering the kiln also affects the full combustion of the gas, and also causes unstable firing quality of ceramic handicrafts.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a high-efficiency and energy-saving kiln for firing ceramic handicrafts, comprising:

[0005] Kiln body;

[0006] Support inner blocks, which are symmetrically arranged on the inner side of the kiln body;

[0007] A ventilation box, which is arranged on the top of the supporting inner block;

[0008] A combustion nozzle, the combustion nozzle is equidistantly installed on the top of the ventilation box, and an ignition rod is installed on the top of the combustion nozzle;

[0009] A centralized air box, which is arranged on one side of the ventilation box, and the ventilation box is connected to the centralized air box;

[0010] An oxygen enrichment device is installed on one side of the kiln body, and the oxygen enrichment device is connected to the centralized air box through an air duct;

[0011] An insulation box, which is arranged on one side of the kiln body, and connecting ventilation boxes are arranged on both sides of the insulation box, one of which is connected to the oxygen enrichment device through an air duct, a No. 1 exhaust pipe is arranged at the bottom of the insulation box, one end of which is fixedly connected to the kiln body, and the other connecting ventilation box is connected to the centralized air box through an insulation pipe;

[0012] The heat exchange copper air pipe is arranged inside the heat preservation box, and the two connecting air boxes are connected through the heat exchange copper air pipe.

[0013] As a preferred solution of the utility model: it also includes a kiln car, which is slidably arranged on the inner side of the supporting inner block, and a firing frame is fixedly connected to the top of the kiln car. Limiting side plates are fixedly connected on both sides of the kiln car. The limiting side plates are slidably connected to the supporting inner block, and sliding side grooves are opened on the outer side of the limiting side plates. A plurality of auxiliary rollers cooperating with the sliding side grooves are equidistantly installed inside the supporting inner block.

[0014] As a preferred solution of the utility model: it also includes a supporting side seat, which is fixedly connected to one side of the kiln body, and a hydraulic cylinder is symmetrically installed inside the supporting side seat, and a guide support plate is fixedly connected to the output end of the hydraulic cylinder, and a limiting slide is symmetrically fixedly connected to the bottom of the guide support plate, and the limiting slide is slidably arranged with the supporting side seat, and guide rollers are symmetrically installed on the top of the guide support plate.

[0015] As a preferred solution of the utility model: a kiln door is installed on one side of the kiln body, and an inner top block cooperating with the kiln car is symmetrically fixed to the inner side of the kiln door.

[0016] As a preferred solution of the utility model: an air intake fan is installed on one side of the kiln body, a filter mesh tube is fixedly connected to the input end of the air intake fan, and the output end of the air intake fan is connected to the oxygen enrichment device through an air duct.

[0017] As a preferred solution of the utility model: a No. 2 smoke exhaust pipe is fixedly connected to the top of the heat preservation box, a gas pipe is fixedly connected to one side of the centralized gas box, and the gas pipe is fixedly connected to the kiln body.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes pulling the kiln car out of the kiln body by arranging a kiln car and a firing rack, and auxiliary support is provided to the kiln car by the guide rollers on the top of the guide support plate, so that the kiln car and the firing rack can be pulled out, and the ceramics to be fired can be conveniently placed on the firing rack, and the position of the kiln car in the kiln body is fixed by the inner top block on the inner side of the kiln door, so that the kiln car and the firing rack are stably placed in the kiln body, and the position stability during ceramic firing is improved; the high-temperature flue gas in the heat-insulating box is realized by arranging a heat-exchanging copper gas pipe, and the gas treated by the oxygen-enriching device passing through the heat-exchanging copper gas pipe is heated, the temperature of the combustion-supporting gas is increased, and it is mixed with the supply gas of the gas pipe in the centralized gas box, sprayed out through the ventilation box and the combustion nozzle, ignited by the ignition rod, and ceramics are fired by the fuel. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a rear view of the utility model;

[0021] Figure 3 It is the right view of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the kiln car and firing frame of the utility model;

[0023] Figure 5 It is a front view of the utility model.

[0024] In the figure: 1. kiln body; 2. kiln door; 3. kiln car; 4. firing frame; 5. supporting inner block; 6. limiting side plate; 7. sliding side groove; 8. auxiliary roller; 9. ventilation box; 10. combustion nozzle; 11. ignition rod; 12. centralized gas box; 13. supporting side seat; 14. hydraulic cylinder; 15. limiting slide plate; 16. guide support plate; 17. guide roller; 18. inner top block; 19. gas pipe; 20. heat exchange copper gas pipe; 21. oxygen enrichment device; 22. No. 1 exhaust pipe; 23. insulation box; 24. No. 2 exhaust pipe; 25. connecting air box; 26. intake fan; 27. filter mesh pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 5 The utility model provides a technical solution: a high-efficiency and energy-saving kiln for firing ceramic handicrafts, comprising: a kiln body 1; a supporting inner block 5 symmetrically fixed to the inner side of the kiln body 1; a ventilation box 9 fixed to the top of the supporting inner block 5; a combustion nozzle 10 equidistantly installed on the top of the ventilation box 9, and an ignition rod 11 is installed on the top of the combustion nozzle 10; a centralized air box 12 fixed to one side of the ventilation box 9, the ventilation box 9 is connected to the centralized air box 12, and the centralized air box 12 is fixed to the kiln body 1 ; The oxygen enrichment device 21 is installed on one side of the kiln body 1, and the oxygen enrichment device 21 is connected to the centralized air box 12 through an air duct; the heat preservation box 23 is fixedly connected to one side of the kiln body 1, and both sides of the heat preservation box 23 are fixedly connected with connecting air boxes 25, one of which is connected to the oxygen enrichment device 21 through an air duct, and the bottom of the heat preservation box 23 is fixedly connected to a No. 1 exhaust pipe 22, one end of the No. 1 exhaust pipe 22 is fixedly connected to the kiln body 1, and the other connecting air box 25 is connected to the centralized air box 12. The two connecting air boxes 25 are connected through an insulation pipe; the heat exchange copper air pipe 20 is fixedly connected to the inside of the insulation box 23, and the two connecting air boxes 25 are connected through the heat exchange copper air pipe 20; the oxygen enrichment device 21 is a device for increasing the oxygen concentration in the air, which mainly separates oxygen from the air through a series of technical means, and supplies the enriched oxygen to the occasions where high concentration oxygen is required. The working principle of the oxygen enrichment device 21 generally includes: filtering the air through primary, intermediate and advanced filters to remove impurities and dust therein to ensure the quality of the air entering the subsequent processing stage; the filtered air enters the gas separation membrane or molecular sieve separation device, and the physical or chemical properties of gases such as oxygen and nitrogen are used under specific conditions to separate oxygen from the air; after separating the oxygen, the oxygen needs to be further removed and dried, and usually a molecular sieve device is used to remove impurities such as moisture and carbon dioxide in the oxygen to obtain high-purity oxygen;

[0027] The operating principle of the ignition rod 11 generally involves the release of an electric spark or compressed gas to generate sufficient energy to ignite the fuel.

[0028] It can be understood that the utility model opens the kiln door 2, pulls out the kiln car 3 through a tool, and the kiln car 3 drives the firing frame 4 to move outward, controls the device through an external controller, powers on through an external power supply, and starts the hydraulic cylinder 14. The output end of the hydraulic cylinder 14 drives the guide support plate 16 and the guide roller 17 to move upward, and the bottom of the kiln car 3 is supported by the guide roller 17. When the kiln car 3 moves, it drives the supporting inner block 5 and the sliding side groove 7 to move, and the sliding side groove 7 and the auxiliary roller 8 cooperates to assist in supporting the movement of the kiln car 3, places the ceramic crafts to be fired on the firing rack 4, slowly pushes the kiln car 3 and the firing rack 4 into the kiln body 1, closes the kiln door 2, and the kiln door 2 drives the inner top block 18 on the inside to push the kiln car 3, stabilizes the position of the kiln car 3 and the firing rack 4, and starts the air intake fan 26, which draws external air in through the filter mesh pipe 27, and enters the oxygen enrichment device 21 through the output end of the air intake fan 26, and the oxygen enrichment device 21 purifies the air in the air. The oxygen concentration is increased, and after being processed by the oxygen enrichment device 21, it enters the connecting ventilation box 25 and each heat exchange copper gas pipe 20, and enters another connecting ventilation box 25 through the heat exchange copper gas pipe 20, and enters the centralized gas box 12. The gas pipe 19 inputs gas into the centralized gas box 12, and the combustion-supporting gas is mixed with the gas and enters the two ventilation boxes 9, and is sprayed out through the combustion nozzle 10 on the top of the ventilation box 9. The gas is ignited by the ignition rod 11. The gas treated by the oxygen enrichment device 21 improves the efficiency of gas combustion, and the ceramic handicrafts on the firing rack 4 are fired by flame spraying. The fired flue gas is discharged through the No. 1 exhaust pipe 22, and the high-temperature flue gas enters the heat preservation box 23 and is discharged through the No. 2 exhaust pipe 24. The high-temperature flue gas in the heat preservation box 23 is used to heat the gas in the heat exchange copper gas pipe 20, and the temperature of the gas entering the kiln body 1 is increased. The stored heat in the kiln body 1 is also recovered to prevent the waste of gas and utilize the high-temperature flue gas.

[0029] See also Figures 4 to 5 , and also includes a kiln car 3, which is slidably arranged on the inner side of the supporting inner block 5, a firing frame 4 is fixedly connected to the top of the kiln car 3, and both sides of the kiln car 3 are fixedly connected to limit side plates 6, the limit side plates 6 are slidably connected to the supporting inner block 5, and a sliding side groove 7 is opened on the outer side of the limit side plate 6, and a plurality of auxiliary rollers 8 cooperating with the sliding side grooves 7 are equidistantly installed inside the supporting inner block 5.

[0030] It can be understood that the utility model drives the supporting inner block 5 and the sliding side groove 7 to move when the kiln car 3 moves, and the sliding side groove 7 cooperates with the auxiliary roller 8 to assist in supporting the movement of the kiln car 3, and the ceramic crafts to be fired are placed on the firing rack 4, and the kiln car 3 and the firing rack 4 are slowly pushed into the kiln body 1.

[0031] See also Figure 1 and Figure 5, and also includes a supporting side seat 13, which is fixedly connected to one side of the kiln body 1, and a hydraulic cylinder 14 is symmetrically installed inside the supporting side seat 13, and a guide support plate 16 is fixedly connected to the output end of the hydraulic cylinder 14, and a limiting slide plate 15 is symmetrically fixed to the bottom of the guide support plate 16, and the limiting slide plate 15 is slidably arranged with the supporting side seat 13, and a guide roller 17 is symmetrically installed on the top of the guide support plate 16.

[0032] It is understandable that the output end of the hydraulic cylinder 14 of the utility model drives the guide support plate 16 and the guide roller 17 to move upward, and the bottom of the kiln car 3 is supported by the guide roller 17, thereby improving the stability of the kiln car 3 when placing and removing ceramic crafts.

[0033] See also Figure 1 and Figure 5 A kiln door 2 is installed on one side of the kiln body 1, and an inner top block 18 cooperating with the kiln car 3 is symmetrically fixed to the inner side of the kiln door 2.

[0034] It is understandable that the utility model drives the inner top block 18 inside the kiln door 2 to push the kiln car 3, stabilizes the positions of the kiln car 3 and the firing rack 4, and facilitates the removal and placement stability of ceramic handicrafts.

[0035] See also Figures 1 to 3 An air intake fan 26 is installed on one side of the kiln body 1, and a filter mesh tube 27 is fixedly connected to the input end of the air intake fan 26, and the output end of the air intake fan 26 is connected to the oxygen enrichment device 21 through an air duct.

[0036] It can be understood that the utility model supplies air to the combustion in the kiln body 1 through the air intake fan 26 to perform combustion-supporting treatment, and filters the gas entering the air intake fan 26 for impurities through the filter mesh tube 27.

[0037] See also Figures 2 to 3 A second smoke exhaust pipe 24 is fixedly connected to the top of the heat preservation box 23 , a gas pipe 19 is fixedly connected to one side of the centralized gas box 12 , and the gas pipe 19 is fixedly connected to the kiln body 1 .

[0038] It is understandable that the utility model discharges the high-temperature flue gas in the heat preservation box 23 through the No. 2 smoke exhaust pipe 24, and the high-temperature flue gas in the heat preservation box 23 increases the gas temperature in the heat exchange copper gas pipe 20.

[0039] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0041] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving kiln for firing ceramic handicrafts, characterized in that: include: Kiln body (1); A supporting inner block (5), the supporting inner block (5) being symmetrically arranged on the inner side of the kiln body (1); A ventilation box (9), the ventilation box (9) is arranged on the top of the supporting inner block (5); A combustion nozzle (10), the combustion nozzle (10) is equidistantly mounted on the top of the ventilation box (9), and an ignition rod (11) is mounted on the top of the combustion nozzle (10); A centralized air box (12), the centralized air box (12) being arranged on one side of the ventilation box (9), the ventilation box (9) and the centralized air box (12) being in communication with each other; An oxygen enrichment device (21), the oxygen enrichment device (21) is installed on one side of the kiln body (1), and the oxygen enrichment device (21) is connected to the centralized air box (12) via an air duct; An insulation box (23), the insulation box (23) is arranged on one side of the kiln body (1), and connecting ventilation boxes (25) are arranged on both sides of the insulation box (23), one of the connecting ventilation boxes (25) is connected to the oxygen enrichment device (21) through an air duct, a first smoke exhaust pipe (22) is arranged at the bottom of the insulation box (23), one end of the first smoke exhaust pipe (22) is fixedly connected to the kiln body (1), and the other connecting ventilation box (25) is connected to the centralized air box (12) through an insulation pipe; A heat exchange copper air pipe (20) is arranged inside the heat preservation box (23), and the two connecting air boxes (25) are connected through the heat exchange copper air pipe (20).

2. The high-efficiency and energy-saving ceramic handicraft firing kiln according to claim 1, characterized in that: The invention also comprises a kiln car (3), which is slidably arranged on the inner side of the supporting inner block (5), a firing frame (4) is fixedly connected to the top of the kiln car (3), and limiting side plates (6) are fixedly connected to both sides of the kiln car (3), the limiting side plates (6) are slidably connected to the supporting inner block (5), a sliding side groove (7) is formed on the outer side of the limiting side plate (6), and a plurality of auxiliary rollers (8) cooperating with the sliding side grooves (7) are equidistantly installed inside the supporting inner block (5).

3. The high-efficiency and energy-saving ceramic handicraft firing kiln according to claim 1, characterized in that: The invention also comprises a supporting side seat (13), the supporting side seat (13) is fixedly connected to one side of the kiln body (1), a hydraulic cylinder (14) is symmetrically installed inside the supporting side seat (13), the output end of the hydraulic cylinder (14) is fixedly connected to a guide support plate (16), the bottom of the guide support plate (16) is symmetrically fixedly connected to a limiting slide plate (15), the limiting slide plate (15) is slidably arranged with the supporting side seat (13), and a guide roller (17) is symmetrically installed on the top of the guide support plate (16).

4. The high-efficiency and energy-saving ceramic handicraft firing kiln according to claim 2, characterized in that: A kiln door (2) is installed on one side of the kiln body (1), and an inner top block (18) cooperating with a kiln car (3) is symmetrically fixed to the inner side of the kiln door (2).

5. The high-efficiency and energy-saving ceramic handicraft firing kiln according to claim 1, characterized in that: An air intake fan (26) is installed on one side of the kiln body (1), the input end of the air intake fan (26) is fixedly connected to a filter mesh tube (27), and the output end of the air intake fan (26) is connected to the oxygen enrichment device (21) through an air duct.

6. The high-efficiency and energy-saving ceramic handicraft firing kiln according to claim 1, characterized in that: A second smoke exhaust pipe (24) is fixedly connected to the top of the heat preservation box (23), a fuel gas pipe (19) is fixedly connected to one side of the centralized gas box (12), and the fuel gas pipe (19) is fixedly connected to the kiln body (1).

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