Industrial kiln material cooling system

Abstract

The utility model belongs to the field of industrial kilns, and particularly relates to an industrial kiln material cooling system which comprises a water cooling shell, a water cooling transmission roller assembly and a cooling liquid circulation supply device. A cooling liquid flow channel is arranged in the shell wall of the water-cooling shell; the water-cooling transmission roller assembly comprises a roller body, a rotary driving device and a rotary joint, the roller body is rotationally arranged in the water-cooling shell, the two ends of the roller body extend out of the two side walls of the water-cooling shell, the rotary driving device is arranged on one outer side wall of the water-cooling shell, and the rotary joint is arranged on the other outer side wall of the water-cooling shell and is rotationally connected with a liquid inlet and a liquid outlet of the roller body; and the cooling liquid circulating supply device is connected with the liquid inlet pipe, the liquid outlet pipe and the rotary joint through pipelines. The water-cooling shell and the water-cooling transmission roller assembly are cooled, the problem that the water-cooling shell and the roller body are deformed due to too high temperature can be avoided, meanwhile, materials are directly subjected to heat exchange through the roller body, cooling of the materials can be accelerated, the length of a cooling section is shortened, and economic benefits are improved.

Description

Technical Field

[0001] The utility model belongs to the field of industrial kilns, and specifically relates to an industrial kiln material cooling system. Background Art

[0002] In the production process of traditional industrial kilns, cooling of materials is an important link to ensure product quality and improve production efficiency. At present, most industrial kilns mainly rely on the delivery of cold air to reduce the temperature of materials in the kiln. Specifically, the fan at the end of the kiln introduces external cold air or external cold source into the kiln, so that the cold air or cold source directly contacts the high-temperature material for heat exchange, thereby achieving the purpose of cooling.

[0003] This traditional cooling method can reduce the temperature of the material to a certain extent, but it has many shortcomings. First, the fired products are mostly box-type items with lids, which have large heat storage and require a long cooling time, which obviously cannot meet the needs of modern industrial production for high efficiency, high stability and high quality; second, in the kiln with atmosphere protection, the interference of external air should be minimized to avoid reducing product quality, which also limits the application of air cooling.

[0004] Based on these problems, the Chinese patent "CN206362169U-An atmosphere-protected roller kiln with air-water dual cooling device" proposes an air-water dual cooling track kiln, but it only cools the kiln body, while the material is actually in contact with the roller body, resulting in poor heat exchange effect on the material. In addition, the overall structure is complex, which is not conducive to long-term stable use. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide an industrial furnace material cooling system with simple structure, high cooling efficiency and stable operation.

[0006] The utility model provides an industrial kiln material cooling system, comprising a water-cooled shell, a water-cooled transmission roller assembly and a coolant circulation supply device;

[0007] A coolant flow channel is arranged in the shell wall of the water-cooling shell, and a liquid inlet pipe and a liquid outlet pipe connected to the coolant flow channel are arranged at opposite ends of the water-cooling shell;

[0008] The water-cooled transmission roller assembly includes a roller body, a rotation driving device and a rotation joint. The roller body has a hollow cavity inside and a liquid inlet and outlet is arranged at one end of the hollow cavity. The roller body is rotatably arranged in a water-cooled shell, and the two ends of the roller body extend out of the two side walls of the water-cooled shell. The rotation driving device is arranged outside one side wall of the water-cooled shell to drive the roller body to rotate. The rotation joint is arranged outside the other side wall of the water-cooled shell and is rotationally connected to the liquid inlet and outlet.

[0009] The coolant circulation supply device is connected with a liquid inlet pipe, a liquid outlet pipe and a rotary joint through pipelines, so that the coolant can be continuously circulated in the coolant flow channel and the hollow cavity.

[0010] Furthermore, the water-cooled outer shell includes an inner water jacket plate and an outer water jacket plate in a rectangular structure. The outer water jacket plate is arranged outside the inner water jacket plate. The inner wall of the outer water jacket plate and the outer wall of the inner water jacket plate enclose a coolant flow channel. The water-cooled outer shell also includes a flange plate connecting the two ends of the inner water jacket plate and the outer water jacket plate.

[0011] Furthermore, the water-cooling housing further comprises a plurality of guide plates arranged in the coolant flow channel, and the plurality of guide plates enable the coolant flow channel to be arranged in a serpentine shape.

[0012] Furthermore, the rollers are rotatably arranged on both side walls of the water-cooling shell through bearings.

[0013] Furthermore, the rollers and the rotary joints are arranged in a plurality of groups at intervals along the channel direction of the water-cooling housing;

[0014] The rotary drive device drives several rollers to rotate synchronously.

[0015] Furthermore, the roller body is made of metal material.

[0016] Furthermore, the rotary joint includes a joint body and a water inlet pipe, and the joint body is provided with a stepped hole penetrating through both ends;

[0017] One end of the water inlet pipe is tightly matched with the small hole of the step hole, and the other end passes through the large hole of the step hole and extends into the hollow cavity;

[0018] The inner wall of the large hole of the step hole and the inner wall of the liquid inlet and outlet are combined with the outer wall of the water inlet pipe to form a water outlet channel. The large hole of the step hole is provided with a liquid outlet, which is connected to the water outlet channel.

[0019] Furthermore, the coolant circulation supply device also includes a temperature sensor for measuring the temperature of the coolant in the coolant flow channel and the hollow cavity;

[0020] The pipelines of the coolant circulation supply device connected to the water-cooled shell and the pipelines connected to the roller body are both provided with flow detectors;

[0021] The coolant circulation supply device also includes a controller, which adjusts the flow rate provided to the pipeline according to the temperature detected by the temperature sensor.

[0022] Furthermore, the coolant circulation supply device also includes a valve for controlling the on-off of the liquid inlet pipe and the water inlet pipe in the rotary joint, and the valve is electrically connected to the controller.

[0023] The beneficial effect of the utility model is that the industrial kiln material cooling system provided by the utility model cools the water-cooled shell and the water-cooled transmission roller assembly through the coolant circulation supply device, which can avoid the problem of deformation of the water-cooled shell and the roller body due to excessive temperature. At the same time, the material directly exchanges heat through the roller body, which can speed up the cooling of the material. Under the same process conditions, the length of the cooling section is shortened, the economic benefit is improved, and the stability of the kiln operation is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Attached Figure 2 For attachment Figure 1 A partial enlarged view of the middle rotary joint;

[0026] Attached Figure 3 It is a schematic diagram of the structure of the water-cooling housing in the utility model;

[0027] Attached Figure 4 It is a front cross-sectional view of the water-cooling housing in the utility model;

[0028] Attached Figure 5 For attachment Figure 4 A partial enlarged view of the middle A;

[0029] Attached Figure 6 For attachment Figure 4 A partial enlarged view of point B in the middle;

[0030] Attached Figure 7 It is a partial cross-sectional view of the water-cooling housing in the utility model;

[0031] Attached Figure 8 It is a partial front cross-sectional view of the water-cooled transmission roller assembly in the utility model.

[0032] In the figure, 1-water-cooled shell; 11-coolant flow channel; 12-liquid inlet pipe; 13-liquid outlet pipe; 14-inner water jacket plate; 15-outer water jacket plate; 16-guide plate; 17-flange plate; 2-water-cooled transmission roller assembly; 21-roller body; 211-hollow cavity; 212-liquid inlet and outlet; 22-rotational drive device; 23-rotating joint; 231-joint body; 2311-step hole; 2312-liquid outlet; 232-water inlet pipe; 233-water outlet channel; 3-material. DETAILED DESCRIPTION

[0033] 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 of 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.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] As attached Figure 1 -Attached Figure 8 As shown, the utility model provides an industrial kiln material cooling system, including a water-cooled shell 1, a water-cooled drive roller assembly 2 and a coolant circulation supply device, wherein the water-cooled shell 1 is used as the furnace body of the industrial kiln, preferably used in the cooling section of the industrial kiln, the water-cooled drive roller assembly 2 is used as a conveying component of the industrial kiln, and the material 3 is transported and moved inside the water-cooled shell 1 through the roller body 21 in the water-cooled drive roller assembly 2, and the coolant circulation supply device is used to provide coolant to the water-cooled structure of the water-cooled shell 1 and the water-cooled drive roller assembly 2, thereby cooling the water-cooled shell 1 and the water-cooled drive roller assembly 2, which not only ensures the structural stability thereof, but also provides a low-temperature environment inside the water-cooled shell 1, and assists in cooling the material 3;

[0038] A coolant flow channel 11 is provided in the shell wall of the water-cooled shell 1, and a liquid inlet pipe 12 and a liquid outlet pipe 13 connected to the coolant flow channel 11 are provided at opposite ends of the water-cooled shell 1. A coolant circulation supply device is connected to the liquid inlet pipe 12 and the liquid outlet pipe 13 through a pipeline, and the coolant is input from the liquid inlet pipe 12 into the coolant flow channel 11, and after heat exchange with the shell wall of the water-cooled shell 1, the coolant is finally returned to the coolant flow channel 11 from the liquid outlet pipe 13, so as to realize continuous cooling of the water-cooled shell 1;

[0039] The water-cooled transmission roller assembly 2 includes a roller body 21, a rotation driving device 22 and a rotation joint 23. The roller body 21 has a hollow cavity 211 inside and a liquid inlet and outlet 212 at one end of the hollow cavity 211. The roller body 21 is rotatably arranged in the water-cooled shell 1, and the two ends of the roller body 21 extend out of the two side walls of the water-cooled shell 1. The rotation driving device 22 is arranged on one of the outer side walls of the water-cooled shell 1 to drive the roller body 21 to rotate. The rotation joint 23 is arranged on the other outer side wall of the water-cooled shell 1 and is rotationally connected to the liquid inlet and outlet 212. The rotation driving device 22 and the rotation joint 23 are arranged on the outside of the water-cooled shell 1, which can be away from the high temperature environment in the water-cooled shell 1, thereby improving The service life and stability of the rotary drive device 22 and the rotary joint 23 are improved. The rotary joint 23 is rotationally connected to the liquid inlet and outlet 212. During the rotation of the roller body 21, the rotary joint 23 is fixed and continuously inputs and discharges cooling liquid into and out of the hollow cavity 211, thereby continuously cooling the roller body 21. On the one hand, the problem of structural deformation of the roller body 21 due to excessive temperature can be avoided. On the other hand, the material 3 moves directly above the roller body 21, and the coolant flowing inside the roller body 21 can take away a large amount of heat from the material 3, thereby accelerating the cooling speed of the material 3, shortening the length of the cooling section in the industrial kiln, and improving the economy of the equipment.

[0040] The coolant circulation supply device connects the liquid inlet pipe 12, the liquid outlet pipe 13 and the rotary joint 23 through pipelines, so that the coolant can be continuously circulated in the coolant flow channel 11 and the hollow cavity 211. Specifically, the rotary joint 23 has a water inlet pipe 232 and a liquid outlet 2312, and the coolant circulation supply device connects the water inlet pipe 232 and the liquid outlet 2312 through pipelines. Specifically, the coolant circulation supply device has two water inlet pipes and two water return pipes, the two water inlet pipes are respectively connected to the water inlet pipe 232 and the liquid inlet pipe 12, and the two water return pipes are respectively connected to the liquid outlet 2312 and the liquid outlet pipe 13.

[0041] The industrial kiln material cooling system provided by the utility model cools the water-cooled shell 1 and the water-cooled transmission roller assembly 2 through a coolant circulation supply device, thereby avoiding the problem of deformation of the water-cooled shell 1 and the roller body 21 due to excessive temperature. At the same time, the material 3 directly exchanges heat through the roller body 21, which can accelerate the cooling of the material 3. Under the same process conditions, the length of the cooling section is shortened, the economic benefit is improved, and the stability of the kiln operation is ensured.

[0042] In one embodiment, the water-cooled shell 1 includes an inner water jacket plate 14 and an outer water jacket plate 15 in a rectangular structure. The outer water jacket plate 15 is arranged outside the inner water jacket plate 14. The inner wall of the outer water jacket plate 15 and the outer wall of the inner water jacket plate 14 enclose a coolant flow channel 11. The water-cooled shell 1 also includes a flange plate 17 connecting the two ends of the inner water jacket plate 14 and the outer water jacket plate 15. The two flange plates 17 are used to fix the positions of the outer water jacket plate 15 and the inner water jacket plate 14, and at the same time block the two sides of the coolant flow channel 11, so that the coolant flow channel 11 is a closed mechanism. In addition, the side walls of the inner water jacket plate 14 and the outer water jacket plate 15 are provided with through holes for rotating the connecting roller body 21. The two through holes are provided with connecting rings, and the coolant flow channel 11 bypasses the connecting rings to circulate the coolant.

[0043] In one embodiment, the water-cooled casing 1 further includes a plurality of guide plates 16 disposed in the coolant flow channel 11. The plurality of guide plates 16 cause the coolant flow channel 11 to be arranged in a serpentine shape, thereby maximizing the flow coverage area of ​​the coolant, greatly improving the heat exchange efficiency, and at the same time increasing the cooling speed of the material 3.

[0044] In one embodiment, the roller body 21 is rotatably disposed on both side walls of the water-cooling housing 1 through bearings, that is, the roller body 21 is directly rotatably connected to the side walls of the water-cooling housing 1, without the need for additional rotation support structures for the roller body 21. Specifically, the outer ring of the bearing is disposed on the through hole of the water-cooling housing 1, and the roller body 21 is disposed on the inner ring of the bearing.

[0045] In one embodiment, a plurality of roller bodies 21 and rotary joints 23 are arranged in intervals along the channel direction of the water-cooled shell 1; the rotary drive device 22 drives a plurality of roller bodies 21 to rotate synchronously, so that the plurality of roller bodies 21 are active rotating rollers, thereby improving the material conveying effect.

[0046] In one of the embodiments, the roller body 21 is made of metal material. The strength and rigidity of the metal roller body 21 are greatly enhanced compared to the ceramic roller body, and the metal roller body 21 has high stability and is not easily damaged, thereby reducing the equipment failure rate. At the same time, by setting a cooling structure, the deformation problem of the metal roller body 21 caused by excessive temperature can be avoided.

[0047] In one embodiment, referring to the attached Figure 8The rotary joint 23 includes a joint body 231 and a water inlet pipe 232. The joint body 231 is provided with a stepped hole 2311 penetrating through both ends;

[0048] One end of the water inlet pipe 232 is tightly matched with the small hole of the step hole 2311, and the port of the end is used to connect with the coolant circulation supply device to input the coolant, and the other end passes through the large hole of the step hole 2311 and extends into the hollow cavity 211, and has a certain distance from the end of the hollow cavity 211, so as to transport the coolant into the hollow cavity 211;

[0049] The inner wall of the large hole of the step hole 2311 and the inner wall of the liquid inlet and outlet 212 are combined with the outer wall of the water inlet pipe 232 to form a water outlet channel 233. The large hole of the step hole 2311 is provided with a liquid outlet 2312, and the liquid outlet 2312 is connected to the water outlet channel 233. In this way, the coolant that has undergone heat exchange in the hollow cavity 211 flows back to the coolant circulation supply device from the water outlet channel 233 and the liquid outlet 2312.

[0050] In one embodiment, the cooling liquid circulation supply device further includes a temperature sensor for monitoring the temperature of the cooling liquid in the cooling liquid channel 11 and the hollow cavity 211;

[0051] The pipeline of the cooling liquid circulation supply device connected to the water-cooled shell 1 and the pipeline connected to the roller body 21 are both provided with flow detectors;

[0052] The cooling liquid circulation supply device also includes a controller, which adjusts the flow rate provided to the pipeline according to the temperature detected by the temperature sensor, so that the temperature of the roller body 21 and the water-cooling shell 1 can be automatically controlled.

[0053] Taking the temperature control of the roller body 21 as an example, when the temperature sensor detecting the roller body 21 detects that the temperature is higher than the set value, the controller controls the cooling liquid circulation supply device to increase the flow rate input to the roller body 21 to improve the heat exchange effect and make the temperature of the roller body 21 lower than or equal to the set value, otherwise the flow rate input to the roller body 21 is reduced. The temperature control of the water-cooling shell 1 is consistent with the temperature control of the roller body 21, which will not be repeated here.

[0054] In one embodiment, the coolant circulation supply device also includes a valve for controlling the on / off of the liquid inlet pipe 12 and the water inlet pipe 232 in the rotary joint 23. Preferably, the two valves are arranged on two pipes connecting the liquid inlet pipe 12 and the water inlet pipe 232. The valves are electrically connected to the controller. The controller can adjust the flow rate of the coolant in real time by controlling the valve in combination with the flow detector, so that the coolant in the coolant flow channel 11 and the hollow cavity 211 maintains a suitable temperature.

[0055] The above is only an embodiment and does not limit the present invention in any way. Any person skilled in the art can make many possible changes, modifications or modifications to the present invention without departing from the scope of the present invention by using the above disclosed technical contents. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the present invention should fall within the scope of protection of the present invention.

Claims

1. An industrial kiln material cooling system, characterized in that: It comprises a water-cooling shell (1), a water-cooling transmission roller assembly (2) and a cooling liquid circulation supply device; A cooling liquid flow channel (11) is provided in the shell wall of the water-cooling shell (1), and a liquid inlet pipe (12) and a liquid outlet pipe (13) communicating with the cooling liquid flow channel (11) are provided at opposite ends of the water-cooling shell (1); The water-cooled transmission roller assembly (2) comprises a roller body (21), a rotation driving device (22) and a rotation joint (23); the roller body (21) has a hollow cavity (211) inside and one end of the hollow cavity (211) is provided with a liquid inlet and outlet (212); the roller body (21) is rotatably arranged in the water-cooled shell (1), and the two ends of the roller body (21) extend out of the two side walls of the water-cooled shell (1); the rotation driving device (22) is arranged outside one side wall of the water-cooled shell (1) and is used to drive the roller body (21) to rotate; the rotation joint (23) is arranged outside the other side wall of the water-cooled shell (1) and is rotationally connected to the liquid inlet and outlet (212); The cooling liquid circulation supply device is connected to the liquid inlet pipe (12), the liquid outlet pipe (13) and the rotary joint (23) via pipelines, so that the cooling liquid can be continuously circulated in the cooling liquid flow channel (11) and the hollow cavity (211).

2. The industrial furnace material cooling system according to claim 1, characterized in that: The water-cooling housing (1) comprises an inner water jacket plate (14) and an outer water jacket plate (15) of a rectangular structure, wherein the inner wall of the outer water jacket plate (15) and the outer wall of the inner water jacket plate (14) enclose the coolant flow channel (11), and the water-cooling housing (1) further comprises a flange plate (17) connecting the two ends of the inner water jacket plate (14) and the outer water jacket plate (15).

3. The industrial furnace material cooling system according to claim 2, characterized in that: The water-cooling housing (1) further comprises a plurality of guide plates (16) arranged in the coolant flow channel (11); the plurality of guide plates (16) enable the coolant flow channel (11) to be arranged in a serpentine shape.

4. The industrial furnace material cooling system according to claim 1, characterized in that: The roller body (21) is rotatably arranged on both side walls of the water-cooling shell (1) via bearings.

5. The industrial furnace material cooling system according to claim 1, characterized in that: The roller bodies (21) and the rotary joints (23) are arranged in a plurality of groups at intervals; The rotation driving device (22) drives a plurality of the roller bodies (21) to rotate synchronously.

6. The industrial furnace material cooling system according to claim 1, characterized in that: The roller body (21) is made of metal material.

7. The industrial furnace material cooling system according to claim 1, characterized in that: The rotary joint (23) comprises a joint body (231) and a water inlet pipe (232); the joint body (231) is provided with a stepped hole (2311) penetrating through both ends; One end of the water inlet pipe (232) is tightly matched with the small hole of the step hole (2311), and the other end passes through the large hole of the step hole (2311) and extends into the hollow cavity (211); The inner wall of the large hole of the step hole (2311) and the inner wall of the liquid inlet and outlet (212) are combined with the outer wall of the water inlet pipe (232) to form a water outlet channel (233); a liquid outlet (2312) is provided at the large hole of the step hole (2311), and the liquid outlet (2312) is connected to the water outlet channel (233).

8. The industrial furnace material cooling system according to any one of claims 1 to 7, characterized in that: The cooling liquid circulation supply device further comprises a temperature sensor for monitoring the temperature of the cooling liquid in the cooling liquid flow channel (11) and the hollow cavity (211); The pipeline of the cooling liquid circulation supply device connected to the water-cooling shell (1) and the pipeline connected to the roller body (21) are both provided with flow detectors; The cooling liquid circulation supply device further includes a controller, which adjusts the flow rate provided to the pipeline according to the temperature detected by the temperature sensor.

9. The industrial furnace material cooling system according to claim 8, characterized in that: The cooling liquid circulation supply device also includes a valve for controlling the on / off of the liquid inlet pipe (12) and the water inlet pipe (232) in the rotary joint (23), and the valve is electrically connected to the controller.

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