Cellar furnace cooling device

Abstract

The utility model belongs to the technical field of kiln furnace devices, and discloses a kiln furnace cooling device. The kiln furnace cooling device comprises a cooling cylinder body, a jacket cover plate, an air cooling element and a liquid cooling element. The jacket cover plate comprises a cover body and a groove body, the cover body covers the opening of the cooling cylinder body, and the groove body is buckled on the inner wall of the cover body. A jacket cavity is defined by the inner wall of the groove body and the inner wall of the cover body, a cooling cavity is defined by the inner wall of the cooling cylinder body, the outer wall of the groove body and the inner wall of the cover body, and materials to be cooled are located in the cooling cavity. The groove body is provided with a circulation hole, and the jacket cavity is communicated with the cooling cavity through the circulation hole. The air cooling element is at least partially located in the jacket cavity and comprises an air outlet and a suction opening, one of the air outlet and the suction opening is communicated with the jacket cavity, and the other one of the air outlet and the suction opening is communicated with the cooling cavity. The liquid cooling element is located in the jacket cavity and spaced from the air cooling element, and the circulation hole is close to the liquid cooling element. The kiln furnace cooling device is high in material cooling efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to pit furnace device technical field especially relates to a pit furnace cooling device. BACKGROUND

[0002] After material high-temperature sintering is completed in pit furnace, needs cooling and temperature reduction, usually, cooling mode is adopting normal temperature gas and normal temperature liquid heat exchange on material surface to reach the purpose of cooling, but, in prior art, in pit furnace cooling section rear portion, because material and furnace atmosphere temperature difference is small, radiation heat exchange efficiency is low, and furnace wind speed is slow, and convection heat exchange efficiency is also low.

[0003] Therefore, pit furnace cooling device is urgently needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a pit furnace cooling device, the cooling efficiency of pit furnace cooling device to material is high.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] Pit furnace cooling device, comprising:

[0007] Cooling cylinder body;

[0008] Jacket cover plate, the jacket cover plate includes cover body and recess body, the cover body is covered and arranged to the opening of the cooling cylinder body, the recess body is buckled in the inner wall of the cover body, the recess body inner wall and the cover body inner wall surround and form the jacket cavity, the cooling cylinder body inner wall, the recess body outer wall and the cover body inner wall surround and form the cooling cavity, and the material to be cooled is located in the cooling cavity, the recess body is provided with flow-through hole, and the jacket cavity is communicated with the cooling cavity through the flow-through hole;

[0009] Air cooling element, the air cooling element is located at least partially in the jacket cavity, and the air cooling element includes air outlet and air suction port, one of the air outlet and the air suction port is communicated with the jacket cavity, and the other is communicated with the cooling cavity;

[0010] Liquid cooling element, the liquid cooling element is located in the jacket cavity and is spaced apart from the air cooling element, and the flow-through hole is arranged close to the liquid cooling element.

[0011] As an optional technical scheme of pit furnace cooling device, the air cooling element includes axial flow fan, the axial flow fan is connected to the cover body, the main body of the axial flow fan is located in the jacket cavity, and the base of the axial flow fan is located on the outer wall of the cover body.

[0012] As an optional technical scheme of the kiln cooling device, the liquid cooling element comprises a heat exchange pipe, the cover body of the jacket cavity corresponding part is provided with an inlet and an outlet, and the inlet and the outlet are communicated with two ports of the heat exchange pipe respectively.

[0013] As an optional technical scheme of the kiln cooling device, the heat exchange pipe is arranged in the cooling cavity along the depth direction of the groove body.

[0014] As an optional technical scheme of the kiln cooling device, the jacket cover plate comprises a plurality of groove bodies, and the plurality of groove bodies are arranged at intervals along a first direction, the inner wall of each groove body and the inner wall of the cover body surround to form the jacket cavity, and the air cooling element and the liquid cooling element are arranged in each jacket cavity.

[0015] As an optional technical scheme of the kiln cooling device, the jacket cover plate comprises two groove bodies, and the two groove bodies are symmetrically arranged on both sides of the midpoint of the cover body along the first direction.

[0016] As an optional technical scheme of the kiln cooling device, the number of the air cooling element and the liquid cooling element is two, the two air cooling elements are symmetric about the midpoint of the cover body along the first direction, and the two liquid cooling elements are symmetric about the midpoint of the cover body along the first direction.

[0017] As an optional technical scheme of the kiln cooling device, the air outlet is communicated with the jacket cavity, and the air inlet is communicated with the cooling cavity.

[0018] As an optional technical scheme of the kiln cooling device, the air outlet is communicated with the cooling cavity, and the air inlet is communicated with the jacket cavity.

[0019] As an optional technical scheme of the kiln cooling device, the kiln cooling device further comprises a water cooling finned pipe, and the water cooling finned pipe is arranged in the cooling cavity and close to the groove body.

[0020] The beneficial effects of the utility model are as follows:

[0021] The cellar furnace cooling device provided by the utility model comprises a cooling cylinder body, a jacket cover plate, an air cooling element and a liquid cooling element. The jacket cover plate comprises a cover body and a groove body, the inner wall of the groove body and the inner wall of the cover body surround to form a jacket cavity, the inner wall of the cooling cylinder body, the outer wall of the groove body and the inner wall of the cover body surround to form a cooling cavity, the material to be cooled is located in the cooling cavity and can be cooled and cooled down in the cooling cavity. The groove body is provided with a flow hole, the jacket cavity and the cooling cavity are communicated through the flow hole, and the atmosphere is circulated and heat-exchanged between the jacket cavity and the cooling cavity. The air cooling element is at least partially located in the jacket cavity, the air cooling element comprises an air outlet and an air inlet, one of the air outlet and the air inlet is communicated with the jacket cavity, and the other is communicated with the cooling cavity, air blowing and air suction of the air cooling element are used to accelerate the circulation of the atmosphere between the jacket cavity and the cooling cavity, the convection heat exchange efficiency of the atmosphere in the cooling cylinder body is increased, and the cooling efficiency of the material is improved. The liquid cooling element is arranged in the jacket cavity and is spaced from the air cooling element, the atmosphere entering the jacket cavity is cooled and cooled down, the temperature difference between the atmosphere and the material is increased, and the cooling efficiency of the material is improved. The flow hole is arranged close to the liquid cooling element, the distance of the atmosphere passing through the liquid cooling element is increased, the cooling efficiency of the atmosphere is improved, and the cooling efficiency of the material is improved. The air cooling element and the liquid cooling element are simultaneously used to improve the cooling efficiency of the material, and the air cooling element and the liquid cooling element are arranged in the jacket cavity, heat exchange between the air cooling element and the liquid cooling element is carried out in the jacket cavity, the heat exchange efficiency is increased, and the cooling efficiency of the material is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the cellar furnace cooling device provided by the utility model embodiment one;

[0023] Figure 2 is a structural schematic view of the cellar furnace cooling device provided by the utility model embodiment two.

[0024] In the drawings:

[0025] 100, cooling cylinder body; 200, jacket cover plate; 210, cover body; 211, inlet; 212, outlet; 220, groove body; 221, flow hole; 300, air cooling element; 400, liquid cooling element; 500, water cooling finned tube. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for convenience of description, not all the structures.

[0027] In the description of the utility model, unless another definite provision and limitation, the term "link", "connection", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features is not direct contact but is through the contact between other features between them.And, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0029] In the description of the embodiment, the term "on", "under", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0030] Embodiment one

[0031] The pit furnace cooling device provided by the embodiment has high cooling efficiency for materials.

[0032] Specifically Figure 1As shown, the kiln cooling device includes a cooling cylinder 100, a jacket cover plate 200, an air-cooled element 300, and a liquid-cooled element 400. The jacket cover plate 200 includes a cover body 210 and a recessed body 220. The cover body 210 covers the opening of the cooling cylinder 100, and the recessed body 220 is fastened to the inner wall of the cover body 210. The inner wall of the recessed body 220 and the inner wall of the cover body 210 form a jacket cavity. The inner wall of the cooling cylinder 100, the outer wall of the recessed body 220, and the inner wall of the cover body 210 together form a cooling cavity, where the material to be cooled is located. The recessed body 220 has a flow hole 221, through which the jacket cavity and the cooling cavity communicate. The air-cooled element 300 is at least partially located within the jacket cavity. The air-cooled element 300 includes an air outlet and an air exhaust port, one of which communicates with the jacket cavity, and the other communicates with the cooling cavity. The liquid cooling element 400 is located in the jacket cavity and is spaced apart from the air cooling element 300, and the flow hole 221 is located close to the liquid cooling element 400.

[0033] Based on the above design, the inner wall of the groove 220 and the inner wall of the cover body 210 form a jacket cavity. The inner wall of the cooling cylinder 100, the outer wall of the groove 220, and the inner wall of the cover body 210 form a cooling cavity. The material to be cooled is located in the cooling cavity and can be cooled and reduced in temperature within the cooling cavity. The groove 220 has a flow hole 221, through which the jacket cavity and the cooling cavity are connected, allowing air to circulate and exchange heat between the jacket cavity and the cooling cavity. The air-cooling element 300 is at least partially located within the jacket cavity. The air-cooling element 300 includes an air outlet and an air exhaust port. One of the air outlet and the air exhaust port is connected to the jacket cavity, and the other is connected to the cooling cavity. Through the blowing and exhaust of the air-cooling element 300, the air circulation between the jacket cavity and the cooling cavity is accelerated, thereby increasing the convective heat transfer efficiency of the atmosphere within the cooling cylinder 100 and improving the cooling efficiency of the material. The liquid cooling element 400 is located within the jacket cavity and spaced apart from the air cooling element 300. It cools the atmosphere entering the jacket cavity, increasing the temperature difference between the atmosphere and the material, thereby improving the material's cooling efficiency. The flow hole 221 is positioned close to the liquid cooling element 400, increasing the path the atmosphere travels through the liquid cooling element 400 and improving the cooling efficiency of the atmosphere, thus improving the material's cooling efficiency. This kiln cooling device improves the material's cooling efficiency by simultaneously operating the air cooling element 300 and the liquid cooling element 400; furthermore, by placing the air cooling element 300 and the liquid cooling element 400 within the jacket cavity, heat exchange between the air cooling element 300 and the liquid cooling element 400 occurs within the jacket cavity, increasing heat exchange efficiency and thus improving the material's cooling efficiency.

[0034] In this embodiment, the cooling cylinder 100 is located at the rear of the kiln cooling section, and the material is cooled and de-temperatured inside the cooling cylinder 100.

[0035] The kiln cooling device further comprises a water-cooled finned tube 500, which is arranged in the cooling cavity and close to the groove body 220, and the atmosphere exchanged with the material first passes through the water-cooled fin for heat exchange and then flows through the jacket cavity for heat exchange.

[0036] Optionally, the air-cooled element 300 comprises an axial flow fan, which is arranged through the cover body 210, the main body of the axial flow fan is arranged in the jacket cavity, and the base of the axial flow fan is arranged on the outer wall of the cover body 210. The axial flow fan is simple to install, has large air volume, and is low in cost.

[0037] Optionally, the liquid-cooled element 400 comprises a heat exchange pipe, the cover body 210 of the corresponding part of the jacket cavity is provided with an inlet 211 and an outlet 212, and the inlet 211 and the outlet 212 are respectively communicated with two ports of the heat exchange pipe. The heat exchange pipe is filled with a heat exchange medium, and the atmosphere outside the heat exchange pipe is exchanged with the heat exchange pipe, so that the heat exchange effect is good. In the embodiment, the heat exchange pipe is filled with cooling water.

[0038] Further, the heat exchange pipe is arranged in the cooling cavity along the depth direction of the groove body 220, the length of the heat exchange pipe is increased, and then the contact area between the atmosphere and the heat exchange pipe is increased, and the heat exchange efficiency is improved.

[0039] Optionally, the jacket cover plate 200 comprises a plurality of groove bodies 220, the plurality of groove bodies 220 are arranged at intervals along a first direction (the A direction in the figure), the inner wall of each groove body 220 and the inner wall of the cover body 210 surround to form a jacket cavity, and the air-cooled element 300 and the liquid-cooled element 400 are arranged in each jacket cavity. The plurality of air-cooled elements 300 and the plurality of liquid-cooled elements 400 are arranged, and the heat exchange efficiency is improved.

[0040] It should be noted that, as shown by the wind direction arrow in the figure, Figure 1 each jacket cavity and the cooling cavity independently form a respective atmosphere circulation route.

[0041] From the comprehensive angle of cost and heat exchange efficiency, in the embodiment, the jacket cover plate 200 comprises two groove bodies 220; the two groove bodies 220 are symmetrically arranged on both sides of the midpoint of the cover body 210 along the first direction, and the heat exchange uniformity in the cooling cavity is improved.

[0042] Further, the number of the air-cooled element 300 and the liquid-cooled element 400 is two, the two air-cooled elements 300 are symmetric about the midpoint of the cover body 210 along the first direction, the two liquid-cooled elements 400 are symmetric about the midpoint of the cover body 210 along the first direction, the atmosphere flowing directions of the two groove bodies 220 close to the side are the same, and each jacket cavity and the cooling cavity independently form a respective atmosphere circulation route.

[0043] In the embodiment, the air outlet is communicated with the jacket cavity, and the air suction port is communicated with the cooling cavity. In the installation mode, the air cooling element 300 starts to suck air, and the hot air (high-temperature atmosphere) in the cooling cavity is sucked out through the air suction port and enters the air cooling element 300; the hot air in the air cooling element 300 is blown out from the air outlet of the air cooling element 300; then, the hot air out of the air cooling element 300 is cooled and reduced in temperature in the jacket cavity by the liquid cooling element 400 and becomes cold air (low-temperature atmosphere); the cold air enters the cooling cavity through the flow port, and the atmosphere with reduced temperature has a large temperature difference with the material to cool and reduce the temperature of the material.

[0044] Figure 1 The direction indicated by the arrow in the middle is the atmosphere flow direction in the embodiment.

[0045] Of course, the air cooling element 300 needs to be high-temperature resistant to avoid being damaged by high temperature.

[0046] It should be noted that the kiln cooling device in the utility model is not limited to cooling and reducing the temperature of the material, but can also heat and raise the temperature of the material. Whether the material is cooled and reduced in temperature or heated and raised in temperature, the heat exchange medium in the kiln cooling device is set according to actual needs, and the utility model does not make specific limitations on this.

[0047] Embodiment two

[0048] The same parts of the embodiment and embodiment one will not be described again, and only the different parts of the embodiment and embodiment one will be described below.

[0049] In the embodiment, the air outlet is communicated with the cooling cavity, and the air suction port is communicated with the jacket cavity. In the installation mode, the air cooling element 300 starts to suck air, and the hot air (high-temperature atmosphere) in the cooling cavity enters the jacket cavity through the flow port and is changed into cold air (low-temperature atmosphere) by heat exchange of the liquid cooling element 400; the cold air is sucked into the air cooling element 300 through the air suction port, and the cold air entering the air cooling element 300 returns to the cooling cavity through the air outlet, and the atmosphere with reduced temperature has a large temperature difference with the material to cool and reduce the temperature of the material. Since the atmosphere is reduced in temperature and then enters the air cooling element 300, the damage probability of the air cooling element 300 is reduced. In other words, a high-temperature resistant air cooling element 300 does not need to be selected, and the cost is reduced.

[0050] Figure 2 The direction indicated by the arrow in the middle is the atmosphere flow direction in the embodiment.

[0051] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A pit cooler, characterized in that The application relates to a cooling device, comprising: a cooling cylinder (100); a jacket cover plate (200), the jacket cover plate (200) comprising a cover body (210) and a groove body (220), the cover body (210) being covered on an opening of the cooling cylinder (100), the groove body (220) being buckled on an inner wall of the cover body (210), an inner wall of the groove body (220) and the inner wall of the cover body (210) surrounding to form a jacket cavity, an outer wall of the groove body (220), the inner wall of the cooling cylinder (100) and the inner wall of the cover body (210) surrounding to form a cooling cavity, material to be cooled being located in the cooling cavity, the groove body (220) being provided with a flow-through hole (221), the jacket cavity and the cooling cavity being communicated through the flow-through hole (221); an air cooling element (300), the air cooling element (300) being located at least partially in the jacket cavity, the air cooling element (300) comprising an air outlet and an air inlet, one of the air outlet and the air inlet being communicated with the jacket cavity, and the other being communicated with the cooling cavity; a liquid cooling element (400), the liquid cooling element (400) being located in the jacket cavity and being spaced from the air cooling element (300), the flow-through hole (221) being located close to the liquid cooling element (400).

2. The pit cooler of claim 1, wherein, The air cooling element (300) comprises an axial flow fan, the axial flow fan being connected to the cover body (210), a main body of the axial flow fan being located in the jacket cavity, and a base of the axial flow fan being located on an outer wall of the cover body (210).

3. The pit cooler of claim 1, wherein, The liquid cooling element (400) comprises a heat exchange pipe, the cover body (210) of a corresponding part of the jacket cavity being provided with an inlet (211) and an outlet (212), the inlet (211) and the outlet (212) being respectively communicated with two ports of the heat exchange pipe.

4. The pit cooler of claim 3, wherein, The heat exchange pipe is arranged in the cooling cavity along a depth direction of the groove body (220).

5. The pit cooler of claim 1, wherein, The jacket cover plate (200) comprises a plurality of groove bodies (220), the plurality of groove bodies (220) being spaced along a first direction, an inner wall of each groove body (220) and an inner wall of the cover body (210) surrounding to form the jacket cavity, and the jacket cavity being provided with the air cooling element (300) and the liquid cooling element (400).

6. The pit cooler of claim 5, wherein, The jacket cover plate (200) comprises two groove bodies (220), the two groove bodies (220) being symmetrically arranged on two sides of a midpoint of the cover body (210) along the first direction.

7. The pit cooler of claim 6, wherein, The air cooling element (300) and the liquid cooling element (400) are both two in number, the two air cooling elements (300) being symmetric about the midpoint of the cover body (210) along the first direction, and the two liquid cooling elements (400) being symmetric about the midpoint of the cover body (210) along the first direction.

8. The pit cooler of claim 1, wherein, The air outlet is communicated with the jacket cavity, and the air inlet is communicated with the cooling cavity.

9. The pit cooler of claim 1, wherein, The air outlet is communicated with the cooling cavity, and the air inlet is communicated with the jacket cavity.

10. The pit cooler of claim 1, wherein, The kiln cooling device further comprises a water-cooled finned tube (500) located in the cooling cavity and arranged close to the recess body (220).

Images