A cooler

Abstract

The utility model relates to high temperature powdery material cooling equipment especially relates to a cooler. Including air tank, the upside of air tank is connected with feed pipe and discharge pipe, the downside is connected with air inlet tank, is equipped with the air inlet on air inlet tank, the upper end of air tank is fixed with the connecting plate, the lower end of air tank is fixed with air distribution board, the upper end of air inlet tank is connected with air distribution board fixedly, a plurality of air inlets are opened on air distribution board, the inboard wall of air tank is fixed with first concrete layer, the inboard of first concrete layer is fixed with the fender, the air inlet position on air distribution board all is fixed with the air pipe, the upper end of air pipe stretches into air tank, the outboard of air pipe is fixed with second concrete layer, the pouring hole is opened on the connecting plate. Through increasing first concrete layer and fender inboard of air tank to protect air tank, avoid the direct contact of calcining material with the side wall of air tank in the heat exchange process, increase the service life of air tank.

Description

Technical Field

[0001] This utility model relates to a cooling device for high-temperature powdery materials, and more particularly to a cooler. Background Technology

[0002] Coolers are widely used in chemical, metallurgical and other fields, and are a type of equipment for efficient heat exchange of materials. For example, after materials are roasted in a roasting kiln, they need to be cooled before being transported to a metallurgical furnace for smelting.

[0003] Most coolers use air cooling and water cooling to exchange heat with the calcined material, thereby reducing the material temperature. In existing systems, the calcined material enters the air-cooled zone of the cooler's air chamber for heat exchange. Due to the high temperature of the calcined material, the air chamber will be damaged by alternating hot and cold temperatures after prolonged use, resulting in a short service life. Summary of the Invention

[0004] To address the problem that air boxes in existing coolers are prone to damage after prolonged use, this invention proposes a cooler that protects the air box by adding a first concrete layer and a protective plate to the inside of the air box, preventing the calcined material from directly contacting the side wall of the air box during heat exchange, thereby increasing the service life of the air box.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A cooler includes an air chamber with an inlet pipe and an outlet pipe connected to its upper side, and an air inlet box connected to its lower side. The air inlet box has an air inlet. A connecting plate is fixed to the upper end of the air chamber, and an air distribution plate is fixed to its lower end. The upper end of the air inlet box is connected and fixed to the air distribution plate. Multiple air inlet holes are formed on the air distribution plate. A first concrete layer is fixed to the inner wall of the air chamber, and a protective plate is fixed to the inner side of the first concrete layer. Air inlet pipes are fixed at the air inlet positions on the air distribution plate, with their upper ends extending into the air chamber. A second concrete layer is fixed to the outer side of the air inlet pipes. A pouring hole is formed on the connecting plate, located between the inner wall of the air chamber and the outer wall of the protective plate. The second concrete layer and the air inlet pipes are at the same height within the air chamber, and the second concrete layer is located inside the protective plate. After the first concrete layer is poured, the pouring hole needs to be welded shut.

[0007] Preferably, anchors are provided within the first concrete layer, and the anchors are fixedly connected to the inner side of the air chamber. The anchors are welded and fixed to the inner wall of the air chamber. This further improves the structural strength of the first concrete layer, thereby extending the service life of the air chamber.

[0008] Preferably, the anchor is V-shaped.

[0009] Preferably, the cross-section of the air-cooled zone inside the air box is elliptical.

[0010] Preferably, an observation port is provided on the side wall of the air chamber, penetrating the first concrete layer and the protective plate. This allows for direct inspection of whether the air inlet pipe is blocked by material.

[0011] Preferably, the lower end of the air inlet box is provided with a slag discharge port. The slag discharge port is closed during the use of the cooler, and the staff periodically cleans the material in the air inlet box through the slag discharge port.

[0012] Preferably, a water-cooled box is fixed to the upper end of the air box. The water-cooled box has an inlet and an outlet. The feed pipe and the discharge pipe pass through the water-cooled box and are connected to the air box. The water in the water-cooled box exchanges heat with the feed pipe and the discharge pipe, thereby improving the cooling effect of the cooler.

[0013] The beneficial effects of this utility model through the above technical solution are as follows: This utility model adds a first concrete layer and a protective plate inside the air box to avoid direct contact between the calcined material and the side wall of the air box. A second concrete layer is also poured around the air inlet pipe to protect the air inlet pipe, thereby improving the service life of the air box. At the same time, a pouring hole is opened on the connecting plate, which is directly connected to the gap between the air box and the protective plate to facilitate the subsequent pouring of the first concrete layer, thus improving efficiency. Attached Figure Description

[0014] Figure 1 This is a front view of a cooler according to the present invention;

[0015] Figure 2 This is a front view of the air chamber of a cooler according to the present invention;

[0016] Figure 3 This is a cross-sectional view of the structure at point AA of a cooler according to this utility model;

[0017] Figure 4 This is a top view of a cooler according to the present invention;

[0018] Figure 5 This is a top view of the air distribution plate of a cooler according to the present invention;

[0019] Figure 6 This is a cross-sectional view of the air distribution plate of a cooler according to the present invention.

[0020] In the attached diagram, the following numbers are used: 1 is the air box, 2 is the feed pipe, 3 is the discharge pipe, 4 is the air inlet box, 5 is the air inlet, 6 is the connecting plate, 7 is the air distribution plate, 8 is the first concrete layer, 9 is the protective plate, 10 is the air inlet pipe, 11 is the second concrete layer, 12 is the pouring hole, 13 is the anchor, 14 is the observation port, 15 is the slag discharge port, 16 is the water cooling box, 17 is the water inlet, 18 is the water outlet, 19 is the reinforcing rib plate, 20 is the cover plate, 21 is the first bolt hole, 22 is the second bolt hole, and 23 is the third bolt hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1-6 As shown, this embodiment provides a cooler, including an air box 1. The upper side of the air box 1 is connected to an inlet pipe 2 and an outlet pipe 3. The inlet pipe 2 is used to add the calcined material to be cooled, such as zinc calcined sand, into the air box 1, and the outlet pipe 3 is used to discharge the cooled calcined material.

[0023] The lower side of the air box 1 is connected to an air inlet box 4, which has an air inlet 5. The air inlet 4 is connected to an external air supply device through the air inlet 5 to deliver air into the cooling area within the air box 1. The cross-section of the air-cooled area within the air box 1 is elliptical. Specifically, a connecting plate 6 is welded and fixed to the upper end of the air box 1. The connecting plate 6 at the upper end of the air box 1 has multiple first bolt holes 21. An air distribution plate 7 is bolted to the lower end of the air box 1. The upper end of the air inlet box 4 is connected and fixed to the air distribution plate 7, which has multiple air inlet holes.

[0024] refer to Figure 3 and Figure 5 A cover plate 20 is welded and fixed to the outer side of the lower end of the air box 1. Multiple second bolt holes 22 are provided on the cover plate 20, and multiple third bolt holes 23 are provided on the air distribution plate 7. The air box 1 and the air distribution plate 7 are bolted together through the second bolt holes 22 and the third bolt holes 23. Multiple reinforcing ribs 19 are welded between the cover plate 20 and the connecting plate 6.

[0025] refer to Figure 6 An air inlet pipe 10 is fixed at each air inlet hole of the air distribution plate 7. The upper end of the air inlet pipe 10 extends into the air box 1 to enhance the air pressure entering the air box 1 from the air inlet box 4 and improve the heat exchange and cooling effect of the calcined material.

[0026] refer to Figure 3After prolonged use, the air chamber 1 will be damaged due to the continuous influence of the calcining material and air pressure. Therefore, a first concrete layer 8 is fixed to the inner wall of the air chamber 1. A protective plate 9 is fixed to the inner side of the first concrete layer 8. The height of the protective plate 9 is consistent with the internal height of the air chamber 1. It can be a whole elliptical steel plate, or it can be made by splicing two semi-circular plates and two rectangular plates and then welding them together. The upper end of the protective plate 9 is welded and fixed to the connecting plate 6 at the upper end of the air chamber 1, and the lower end is welded and fixed to the cover plate 20 at the lower end of the air chamber 1. After the protective plate 9 is welded and fixed, the first concrete layer 8 is poured. The protective plate 9 can be made of steel plate or stainless steel plate, etc., with a thickness between 2-8mm.

[0027] To improve the pouring efficiency and post-pouring strength of the first concrete layer 8, anchors 13 are installed within the first concrete layer 8. The anchors 13 are V-shaped and fixedly connected to the inner side of the air chamber 1. Multiple pouring holes 12 are provided on the connecting plate 6, located between the inner wall of the air chamber 1 and the outer wall of the protective plate 9. The anchors 13 are made of φ6 steel bars and are welded to the inner wall of the air chamber 1 before the protective plate 9 is fixed. The first concrete layer 8 is then poured through the pouring holes 12 on the connecting plate 6. The shape and size of the pouring holes 12 can be changed according to actual needs. After the first concrete layer 8 is poured, the pouring holes 12 need to be spot-welded closed.

[0028] refer to Figure 5 A second concrete layer 11 is fixed to the outer side of each of the multiple air inlet pipes 10. The second concrete layer 11 is entirely located inside the protective plate 9 and can contact the inner wall of the protective plate 9, preventing the calcined material from falling into the gap between the two during the cooling process, which would make subsequent cleaning difficult. The extension height of the air inlet pipes 10 and the second concrete layer 11 in the air box 1 can be kept consistent, providing better protection for the air inlet pipes 10.

[0029] Furthermore, an observation port 14 is provided on the side wall of the air chamber 1, penetrating the first concrete layer 8 and the protective plate 9. After penetrating the first concrete layer 8 and the protective plate 9, the observation port 14 allows direct observation of the cooling area inside the air chamber 1, and allows observation of whether the air inlet pipe 10 is blocked, affecting the heat exchange and cooling effect of the calcined material. The observation port 14 is sealed with a flange during the use of the cooler.

[0030] refer to Figure 1The lower end of the air inlet box 4 is provided with a slag discharge port 15. The slag discharge port 15 is closed during the operation of the cooler, and personnel periodically clean the material in the air inlet box through the slag discharge port. A water-cooled box 16 is fixed to the upper end of the air box 1. The water-cooled box 16 is provided with a water inlet 17 and a water outlet 18. The feed pipe 2 and the discharge pipe 3 pass through the water-cooled box 16 and communicate with the air box 1. The connecting plate 6 at the upper end of the air box 1 is bolted to the water-cooled box 16 through the first bolt hole 21. The water-cooled box 16 is internally enclosed, and circulation with an external water source is achieved through the water inlet 17 and the water outlet 18. An exhaust pipe (not shown in the figure) can also be installed on the water-cooled box 16 to discharge water vapor from the water-cooled box 16.

[0031] When this device is in use, the calcined material to be cooled is added into the air box 1 through the feed pipe 2. When the calcined material enters the cooling area in the air box 1, compressed air is sent into the air box 4 through the air inlet 5. The compressed air enters the cooling area through the air inlet hole on the air distribution plate 7 and is pressurized through the air inlet pipe 10 to exchange heat with the calcined material. After a period of time, the calcined material is cooled and discharged through the discharge pipe 3.

[0032] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A cooler comprising an air tank (1), an inlet pipe (2) and an outlet pipe (3) being communicated with the upper side of the air tank (1), an air inlet tank (4) being communicated with the lower side of the air tank (1), an air inlet (5) being arranged on the air inlet tank (4), characterized in that, A connecting plate (6) is fixed to the upper end of the air box (1), and an air distribution plate (7) is fixed to the lower end of the air box (1). The upper end of the air inlet box (4) is connected and fixed to the air distribution plate (7). Multiple air inlet holes are provided on the air distribution plate (7). The inner wall of the air box (1) is fixed with a first concrete layer (8), and the inner side of the first concrete layer (8) is fixed with a protective plate (9). An air inlet pipe (10) is fixed at the air inlet of the air distribution plate (7). The upper end of the air inlet pipe (10) extends into the air box (1). A second concrete layer (11) is fixed on the outer side of the air inlet pipe (10). A casting hole (12) is opened on the connecting plate (6). The casting hole (12) is located between the inner wall of the air box (1) and the outer wall of the protective plate (9).

2. A cooler as claimed in claim 1, wherein An anchor (13) is provided in the first concrete layer (8), and the anchor (13) is fixedly connected to the inner side of the air box (1).

3. A cooler as claimed in claim 2, wherein The anchor (13) is V-shaped.

4. The cooler of claim 1, wherein, The cross-section of the air-cooled zone inside the air box (1) is elliptical.

5. The cooler of claim 1, wherein, An observation port (14) is provided on the side wall of the air box (1), and the observation port (14) penetrates the first concrete layer (8) and the protective plate (9).

6. The cooler of claim 1, wherein, The lower end of the air inlet box (4) is provided with a slag discharge port (15).

7. The cooler of claim 1, wherein, The upper end of the air box (1) is fixed with a water cooling box (16), and the water cooling box (16) is provided with a water inlet (17) and a water outlet (18). The feed pipe (2) and the discharge pipe (3) pass through the water cooling box (16) and are connected to the air box (1).

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