Forced cooling device for calcined gypsum powder

Abstract

A forced cooling device for calcined gypsum powder comprises a cooling box body, a cooling assembly and a blowing assembly. A feeding hole is formed in the top of the right side of the cooling box body; a discharging hole is formed in the bottom of the left side of the cooling box body; the cooling assembly comprises an air inlet, an external air pipe arranged outside the cooling box body, an internal air pipe arranged inside the cooling box body and an air outlet which are connected in sequence; the blowing assembly comprises a blowing pipe extending into the cooling box body from the outside of the cooling box body and a blowing head arranged at the tail end of the blowing pipe; the air inlet and the air blowing pipe are both connected with a high-pressure fan. The gypsum powder in the cooling box body is cooled through the cooling assembly, the gypsum powder in the cooling box body is conveyed through the material blowing assembly, meanwhile, the material blowing assembly also plays a role in cooling the gypsum powder, and the cooling effect is more remarkable.

Description

Technical Field

[0001] This utility model relates to the field of gypsum powder cooling technology, specifically to a forced cooling device for calcined gypsum powder. Background Technology

[0002] Calcined gypsum powder is the main raw material for producing gypsum board. It is primarily obtained by calcining raw gypsum powder. However, calcination results in calcined gypsum powder produced at high temperatures, leading to lower stability and workability. Cooling calcined gypsum powder not only enhances its stability but also improves its workability in subsequent processing, packaging, and use.

[0003] Existing calcined gypsum powder cooling devices generally employ water cooling or air cooling technologies. In water cooling technology, prolonged friction between the calcined gypsum powder and the cooling pipes can easily damage the pipes, leading to water contact with the calcined gypsum powder and affecting its quality. In contrast, most air cooling technologies can only cool the surface of the calcined gypsum powder pile first, without penetrating into the pile itself. This prevents sufficient contact between the calcined gypsum powder and the internal components, thus hindering the rapid removal of heat from the pile. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model provides a forced cooling device for calcined gypsum powder.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a forced cooling device for calcined gypsum powder, including a cooling box, a cooling component and a blowing component;

[0006] The cooling box has a feed inlet on the top right side and a discharge outlet on the bottom left side.

[0007] The cooling assembly includes an air inlet, an external air duct located outside the cooling box, an internal air duct located inside the cooling box, and an air outlet connected in sequence.

[0008] The blowing assembly includes a blowing pipe extending from the outside of the cooling box body into the cooling box body and a blowing head disposed at the end of the blowing pipe.

[0009] Both the air inlet and the blower are connected to a high-pressure blower.

[0010] Furthermore, a one-way air valve is provided at the end of the blower head, and the angle between the axial direction of the blower head and the axial direction of the blower pipe is 120°. The one-way air valve prevents plaster powder from entering the blower pipe, ensuring that the blower pipe remains unobstructed at all times.

[0011] Furthermore, a discharge slope is provided at the bottom of the cooling box, and an arc-shaped air guide wall is provided on the right side of the cooling box. The cold air blown out from the blower head can flow along the arc-shaped air guide wall, thereby agitating the calcined gypsum powder inside the cooling box, and finally being discharged from the outlet along the discharge slope.

[0012] Furthermore, the cooling box is equipped with a discharge diversion baffle, which is located directly below the feed inlet and above the blower head. The discharge diversion baffle effectively prevents the gypsum powder from impacting the blower head during its descent, and also reduces the amount of cold air discharged from the feed inlet.

[0013] Furthermore, both the external and internal air ducts are U-shaped. The external air duct has several evenly distributed first heat dissipation fins on its wall, and the internal air duct has several evenly distributed second heat dissipation fins on its wall. The first heat dissipation fins reduce the temperature of the air inside the duct, while the second heat dissipation fins increase the contact area with the calcined gypsum powder, quickly removing heat from the powder. The external and internal air ducts are staggered, allowing the external ducts to deliver cool air to the calcined gypsum powder inside the cooling chamber via the internal ducts, while the internal ducts carry the heat exchanged by the calcined gypsum powder to the next section of the external duct for further cooling. This avoids the problem of the calcined gypsum powder continuously heating the ductwork, thus improving cooling efficiency.

[0014] Furthermore, three evenly distributed third heat dissipation fins are provided on the wall of the air blower. These third heat dissipation fins, located between the air blower and the inner wall of the cooling box and perpendicular to the inner wall of the cooling box, are fixedly connected to the inner wall of the cooling box. Three third heat dissipation fins are provided, each with an included angle of 120°. This increases the contact area with the plaster powder and prevents the plaster powder from clogging between two third heat dissipation fins. This angle allows the plaster powder between the two third heat dissipation fins to slide off under the influence of cold air. The third heat dissipation fins, located between the air blower and the inner wall of the cooling box and perpendicular to the inner wall of the cooling box, not only increase the contact area with the plaster powder but also make the air blower more secure.

[0015] Furthermore, the first and third heat dissipation fins have rectangular cross-sections, while the second heat dissipation fin has a triangular cross-section. The triangular cross-section of the second heat dissipation fin prevents the plaster powder from being trapped between the two second heat dissipation fins and making it difficult for it to slip off.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a forced cooling device for calcined gypsum powder. A cooling component cools the calcined gypsum powder inside the cooling chamber, while a blowing component transports the powder within the chamber. Simultaneously, the blowing component also cools the calcined gypsum powder, resulting in a more significant cooling effect. This dual air cooling system achieves rapid cooling of the calcined gypsum powder, changing the traditional method of directly blowing air onto the gypsum powder pile for cooling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 for Figure 2 Cross-sectional view along the AA direction;

[0020] Figure 4 for Figure 2 Cross-sectional view along the middle BB direction;

[0021] Figure 5 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 6 for Figure 5 An enlarged schematic diagram of part A in the middle.

[0023] Among them, 1. Cooling box, 2. Cooling assembly, 3. Material blowing assembly;

[0024] 101. Feed inlet; 102. Discharge outlet; 103. Arc-shaped air guide wall; 104. Discharge slope; 105. Discharge diversion baffle.

[0025] 201. Air inlet; 202. Air outlet; 203. External air duct; 204. Internal air duct; 205. First heat dissipation fin; 206. Second heat dissipation fin.

[0026] 301. Air duct; 302. Air blower head; 303. Third heat dissipation fin. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] like Figure 1 The forced cooling device for calcined gypsum powder shown in Figure 6 includes a cooling box 1, a cooling assembly 2, and a blowing assembly 3;

[0031] The cooling box 1 has a feed inlet 101 on the top right side and a discharge outlet 102 on the bottom left side.

[0032] The cooling assembly 2 includes an air inlet 201, an external air duct 203 located outside the cooling box 1, an internal air duct 204 located inside the cooling box 1, and an air outlet 202 connected in sequence.

[0033] The blowing assembly 3 includes a blowing pipe 301 extending from the outside of the cooling box 1 into the cooling box 1 and a blowing head 302 disposed at the end of the blowing pipe 301;

[0034] Both the air inlet 201 and the air blowing pipe 301 are connected to a high-pressure blower (using existing technology).

[0035] In this embodiment, a one-way air valve is provided at the end of the blower head 302, and the angle between the axial direction of the blower head 302 and the axial direction of the blower pipe 301 is 120°. The one-way air valve can prevent plaster powder from entering the blower pipe 301, keeping the blower pipe 301 unobstructed at all times.

[0036] In this embodiment, a discharge slope 104 is provided at the bottom of the cooling box 1, and an arc-shaped air guide wall 103 is provided on the right side of the cooling box 1. The cold air blown out from the blower head 302 can flow along the arc-shaped air guide wall 103, thereby agitating the calcined gypsum powder inside the cooling box 1, and finally being discharged from the discharge port 102 along the discharge slope 104.

[0037] In this embodiment, a discharge diversion baffle 105 is provided inside the cooling box 1. The discharge diversion baffle 105 is located directly below the feed inlet 101 and above the blower head 302. The discharge diversion baffle 105 effectively prevents the gypsum powder from impacting the blower head 302 during its descent, and also reduces the amount of cold air discharged from the feed inlet 101 to a certain extent.

[0038] In this embodiment, both the external duct 203 and the internal duct 204 are U-shaped pipes. The external duct 203 has several evenly distributed first heat dissipation fins 205 on its wall, and the internal duct 204 has several evenly distributed second heat dissipation fins 206 on its wall. The first heat dissipation fins 205 reduce the temperature of the air inside the duct, while the second heat dissipation fins 206 increase the contact area with the calcined gypsum powder, quickly removing heat from the powder. The external duct 203 and the internal duct 204 are staggered. On one hand, the external duct 203 delivers cool air to the calcined gypsum powder inside the cooling box 1 through the internal duct 204; on the other hand, the internal duct 204 carries the heat exchanged by the calcined gypsum powder to the next section of the external duct 203 for cooling, avoiding the problem of continuous heating of the duct by the calcined gypsum powder and improving cooling efficiency.

[0039] In this embodiment, three evenly distributed third heat dissipation fins 303 are provided on the wall of the air blowing pipe 301. These third heat dissipation fins 303, located between the air blowing pipe 301 and the inner wall of the cooling box 1 and perpendicular to the inner wall of the cooling box 1, are fixedly connected to the inner wall of the cooling box 1. Three third heat dissipation fins 303 are provided, each with an included angle of 120°. This angle increases the contact area with the plaster powder and prevents the plaster powder from clogging between two third heat dissipation fins 303. This angle allows the plaster powder between the two third heat dissipation fins 303 to slide off under the influence of cold air. The third heat dissipation fins 303, located between the air blowing pipe 301 and the inner wall of the cooling box 1 and perpendicular to the inner wall of the cooling box 1, not only increase the contact area with the plaster powder but also make the air blowing pipe 301 more secure.

[0040] In this embodiment, the cross-sections of the first heat dissipation fin 205 and the third heat dissipation fin 303 are both rectangular, while the cross-section of the second heat dissipation fin 206 is triangular. The triangular cross-section of the second heat dissipation fin 206 prevents the plaster powder from slipping out when trapped between the two second heat dissipation fins 206.

[0041] Working principle: The present invention provides a forced cooling device for calcined gypsum powder. A crane is used to place a ton bag containing calcined gypsum powder to be cooled in the inlet 101. The ton bag is opened so that the calcined gypsum powder can enter the cooling box 1 from the inlet 101 under the action of gravity. The high-pressure blowers connected to the air inlet 201 and the air blowing pipe 301 are started respectively. The cold air generated by the high-pressure blower connected to the air inlet 201 passes through the external air pipe 203 and the internal air pipe 204 in sequence, and is finally discharged from the air outlet 202 connected to the external air pipe 203, and finally discharged outside the workshop. The cold air generated by the high-pressure blower connected to the air blowing pipe 301 circulates in the cooling box 1 under the action of the arc-shaped air guide wall 103, and finally causes the calcined gypsum powder to be discharged from the outlet 102 along the discharge slope 104.

[0042] It should be noted that the discharge port 102 is connected to a ton bag for holding the cooled gypsum powder, and the ton bags at both the inlet 101 and the discharge port 102 are tightly connected during the operation of the high-pressure blower. Because the ton bags are made of breathable material, the gypsum powder inside the cooling chamber 1 is prevented from being blown out by the device, thus eliminating the need for additional dust removal equipment.

[0043] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A forced cooling device for calcined gypsum powder, characterized in that: Includes cooling housing, cooling components, and blowing components; The cooling box has a feed inlet on the top right side and a discharge outlet on the bottom left side. The cooling assembly includes an air inlet, an external air duct located outside the cooling box, an internal air duct located inside the cooling box, and an air outlet connected in sequence. The blowing assembly includes a blowing pipe extending from the outside of the cooling box body into the cooling box body and a blowing head disposed at the end of the blowing pipe. Both the air inlet and the blower are connected to a high-pressure blower.

2. The forced cooling device for calcined gypsum powder according to claim 1, characterized in that: The blower head is equipped with a one-way air valve at its end, and the angle between the axial direction of the blower head and the axial direction of the blower pipe is 120°.

3. The forced cooling device for calcined gypsum powder according to claim 2, characterized in that: The bottom of the cooling box is provided with a material discharge slope, and the right side of the cooling box is provided with an arc-shaped air guide wall.

4. The forced cooling device for calcined gypsum powder according to claim 3, characterized in that: The cooling box is equipped with a discharge diversion baffle, which is located directly below the feed inlet and above the blower head.

5. The forced cooling device for calcined gypsum powder according to claim 4, characterized in that: Both the external and internal air ducts are U-shaped. The external air duct has several evenly distributed first heat dissipation fins on its wall, and the internal air duct has several evenly distributed second heat dissipation fins on its wall.

6. The forced cooling device for calcined gypsum powder according to claim 5, characterized in that: The blower pipe has three evenly distributed third heat dissipation fins on its wall. The third heat dissipation fins, which are located between the blower pipe and the inner wall of the cooling box and are perpendicular to the inner wall of the cooling box, are fixedly connected to the inner wall of the cooling box.

7. The forced cooling device for calcined gypsum powder according to claim 6, characterized in that: The first and third heat dissipation fins have rectangular cross-sections, while the second heat dissipation fin has a triangular cross-section.

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