Cooling equipment for gypsum powder

Abstract

The invention relates to the technical field of cooling structures, and discloses gypsum powder cooling equipment which comprises a barrel, a feeding device and a cooling device, and the feeding device and the cooling device are arranged in the barrel; a cooling liquid annular channel is arranged in the cylinder body, the feeding device comprises a cover body, a driving motor and a material pushing shaft, an output through hole is formed in the cover body, a connecting through hole is formed in the material pushing shaft, and the output end of the driving motor penetrates through the output through hole to be connected with the connecting through hole; the cooling device comprises a material passing ring body and a stirring shaft, a material pushing space is formed between the upper portion of the material passing ring body and the barrel, and a cooling space is formed between the lower portion of the material passing ring body and the barrel. According to the gypsum powder pre-cooling device, the feeding device is matched with the material passing annular body, gypsum powder is uniformly poured into the barrel body, and the gypsum powder is pre-cooled through cooling gas in the ventilation cavity after being introduced into the material passing annular body; gypsum powder is stirred through the stirring shaft, caking caused by accumulation in the heat dissipation process is prevented, and meanwhile the heat dissipation effect is improved through cooperation with the cooling liquid annular channel.

Description

Technical Field

[0001] The invention relates to the technical field of cooling structures, and in particular to a cooling device for gypsum powder. Background Art

[0002] Gypsum powder is widely used in construction, medicine, industry and other fields, especially in the construction industry. As an important building material, it is used very frequently. During the production process, gypsum needs to be calcined at high temperature and converted into hemihydrate gypsum or anhydrous gypsum. Then, it needs to be cooled to reduce its temperature for subsequent storage and transportation. The quality of the cooling process directly affects the performance and application effect of gypsum powder. Therefore, it is particularly important to study efficient cooling technology.

[0003] In the actual production process, the cooling of gypsum powder often faces two main problems:

[0004] Uneven cooling: During the cooling process of gypsum powder, the heat conduction and convection between particles are uneven, resulting in temperature differences in different parts. This uneven cooling will cause inconsistent crystal structure of gypsum powder in local areas, thus affecting its physical and chemical properties, which may lead to subsequent processing difficulties and unstable product quality.

[0005] Cooling too fast: Although rapid cooling can improve production efficiency, if the cooling speed is too fast, it may cause stress inside the gypsum powder, forming cracks or other defects. This not only affects the strength and durability of the gypsum powder, but may also cause breakage and performance degradation during subsequent use.

[0006] Therefore, achieving uniform cooling and reasonably controlling the cooling rate have become important directions for improving the quality of gypsum powder. Summary of the invention

[0007] The present invention aims at solving the shortcomings in the prior art and provides a cooling device for gypsum powder.

[0008] In order to solve the above technical problems, the present invention is solved by the following technical solutions.

[0009] A cooling device for gypsum powder comprises a cylinder, a feeding device and a cooling device, wherein the feeding device and the cooling device are arranged in the cylinder;

[0010] A cooling liquid annular channel is provided in the cylinder, the upper end of the cooling liquid annular channel is connected to a liquid inlet, and the lower end of the cooling liquid annular channel is connected to a liquid outlet;

[0011] The feeding device includes a cover body, a driving motor and a pushing shaft. The cover body is arranged above the cylinder body. The cover body is provided with an output through hole. The pushing shaft is provided with a connecting through hole. The output end of the driving motor passes through the output through hole and is connected with the connecting through hole to drive the pushing shaft to rotate in the cylinder body.

[0012] The cooling device includes a material passing ring body and a stirring shaft. The material passing ring body is arranged below the pushing shaft. A pushing space is formed between the upper part of the material passing ring body and the cylinder body, and a cooling space is formed between the lower part of the material passing ring body and the cylinder body. The material passing ring body is provided with a plurality of material passing holes arranged circumferentially, and the material passing ring body is provided with a ventilation cavity. One side of the ventilation cavity is provided with an air inlet hole, and the other side is provided with an air outlet hole. A stirring through hole is provided at the center of the material passing ring body, and a rotating shaft is provided at the upper end of the stirring shaft. The rotating shaft passes through the stirring through hole and is connected with the connecting through hole, so that the pushing shaft drives the stirring shaft to rotate.

[0013] Preferably, a feed port is provided on one side of the cylinder body, and the feed port is connected to the pushing space for transporting gypsum powder into the pushing space.

[0014] Preferably, an air inlet is provided on one side of the cylinder, the position of which corresponds to the air inlet hole, for cooling gas to enter the ventilation cavity, and an air outlet is provided on the other side of the cylinder, the position of which corresponds to the air outlet hole, for cooling gas to flow out of the ventilation cavity.

[0015] Preferably, the stirring shaft is provided with a plurality of groups of stirring blades.

[0016] Preferably, a discharging cylinder is provided below the cylinder body, and a closing plate is provided between the discharging cylinder and the cylinder body, and the closing plate is opened or closed to cooperate with the discharging work of the gypsum powder.

[0017] Preferably, inserts are provided on both sides below the cylinder.

[0018] Preferably, a plug hole is provided on the closing plate, a latch is provided in the plug hole, one side of the closing plate is fixed in the discharge barrel through a rotating shaft, and the other side of the closing plate is fixed in the insert piece through the latch.

[0019] Preferably, a movably connected discharge door is also provided on the discharge barrel.

[0020] Preferably, the push shaft is in a truncated cone shape, with arc-shaped blades connected on both sides.

[0021] The present invention has significant technical effects due to the adoption of the above technical scheme: the present invention pours the gypsum powder evenly into the cylinder through the cooperation of the feeding device and the material passing annular body, and before the main cooling work, the gypsum powder is pre-cooled by the cooling gas in the ventilation cavity of the material passing annular body; the gypsum powder is stirred by the stirring shaft to prevent agglomeration caused by accumulation during the heat dissipation process, thereby preventing uneven heat dissipation, and at the same time cooperates with the cooling liquid annular channel to improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a cooling device for gypsum powder of the present invention;

[0023] Figure 2It is a schematic diagram of the connection structure between a cover body and a driving motor in a cooling device for gypsum powder of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection structure between a push shaft and a stirring shaft in a cooling device for gypsum powder of the present invention;

[0025] Figure 4 It is a structural schematic diagram of a material passing ring body in a cooling device for gypsum powder of the present invention;

[0026] Figure 5 It is a schematic diagram of the internal structure of a material passing ring body in a cooling device for gypsum powder of the present invention;

[0027] Figure 6 The present invention is a schematic structural diagram of a closed plate in a cooling device for gypsum powder.

[0028] In the figure: 1-cylinder body, 11-cooling liquid annular channel, 12-liquid inlet, 13-liquid outlet, 21-cover body, 22-driving motor, 23-pushing shaft, 231-arc blades, 24-output through hole, 25-connecting through hole, 31-feeding ring body, 32-stirring shaft, 321-rotating shaft, 322-stirring blade, 33-feeding hole, 34-ventilation cavity, 35-inlet hole, 36-outlet hole, 37-feeding port, 38-stirring through hole, 4-pushing space, 5-cooling space, 6-discharging barrel, 61-discharging door, 7-closing plate, 71-latch pin, 72-insertion piece, 73-insertion hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] like Figures 1 to 6 As shown, it shows a cooling device for gypsum powder provided in an embodiment of the present application, comprising a cylinder 1, a feeding device and a cooling device, wherein the feeding device and the cooling device are arranged in the cylinder 1;

[0031] A cooling liquid annular channel 11 is provided in the cylinder 1, and the upper end of the cooling liquid annular channel 11 is connected to a liquid inlet 12, and the lower end of the cooling liquid annular channel 11 is connected to a liquid outlet 13; the cooling liquid annular channel 11 is arranged in the interlayer of the cylinder 1, and the purpose is to reduce the temperature in the cylinder, especially the gypsum powder in the cooling space 5, the cooling liquid flows in from the upper liquid inlet 12 and flows in from the other side liquid outlet 13, so as to achieve the effect of heat dissipation in the cylinder 1.

[0032] The feeding device includes a cover body 21, a driving motor 22 and a pushing shaft 23. The cover body 21 is arranged above the cylinder body 1. The cover body 21 is provided with an output through hole 24. The pushing shaft 23 is provided with a connecting through hole 25. The output end of the driving motor 22 passes through the output through hole 24 and is connected with the connecting through hole 25 to drive the pushing shaft 23 to rotate in the cylinder body 1. In this embodiment, the driving motor 22 drives the pushing shaft 23 to rotate, and the pushing shaft 23 pushes the gypsum powder after feeding, thereby reducing the agglomeration of the gypsum powder, thereby improving.

[0033] The cooling device includes a material passing ring 31 and a stirring shaft 32. The material passing ring 31 is arranged below the pushing shaft 23. A pushing space 4 is formed between the upper part of the material passing ring 31 and the cylinder 1, and a cooling space 5 is formed between the lower part of the material passing ring 31 and the cylinder 1. A plurality of material passing holes 33 arranged circumferentially are provided on the material passing ring 31. A ventilation cavity 34 is provided inside the material passing ring 31. An air inlet 35 is provided on one side of the ventilation cavity 34, and an air outlet 36 is provided on the other side. A stirring through hole 38 is provided at the center of the material passing ring 31. A rotating shaft 321 is provided at the upper end of the stirring shaft 32. The rotating shaft 321 passes through the stirring through hole 38 and is connected with the connecting through hole 25, so that the pushing shaft 23 drives the stirring shaft 32 to rotate. In this embodiment, the gypsum powder is pushed into the pushing hole in the pushing space 4 by the pushing shaft 23. During this process, the ventilation cavity 34 in the feeding ring body 31 continuously cools the feeding ring body 31 through cooling gas. At the same time, the surface of the feeding ring body 31 contacts the gypsum powder to cool the gypsum powder and dissipate part of the heat. The gypsum powder is pushed into the feeding hole 33 of the feeding ring body 31 by the pushing shaft 23, and then enters the cooling space 5. In the cooling space 5, the gypsum powder is continuously stirred by the stirring shaft 32 to prevent coagulation and uneven heat dissipation during the heat dissipation process. At the same time, the cooling liquid annular channel 11 in the cylinder 1 is used to cool the cylinder 1, thereby achieving a heat dissipation effect.

[0034] A feed port 37 is provided on one side of the cylinder 1, and the feed port 37 is connected to the pushing space 4, for transporting gypsum powder into the pushing space 4. In this embodiment, the gypsum powder enters the pushing space 4 through the feed port 37, and can be transported by an existing transport mechanism, such as a conveyor belt.

[0035] In this embodiment, the push shaft 23 is truncated cone-shaped, and arc-shaped blades 231 are connected on both sides. The truncated cone-shaped setting can make the push shaft 23 push the gypsum powder in the push space 4 during the rotation process, thereby reducing the accumulation of gypsum powder.

[0036] An air inlet 351 is provided on one side of the cylinder 1, and the position of the air inlet 351 corresponds to the air inlet hole 35, and is used for cooling gas to enter the ventilation cavity 34. An air outlet 361 is provided on the other side of the cylinder 1, and the position of the air outlet 361 corresponds to the air outlet hole 36, and is used for cooling gas to flow out of the ventilation cavity 34. In this embodiment, the cooling gas is nitrogen, which has the advantages of being non-toxic and dry, and is suitable for cooling gypsum powder materials.

[0037] A plurality of stirring blades 322 are provided on the stirring shaft 32 for stirring gypsum powder at different heights respectively, and have a good stirring effect.

[0038] A discharge barrel 6 is provided below the barrel 1, and a closing plate 7 is provided between the discharge barrel 6 and the barrel 1. The closing plate 7 is opened or closed to cooperate with the discharge of the gypsum powder. When the heat dissipation work is completed and the discharge is completed, the closing plate 7 is opened, and the gypsum powder enters the barrel. When feeding, the closing plate 7 is closed to form a closed space between the barrel 1 and the closing plate 7, and then the feeding and heat dissipation operations are carried out.

[0039] The closing plate 7 is provided with a plug hole 73, a latch 71 is provided in the plug hole 73, and inserts 72 are provided on both sides of the lower side of the cylinder 1. One side of the closing plate 7 is fixed in the discharge cylinder 6 through a rotating shaft, and the other side of the closing plate 7 is fixed in the inserts 72 through the latch 71. In this embodiment, the user completes the sealing operation of the closing plate 7 by pulling the latch 71, which is simple to operate and low in cost. The discharge cylinder 6 is also provided with a movably connected discharge door 61. It is convenient to take out the gypsum powder later, and the whole process is simple and fast.

[0040] When in use, the gypsum powder is put into the pushing space 4 in the cylinder 1 through the feed port 37. During the putting process, the gypsum powder should be put in at a uniform and slow speed. First, the gypsum powder is placed on the feeding ring 31, and then the gypsum powder is brought into the feeding hole 33 on the feeding ring 31 by uniformly rotating the pushing shaft 23. At the same time, cooling gas is introduced into the ventilation cavity 34 to cool the feeding ring 31 from the inside to the outside. In this process, the gypsum powder contacts the surface of the feeding ring 31 for pre-cooling, and at the same time, the heat above the inside of the cylinder 1 is also cooled to prevent the temperature from dropping too quickly, resulting in uneven strength of the gypsum powder.

[0041] The gypsum powder enters the cooling space 5 below the cylinder 1 from the material through hole 33, and the coolant is passed into the coolant annular channel 11 for circulation to cool and dissipate the heat in the lower part of the cylinder 1. The gypsum powder is stirred and turned by the stirring shaft 32 to evenly dissipate the internal heat until the heat dissipation work is completed. The gypsum powder is stirred by the stirring shaft 32 to prevent agglomeration caused by accumulation of gypsum powder during the heat dissipation process, which in turn causes uneven heat dissipation. At the same time, the coolant annular channel 11 is used to improve the heat dissipation effect. The entire heat dissipation process is in the form of pre-cooling and cooling, which can well ensure that the temperature of the gypsum powder in the heat dissipation is gradually reduced, and there will be no problem that the gypsum strength may decrease due to the excessive cooling rate, which can prevent stress from being generated inside the gypsum powder, and the formation of cracks or other defects. Therefore, the stability of product quality can be guaranteed, and the strength and durability of the gypsum powder in subsequent use can be improved.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment that includes a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment that includes the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as not to repeat too much.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling device for gypsum powder, characterized in that: It comprises a barrel (1), a feeding device and a cooling device, wherein the feeding device and the cooling device are arranged inside the barrel (1); A cooling liquid annular channel (11) is provided in the cylinder (1), the upper end of the cooling liquid annular channel (11) is connected to a liquid inlet (12), and the lower end of the cooling liquid annular channel (11) is connected to a liquid outlet (13); The feeding device comprises a cover body (21), a driving motor (22) and a pushing shaft (23); the cover body (21) is arranged above the barrel (1); an output through hole (24) is arranged on the cover body (21); the pushing shaft (23) is provided with a connecting through hole (25); the output end of the driving motor (22) passes through the output through hole (24) and is connected to the connecting through hole (25), driving the pushing shaft (23) to rotate in the barrel (1); The cooling device comprises a material passing ring body (31) and a stirring shaft (32); the material passing ring body (31) is arranged below a material pushing shaft (23); a material pushing space (4) is formed between the upper part of the material passing ring body (31) and the barrel (1); and a cooling space (5) is formed between the lower part of the material passing ring body (31) and the barrel (1); a plurality of material passing holes (33) arranged circumferentially are provided on the material passing ring body (31); a ventilation cavity (34) is provided inside the material passing ring body (31); an air inlet hole (35) is provided on one side of the ventilation cavity (34), and an air outlet hole (36) is provided on the other side; a stirring through hole (38) is provided at the center of the material passing ring body (31); a rotating shaft (321) is provided at the upper end of the stirring shaft (32); the rotating shaft (321) passes through the stirring through hole (38) and is connected to the connecting through hole (25), so that the pushing shaft (23) drives the stirring shaft (32) to rotate.

2. A cooling device for gypsum powder according to claim 1, characterized in that: A feed port (37) is provided on one side of the cylinder (1), and the feed port (37) is connected to the pushing space (4) and is used for transporting gypsum powder into the pushing space (4).

3. A cooling device for gypsum powder according to claim 1, characterized in that: An air inlet (351) is provided on one side of the cylinder (1), the position of the air inlet (351) corresponds to the air inlet hole (35), and is used for cooling gas to enter the ventilation cavity (34); an air outlet (361) is provided on the other side of the cylinder (1), the position of the air outlet (361) corresponds to the air outlet hole (36), and is used for cooling gas to flow out of the ventilation cavity (34).

4. A cooling device for gypsum powder according to claim 1, characterized in that: A plurality of groups of stirring blades (322) are provided on the stirring shaft (32).

5. A cooling device for gypsum powder according to claim 1, characterized in that: A discharge cylinder (6) is provided below the cylinder body (1), and a closing plate (7) is provided between the discharge cylinder (6) and the cylinder body (1). The closing plate (7) is opened or closed to facilitate the discharge of gypsum powder.

6. A cooling device for gypsum powder according to claim 5, characterized in that: Inserting pieces (72) are provided on both sides below the cylinder (1).

7. A cooling device for gypsum powder according to claim 6, characterized in that: The closing plate (7) is provided with an insertion hole (73), a latch (71) is provided in the insertion hole (73), one side of the closing plate (7) is fixed in the discharge barrel (6) through a rotating shaft, and the other side of the closing plate (7) is fixed in the insertion sheet (72) through the latch (71).

8. A cooling device for gypsum powder according to claim 5, characterized in that: The discharge cylinder (6) is also provided with a movably connected discharge door (61).

9. A cooling device for gypsum powder according to claim 1, characterized in that: The push shaft (23) is in the shape of a truncated cone, with arc-shaped blades (231) connected to both sides.

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