A curtain-type cyclone separator for perlite production

Abstract

This utility model relates to an air curtain buffer cyclone separator for perlite production. This utility model effectively solves the problem that traditional cyclone separators easily cause expanded perlite particles to break and lead to internal blockage. This air curtain buffer cyclone separator for perlite production uses an air blowing assembly to continuously blow cold air from the upper and lower ring air curtain components. The upper ring air curtain component forms an annular cold air curtain barrier below the inlet of the separator body, rapidly cooling the high-temperature expanded perlite entering the separator body and preventing it from sticking to the walls and causing blockage. The lower ring air curtain component forms an upward air cushion layer, which supports the falling expanded perlite, buffering its kinetic energy and effectively preventing it from breaking during fall, thus improving production quality. The bottom ring mechanism periodically sprays high-pressure pulses onto the inner wall of the bottom cone tube, preventing impurities from accumulating inside the bottom cone tube and avoiding blockage at the bottom of the separator body.

Description

Technical Field

[0001] This utility model belongs to the field of cyclone separator technology, specifically relating to an air curtain buffer cyclone separator for perlite production. Background Technology

[0002] Expanded perlite is a natural acidic glassy volcanic lava, a non-metallic mineral, encompassing perlite, resinstone, and obsidian, differing only in their water of crystallization content. Because its volume expands rapidly by 4 to 30 times under high-temperature conditions of 1000–1300℃, it is collectively referred to as expanded perlite. Expanded perlite is a white granular material with a honeycomb-like internal structure, produced by preheating perlite ore sand and then instantaneously roasting it at high temperatures to expand it.

[0003] In the production and processing of expanded perlite, a cyclone separator is required to screen the expanded perlite, thereby separating the perlite from the dust and gas generated during processing. Because the finished expanded perlite has a low density and is easily broken, traditional cyclone separators, due to their high-speed airflow, cause the perlite to collide with the separator's inner wall or fall with high kinetic energy, resulting in a high density of broken perlite particles, which affects production quality. At the same time, the expanded perlite itself has a high temperature after being heated, and its surface stickiness at high temperatures may cause it to adhere to the separator's tube wall, causing blockage. Furthermore, during long-term operation, large dust particles or flaky structures of expanded perlite will accumulate at the bottom outlet of the cyclone separator. It is difficult to remove the debris from the bottom using only the airflow inside the separator, and long-term accumulation will cause blockage at the bottom of the separator, affecting its use. Utility Model Content

[0004] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides an air curtain buffer cyclone separator for perlite production. This air curtain buffer cyclone separator can form an annular cold air curtain barrier below the inlet of the separator body, thereby rapidly cooling the high-temperature expanded perlite entering the separator body, eliminating its surface stickiness, and preventing it from sticking to the wall and clogging. The lower annular air curtain component can blow out an upward airflow along the swirling direction, forming an upward air cushion layer, which can effectively prevent the perlite from breaking when it falls, effectively reduce broken particles, and improve production quality. The bottom annular mechanism can periodically spray high-pressure pulse jets onto the inner wall of the bottom cone tube, thereby preventing impurities from accumulating in the bottom cone tube and avoiding blockage at the bottom of the separator body.

[0005] An air curtain buffer cyclone separator for perlite production includes a separator body and a bottom conical tube. An upper ring air curtain assembly is provided at the top of the outer surface of the separator body to rapidly cool the perlite entering it. A lower ring air curtain assembly is provided in the middle of the outer surface of the separator body to slow the descent kinetic energy of the perlite. An air blowing assembly is provided on the side of the separator body to power the upper and lower ring air curtain assemblies. The bottom conical tube is located at the bottom of the separator body, and a circular mechanism is provided on the outer side of the top of the bottom conical tube to connect it to the separator body and clean its interior.

[0006] Preferably, the upper ring air curtain assembly includes an upper ring pipe, a first air blowing pipe, and a first connecting pipe. The number of first air blowing pipes is several, and the several first air blowing pipes are fixedly connected to the inner ring surface of the upper ring pipe in a ring array. The orientation of the several first air blowing pipes is consistent with the rotation direction of the airflow inside the separator body and is in a horizontal state. The upper ring pipe is fixedly installed at the top of the outer surface of the separator body and below the inlet of the separator body. The several first air blowing pipes are all inserted inside the separator body. The first connecting pipe is connected to the upper ring pipe.

[0007] Preferably, the lower ring air curtain assembly includes a lower ring pipe, a second air blowing pipe, and a second connecting pipe. The number of second air blowing pipes is the same as the number of first air blowing pipes, and several second air blowing pipes are fixedly connected to the inner ring surface of the lower ring pipe in a ring array. The orientation of several second air blowing pipes is consistent with the rotation direction of the airflow inside the separator body, and the outlet is inclined upwards. The inclination angle of the outlet of several second air blowing pipes relative to the horizontal plane is 15°. The lower ring pipe is fixedly installed at the connection between the straight cylindrical part and the lower conical part of the separator body, and several second air blowing pipes are inserted inside the separator body. The second connecting pipe is connected to the lower ring pipe.

[0008] Preferably, one end of each of the first and second air-blowing pipes that penetrates into the separator body is embedded in the inner wall of the separator body, and the outlet ends of each pipe do not extend beyond the inner wall of the separator body.

[0009] Preferably, the air blowing assembly includes a mounting base and an air pump. The mounting base is fixedly installed on the side of the separator body and located between the upper and lower ring pipes. The air pump is fixedly installed on the side of the mounting base, and the air inlet ends of the first and second connecting pipes are both connected to the air outlet end of the air pump.

[0010] Preferably, the annular mechanism includes an outer fixed ring, an annular high-pressure air passage, and a connecting pipe head. The inclination angle of the inner annular surface of the outer fixed ring is consistent with the inclination angle of the bottom cone tube, and the outer fixed ring is fixedly connected to the outside of the separator body and the bottom cone tube. The bottom cone tube is sleeved on the bottom end of the separator body, and the two are on the same axis. An annular gap is formed between the top end of the bottom cone tube and the bottom end of the separator body. The annular high-pressure air passage is opened in the middle of the inner annular surface of the fixed ring and communicates with the annular gap. The connecting pipe head is fixedly installed in the middle of the outer side of the outer fixed ring and communicates with the annular high-pressure air passage and can communicate with an external high-pressure jet device.

[0011] The beneficial effects of the above technical solution are as follows:

[0012] This air curtain buffer cyclone separator for perlite production utilizes an upper ring air curtain assembly, a lower ring air curtain assembly, and a circular mechanism. The air blowing assembly continuously blows cold air from both the upper and lower ring air curtain assemblies. The upper ring air curtain assembly forms a ring-shaped cold air curtain barrier below the inlet of the separator body, rapidly cooling the high-temperature expanded perlite entering the separator body, eliminating its surface stickiness, and preventing wall blockage. Furthermore, the air blowing direction of the upper ring air curtain assembly is the same as the swirling direction inside the separator, increasing the swirling speed and achieving better separation. The lower ring air curtain assembly blows an upward-sloping airflow along the swirling direction, forming an upward air cushion layer that supports the falling expanded perlite, buffering its kinetic energy and effectively preventing it from breaking during fall, thus reducing the breakage rate and improving production quality. The circular mechanism at the bottom periodically applies high-pressure pulse jets to the inner wall of the bottom cone tube, preventing impurities from accumulating inside and avoiding blockage at the bottom of the separator body, ensuring long-term efficient operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the disassembled state of this utility model;

[0015] Figure 3 This is a schematic diagram of the disassembled bottom conical tube of this utility model;

[0016] Figure 4 This is a schematic cross-sectional view of the bottom conical tube of this utility model.

[0017] In the diagram: 1. Separator body; 2. Bottom cone tube; 3. Upper ring air curtain assembly; 301. Upper ring pipe; 302. First air blowing pipe; 303. First connecting pipe; 4. Lower ring air curtain assembly; 401. Lower ring pipe; 402. Second air blowing pipe; 403. Second connecting pipe; 5. Air blowing assembly; 501. Mounting base; 502. Air pump; 6. Circular mechanism; 601. Outer fixing ring; 602. Circular high-pressure air path; 603. Connecting pipe head; 7. Circular gap. Detailed Implementation

[0018] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 4 The embodiments are described in detail below.

[0019] This embodiment provides an air curtain buffer cyclone separator for perlite production, as shown in the attached figure. Figure 1-4 As shown, the separator includes a separator body 1 and a bottom conical tube 2. The top of the outer surface of the separator body 1 is equipped with an upper ring air curtain assembly 3, which rapidly cools the perlite entering the separator body. The upper ring air curtain assembly 3 includes an upper ring pipe 301, a first air blowing pipe 302, and a first connecting pipe 303. Several first air blowing pipes 302 are fixedly connected to the inner ring surface of the upper ring pipe 301 in a ring array. The orientation of the several first air blowing pipes 302 is consistent with the rotation direction of the airflow inside the separator body 1 and is horizontal. The airflow blown out by the several first air blowing pipes 302 is in the same direction as the swirling flow inside the separator body 1, which can promote the swirling intensity. The expanded perlite and air entering the separator body 1 from the inlet... Since the flow is at a high temperature, it is difficult to cool the expanded perlite in a short time. The surface of the expanded perlite at high temperature has a certain stickiness, so it may adhere to the inner wall of the separator body 1, which will affect the swirling effect. At the same time, excessive perlite adhesion may cause blockage, affecting the normal operation of cyclone separation. Therefore, multiple first air blowing pipes 302 are used to continuously blow cold air below the inlet, which can quickly cool the surface of the perlite, thereby effectively reducing its surface stickiness and preventing it from adhering to the inner wall of the separator body 1. The upper ring pipe 301 is fixedly installed at the top of the outer surface of the separator body 1 and near the bottom of the inlet of the separator body 1. Several first air blowing pipes 302 are all inserted inside the separator body 1, and the first connecting pipe 303 is connected to the upper ring pipe 301.

[0020] A lower ring air curtain assembly 4 is provided in the middle of the outer surface of the separator body 1 to mitigate the kinetic energy of the perlite's descent. The lower ring air curtain assembly 4 includes a lower ring pipe 401, a second air blowing pipe 402, and a second connecting pipe 403. The number of second air blowing pipes 402 is the same as the number of first air blowing pipes 302, and several second air blowing pipes 402 are fixedly connected to the inner ring surface of the lower ring pipe 401 in a ring array. The orientation of several second air blowing pipes 402 is consistent with the rotation direction of the airflow inside the separator body 1, and the outlet is tilted obliquely upward. The tilt angle of the outlet of several second air blowing pipes 402 relative to the horizontal plane is 15°, which can blow out obliquely upward airflow. However, the overall airflow direction is still consistent with the swirling direction inside the separator body 1. Therefore, when the expanded perlite falls above the lower ring air curtain assembly 4, the obliquely upward airflow blown out by the multiple second air blowing pipes 402 can buffer the kinetic energy of the expanded perlite's descent, thereby preventing the expanded perlite from breaking due to rapid descent and ensuring the expanded perlite's stability. The perlite yield is higher, improving production quality. Furthermore, the airflow from the second air-blowing pipe 402 does not affect the swirling direction, ensuring the airflow rotation inside the separator body 1. The lower ring pipe 401 is fixedly installed at the connection between the straight cylindrical section and the lower conical section of the separator body 1. The second connecting pipe 403 connects to the lower ring pipe 401, and several second air-blowing pipes 402 are inserted inside the separator body 1. The ends of several first air-blowing pipes 302 and second air-blowing pipes 402 inserted into the separator body 1 are embedded in the inner wall of the separator body 1, and their outlet ends do not extend beyond the inner wall of the separator body 1. This ensures that the first air-blowing pipes 302 and 402 do not affect the swirling flow inside the separator body 1 or the falling of the expanded perlite. Simultaneously, both the first air-blowing pipes 302 and 402 continuously blow air outwards, preventing impurities from entering and causing blockages, thus ensuring normal airflow from both the first air-blowing pipes 302 and 402.

[0021] The side of the separator body is provided with an air blowing assembly 5 that can power the upper and lower ring air curtain assemblies. The air blowing assembly 5 includes a mounting base 501 and an air pump 502. The mounting base 501 is fixedly installed on the side of the separator body 1 and is located between the upper ring pipe 301 and the lower ring pipe 401. The air pump 502 is fixedly installed on the side of the mounting base 501, and the air inlet ends of the first connecting pipe 303 and the second connecting pipe 403 are both connected to the air outlet end of the air pump 502. The air pump 502 is electrically connected to an external control unit. When the air pump 502 is running, it can blow air into the upper ring pipe 301 and the lower ring pipe 401 through the first connecting pipe 303 and the second connecting pipe 403 respectively, thereby causing multiple first air blowing pipes 302 and second air blowing pipes 402 to blow air outward. A refrigeration device can be installed at the air inlet end of the air pump 502 so that the first air blowing pipes 302 and the second air blowing pipes 402 blow out air at a lower temperature, which is beneficial to the rapid cooling of the expanded perlite.

[0022] The bottom cone tube 2 is located at the bottom of the separator body 1. The top of the bottom cone tube 2 is provided with an annular mechanism 6, which can connect it to the separator body 1 and clean its interior. The annular mechanism 6 includes an outer fixing ring 601, an annular high-pressure air passage 602 and a connecting pipe head 603. The inclination angle of the inner ring surface of the outer fixing ring 601 is the same as the inclination angle of the bottom cone tube 2, and the outer fixing ring 601 is fixedly connected to the outside of the separator body 1 and the bottom cone tube 2. The bottom cone tube 2 is sleeved on the bottom end of the separator body 1 and the two are on the same axis. The inclination of the outer surface and the inner surface of the bottom cone tube 2 are the same as the inclination of the bottom cone of the separator body 1. The taper of the two is consistent, which can ensure that the expanded perlite falls smoothly.

[0023] The bottom cone tube 2 and the separator body 1 are complementaryly connected, and the two are connected as a whole by an outer fixing ring 601. An annular gap 7 is formed between the top end of the bottom cone tube 2 and the bottom end of the separator body 1. An annular high-pressure gas passage 602 is opened in the middle of the inner annular surface of the outer fixing ring 601 and communicates with the annular gap 7. The annular high-pressure gas passage 602 and the end of the annular gap 7 near the outer side of the bottom cone tube 2 are completely aligned. The annular gap 7 communicates with the inner surface of the bottom cone tube 2, and the inclination angle of the annular gap 7 is the same as the inclination angle of the bottom cone tube 2. The connecting pipe head 603 is fixedly installed in the middle of the outer side of the outer fixing ring 601 and is connected to the annular high-pressure air passage 602 and can be connected to the external high-pressure jet device; the external high-pressure jet device can periodically spray high-pressure pulse airflow into the annular high-pressure air passage 602. The high-pressure pulse airflow will be sprayed along the annular gap 7 towards the inner wall of the bottom cone tube 2, and can spray the entire annular surface of the inner wall of the bottom cone tube 2, thereby blowing away the impurities on the bottom cone tube 2, avoiding the accumulation of impurities and causing blockage of the separator body 1, and ensuring the normal operation of the separator body 1.

[0024] In summary, the operating steps of this air curtain buffer cyclone separator for perlite production are as follows:

[0025] 1. Before the perlite is heated and expanded and enters the separator body 1, the air pump 502 is run to keep the first air pipe 302 and the second air pipe 402 continuously blowing air outward. The expanded perlite mixed with dust enters the separator body 1 and the dust is separated out by cyclone separation.

[0026] 2. The cold air blown out by the first air pipe 302 can quickly cool down the expanded perlite in a high-temperature state, preventing it from adhering to the inner wall of the separator body 1. When the expanded perlite falls to the top of the lower ring air curtain assembly 4, the upward airflow blown out by multiple second air pipes 402 can buffer the falling kinetic energy of the expanded perlite, thereby preventing the expanded perlite from breaking due to rapid falling.

[0027] 3. During the continuous operation of the separator body 1, a high-pressure pulse airflow is periodically sprayed into the annular high-pressure air passage 602 by an external high-pressure jet device. The jet sprays the entire annular surface of the inner wall of the bottom cone tube 2, blowing away impurities on the bottom cone tube 2 and preventing impurities from accumulating and causing blockage of the separator body 1.

[0028] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A gas curtain buffer cyclone separator for perlite production, comprising a separator body (1) and a bottom conical tube (2), characterized in that: The top of the outer surface of the separator body (1) is provided with an upper ring air curtain assembly (3) that can rapidly cool the perlite entering it. The middle of the outer surface of the separator body (1) is provided with a lower ring air curtain assembly (4) that can slow down the kinetic energy of the perlite's descent. The side of the separator body is provided with an air blowing assembly (5) that can power the upper and lower ring air curtain assemblies. The bottom cone tube (2) is located at the bottom of the separator body (1). The top of the bottom cone tube (2) is provided with a ring mechanism (6) that can connect it to the separator body (1) and clean its interior.

2. The air curtain buffer cyclone separator for perlite production according to claim 1, characterized in that: The upper ring air curtain assembly (3) includes an upper ring pipe (301), a first air blowing pipe (302), and a first connecting pipe (303). The number of the first air blowing pipes (302) is several, and the several first air blowing pipes (302) are fixedly connected to the inner ring surface of the upper ring pipe (301) in the form of a ring array. The orientation of the several first air blowing pipes (302) is consistent with the rotation direction of the airflow inside the separator body (1) and is in a horizontal state. The upper ring pipe (301) is fixedly installed at the top of the outer surface of the separator body (1) and below the inlet of the separator body (1). The several first air blowing pipes (302) are all inserted inside the separator body (1). The first connecting pipe (303) is connected to the upper ring pipe (301).

3. The air curtain buffer cyclone separator for perlite production according to claim 1, characterized in that: The lower ring air curtain assembly (4) includes a lower ring pipe (401), a second air blowing pipe (402), and a second connecting pipe (403). The number of the second air blowing pipes (402) is the same as the number of the first air blowing pipes (302), and several second air blowing pipes (402) are fixedly connected to the inner ring surface of the lower ring pipe (401) in a ring array. The orientation of several second air blowing pipes (402) is consistent with the rotation direction of the airflow inside the separator body (1), and the outlet is inclined upward. The inclination angle of the outlet of several second air blowing pipes (402) relative to the horizontal plane is 15°. The lower ring pipe (401) is fixedly installed at the connection between the straight cylindrical part and the lower conical part of the separator body (1), and several second air blowing pipes (402) are all inserted inside the separator body (1). The second connecting pipe (403) is connected to the lower ring pipe (401).

4. The air curtain buffer cyclone separator for perlite production according to claim 3, characterized in that: Several first air blowing pipes (302) and second air blowing pipes (402) are inserted into the interior of the separator body (1) at one end, which is embedded in the inner wall of the separator body (1) and the outlet ends of each pipe do not extend beyond the inner wall of the separator body (1).

5. A gas curtain buffer cyclone separator for perlite production according to claim 3, characterized in that: The air blowing assembly (5) includes a mounting base (501) and an air pump (502). The mounting base (501) is fixedly installed on the side of the separator body (1) and located between the upper ring pipe (301) and the lower ring pipe (401). The air pump (502) is fixedly installed on the side of the mounting base (501), and the air inlet ends of the first connecting pipe (303) and the second connecting pipe (403) are both connected to the air outlet end of the air pump (502).

6. The air curtain buffer cyclone separator for perlite production according to claim 1, characterized in that: The annular mechanism (6) includes an outer fixed ring (601), an annular high-pressure air passage (602), and a connecting pipe head (603). The inclination angle of the inner annular surface of the outer fixed ring (601) is consistent with the inclination angle of the bottom cone tube (2), and the outer fixed ring (601) is fixedly connected to the outside of the separator body (1) and the bottom cone tube (2). The bottom cone tube (2) is sleeved on the bottom end of the separator body (1), and the two are on the same axis. An annular gap (7) is formed between the top end of the bottom cone tube (2) and the bottom end of the separator body (1). The annular high-pressure air passage (602) is opened in the middle of the inner annular surface of the outer fixed ring (601) and communicates with the annular gap (7). The connecting pipe head (603) is fixedly installed in the middle of the outer side of the outer fixed ring (601) and communicates with the annular high-pressure air passage (602) and can communicate with external high-pressure jet equipment.

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