V-shaped powder concentrator

Abstract

According to the V-shaped powder selecting machine, the material distributing device is connected to the upper portion of the feeding port, the material distributing bin in the material distributing device is divided into the multiple channels through the multiple partition plates perpendicular to the width direction of the shell, material flow input into the material distributing bin can be divided into multiple strands, and therefore a uniform material curtain can be formed when the material flow is input into the shell; the defect that when materials are transferred into a powder concentrator shell through a single-channel discharging pipe in the prior art, the materials enter the shell in a single-strand mode, consequently, the materials are distributed unevenly, a uniform material curtain is difficult to form, and material sorting is affected is overcome. In addition, the connecting position of the material distribution bin and the discharging channel is in a right-angle shape, the width of the material distribution bin is larger than that of the discharging channel, through the arrangement, the materials can be scattered through collision when falling into the discharging channel from the material distribution bin, the content of large particles in the materials is reduced, and therefore the sorting efficiency of the materials is improved.

Description

Technical Field

[0001] The present application relates to the technical field of powder separation and classification, and in particular to a V-type powder separator. Background Art

[0002] V-type powder concentrator has the functions of breaking up, drying and grading materials. It can form various grinding process systems with roller press or vertical mill and other equipment, and has been widely used in the building materials and cement industry. During use, the cement cake pressed by the roller press gradually falls through the stepped impact plate in the powder concentrator. During this process, the cake is dispersed, and small particles of cement are discharged from the top of the powder concentrator through the guide vane system with the airflow in the opposite direction of the material, and the coarser particles fall back to the impact plate and are discharged from the bottom together with the coarse particles.

[0003] When the V-type powder classifier is used in conjunction with a roller press, the material crushed by the roller press is transferred to the V-type powder classifier through the discharge chute for selection. However, the material is biased to one side of the discharge chute due to the inclination of the discharge chute during material transmission. The material gathers on the biased side and falls in a single stream, making it difficult for the material to form a uniform material curtain when entering the powder classifier, thus affecting the powder selection effect. Utility Model Content

[0004] The present application provides a V-type powder classifier to solve the problem in the existing method that a material is transported to the powder classifier by a discharge chute, resulting in the material falling in a single stream toward one side of the discharge chute, making it difficult for the material to form a uniform material curtain when entering the powder classifier, thereby affecting the powder selection effect.

[0005] The present application provides a V-type powder classifier, comprising a V-shaped shell, an air inlet is provided on one side of the shell, an air outlet is provided on the opposite side, a feed inlet is provided on the top, and a discharge port is provided on the bottom; the feed inlet is connected to a distributor; the distributor comprises a distribution bin and a discharge channel;

[0006] The material distribution bin is connected with the material feed port through a material discharge channel, and a plurality of partitions are vertically arranged in the material distribution bin, and the plurality of partitions divide the material distribution bin into a plurality of chambers, and the plurality of partitions are perpendicular to the width direction of the shell;

[0007] The connection between the material distribution bin and the material discharge channel is in a right angle shape, and the width of the material distribution bin is greater than the width of the material discharge channel.

[0008] Optionally, a plurality of air guide plates are arranged in a stepped manner from top to bottom in an area near the air inlet in the housing, the air guide plates are arranged obliquely, and the space between the air guide plates and the air inlet forms an air inlet chamber;

[0009] In the area near the air outlet in the shell, a plurality of guide plates are arranged in a stepped manner from top to bottom, the guide plates are arranged obliquely, and the space between the guide plates and the air outlet forms an air outlet chamber;

[0010] The planes where the air guide plate and the flow guide plate are located intersect in a V shape, and the area between the air guide plate and the flow guide plate forms an air selection chamber;

[0011] The uppermost air guide plate and the air guide plate are closed with the inner top of the shell body by a baffle.

[0012] Optionally, a scattering plate is horizontally arranged in the shell near the feed inlet.

[0013] Optionally, the breaking plate is rotatably connected to the shell;

[0014] The lower surface of the scattering plate is also connected to the shell through an elastic structure for supporting the scattering plate.

[0015] Optionally, a wind distribution plate is provided on one side of the plurality of wind guide plates close to the air inlet;

[0016] The air distribution plate separates the air guide plate from the air inlet, and a plurality of through holes are provided on the air distribution plate.

[0017] Optionally, a plurality of material distribution plates are staggered from top to bottom in an area near the feed inlet in the shell;

[0018] The two ends of the dividing plate are connected to the inner walls of the shell on both sides opposite to each other. The dividing plate is arranged parallel to the width direction of the shell. The dividing plate is triangular in shape with the top angle facing upward.

[0019] Optionally, a wind shield is provided between two adjacent wind guide plates, and the wind shield is rotatably connected to a side of the wind guide plate close to the air inlet; a side of the wind shield close to the shell is connected to an operating rod passing through the shell, and a slide groove matching the moving track of the operating rod is provided on the shell close to the operating rod; the lower surface of the slide groove is corrugated;

[0020] A blocking piece is also fixedly arranged on the operating rod for blocking the slide slot.

[0021] The present application provides a V-type powder classifier, which is connected to a distributor above the feed inlet. The distribution bin in the distributor is divided into multiple channels by multiple partitions perpendicular to the width direction of the shell, and the material flow input into the distribution bin can be divided into multiple strands, so as to form a uniform material curtain when the material flow is input into the shell, overcoming the disadvantage that when the traditional material is transported to the powder classifier shell through a single-channel discharge pipe, the material enters the shell in a single strand, resulting in uneven material distribution and difficulty in forming a uniform material curtain, thereby affecting the material sorting. In addition, the connection between the distribution bin and the discharge channel is at a right angle, and the width of the distribution bin is greater than the width of the discharge channel. This arrangement allows the material to be broken up by impact when it falls from the distribution bin into the discharge channel, reducing the content of large particles in the material, thereby improving the material sorting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the internal main structure of a V-type powder selector provided in one embodiment of the present application;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a V-type powder classifier provided in one embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of a scattering plate provided in one embodiment of the present application;

[0026] Figure 4 A schematic diagram of the three-dimensional structure of a V-type powder classifier provided in another embodiment of the present application;

[0027] Figure 5 A schematic diagram of the three-dimensional structure of a V-type powder classifier provided in one embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of a windshield provided in one embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of an operating lever provided in one embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Shell; 2. Distributor; 11. Wind guide plate; 12. Guide plate; 13. Breaking plate; 14. Air distribution plate; 15. Material dividing plate; 16. Wind shield; 17. Operating lever; 21. Distributor bin; 22. Material discharge channel; 101. Air inlet; 102. Air outlet; 103. Feed inlet; 104. Discharge outlet; 131. Elastic structure; 171. Slide; 172. Baffle; 211. Partition. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are 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 also fall within the scope of protection of the present application.

[0033] like Figure 1 and Figure 2As shown, the present application provides a V-type powder classifier, including a V-shaped housing 1, an air inlet 101 is provided on one side of the housing 1, an air outlet 102 is provided on the opposite side, a feed inlet 103 is provided on the top, and a discharge port 104 is provided on the bottom; the feed inlet 103 is communicated with a distributor 2; the distributor 2 includes a distribution bin 21 and a discharge channel 22;

[0034] The material distribution bin 21 is connected to the material feed port 103 through the material discharge channel 22. A plurality of partitions 211 are vertically arranged in the material distribution bin 21. The plurality of partitions 211 divide the material distribution bin 21 into a plurality of chambers. The plurality of partitions 211 are perpendicular to the width direction of the housing 1.

[0035] The connection between the material distribution bin 21 and the material discharge channel 22 is in a right angle, and the width of the material distribution bin 21 is greater than the width of the material discharge channel 22 .

[0036] In actual use, a distributor 2 is used instead of a material discharge chute, and the length of the distribution bin of the distributor 2 can be selected according to actual conditions, and the distribution bin 21 of the distributor 2 can also be set to an inclined or inclined L-shape according to actual conditions. In the present application, the size of the bins separated by the plurality of partitions 211 can be adjusted according to actual needs, for example, the sizes of the separated bins are all equal.

[0037] When in use, the material crushed by the roller press enters the distributor 2 and falls down, and the falling material enters the distribution bin 21. Under the dividing effect of the partition 211, the falling material flow is divided into multiple streams and falls down, so that the falling material can form a uniform material curtain when entering the shell 1 for air separation. When the falling multiple streams of materials fall from the material distribution bin 21 to the material discharging channel 22, since the connection between the material distribution bin 21 and the material discharging channel 22 is at a right angle, and the width of the material distribution bin 21 is greater than the width of the material discharging channel 22, when the materials hit the right angle connection when falling, the materials that have been lumped after rolling are broken up due to the impact, and the broken up materials fall into the shell 1 through the feed port 103. The sorting air separates the materials in the shell 1 by the specific gravity of the materials from the air inlet 101 of the shell 1, and the materials with small specific gravity are discharged from the air outlet 102 with the air flow of the sorting air, and collected by corresponding devices (such as cyclone separators). During the air separation process, the materials with larger specific gravity are discharged and collected from the discharge port 104 at the bottom of the shell, and are input into the roller press again for crushing.

[0038] The present application provides a V-type powder classifier, which is connected to a distributor 2 above the feed port 103. The distribution bin 21 in the distributor 2 is divided into multiple channels by multiple partitions 211 perpendicular to the width direction of the shell 1, and the material flow input into the distribution bin 21 can be divided into multiple strands, so as to form a uniform material curtain when the material flow is input into the shell 1, overcoming the disadvantage that when the traditional material is transported to the powder classifier shell through a single-channel discharge pipe, the material enters the shell in a single strand, resulting in uneven material distribution and difficulty in forming a uniform material curtain, thereby affecting the material sorting. In addition, the connection between the distribution bin 21 and the discharge channel 22 is at a right angle, and the width of the distribution bin 21 is greater than the width of the discharge channel 22. This setting can make the material fall from the distribution bin 21 into the discharge channel 22. The material is broken up by impact, reducing the content of large particles in the material, thereby improving the material sorting efficiency.

[0039] Optionally, a plurality of air guide plates 11 are arranged in a stepped manner from top to bottom in an area near the air inlet 101 in the housing 1, and the air guide plates 11 are obliquely arranged on the inner wall of the housing 1, and the space between the air guide plates 11 and the air inlet 101 forms an air inlet chamber;

[0040] In the area near the air outlet 102 in the housing 1, a plurality of guide plates 12 are arranged in a stepped manner from top to bottom. The guide plates 12 are obliquely arranged on the inner wall of the housing 1, and the space between the guide plates 12 and the air outlet 102 forms an air outlet chamber.

[0041] The planes where the air guide plate 11 and the air guide plate 12 are located intersect in a V shape, and the area between the air guide plate 11 and the air guide plate 12 forms an air selection chamber;

[0042] The uppermost air guide plate 11 and the air guide plate 12 are closed with the inner top of the housing 1 by a baffle.

[0043] In the present application, the sorting air blown by the fan is blown into the housing 1 from the air inlet 101. After the sorting air enters the housing 1, it is divided into multiple air flows through the air guide plate 11 and flows into the air separation chamber. Since the wind speed of the sorting air near the top of the housing 1 is relatively high, the materials here are not well dispersed, which may cause large particles in the material to not be well sorted and mixed with fine particles and discharged from the air outlet 102, resulting in poor material sorting effect. In the present application, the uppermost air guide plate 11 and the air guide plate 12 are closed with the inner top of the housing 1 by a baffle, which can prevent the sorting air from entering the air separation chamber from here and blowing away the undispersed materials, thereby affecting the sorting effect.

[0044] Optionally, a scattering plate 13 is horizontally arranged in the shell 1 near the feed port 103 .

[0045] In the present application, when the material falls into the shell from the feed port 103 , the material hits the scattering plate 13 and is scattered again.

[0046] Alternatively, if Figure 3 As shown, the breaking plate 13 is rotatably connected to the housing 1;

[0047] The lower surface of the scattering plate 13 is also connected to the housing 1 via an elastic structure 131 for supporting the scattering plate 13 .

[0048] In the present application, since the lower surface of the scattering plate 13 is connected to the shell 1 through an elastic structure 131 (such as a spring or elastic rubber), the material falling onto the scattering plate 13 can play a buffering role, which can alleviate the impact of the material on the scattering plate 13, and due to the existence of the rebound force of the elastic structure 131, it can also have a secondary scattering effect on the material.

[0049] Alternatively, if Figure 4 As shown, a wind distribution plate 14 is provided on one side of the plurality of wind guide plates 11 close to the air inlet 101;

[0050] The air distribution plate 14 separates the air guide plate 11 from the air inlet 101 , and a plurality of through holes are formed on the air distribution plate 14 .

[0051] In the present application, when in use, the sorting air blown by the fan is blown into the shell 1 from the air inlet 101. After the sorting air enters the shell 1, it is evenly distributed through the air distribution plate 14 with through holes, and then divided into multiple air flows through the air guide plate 11 and flow into the air sorting chamber.

[0052] Optionally, a plurality of material distribution plates 15 are staggered from top to bottom in the area near the feed port 103 in the housing 1;

[0053] The two ends of the dividing plate 15 are connected to the inner walls of the shell 1 on both sides opposite to each other. The dividing plate 15 is arranged parallel to the width direction of the shell 1 . The dividing plate 15 is triangular in shape with the top angle facing upward.

[0054] In the present application, when the material falls, a material curtain may be formed, but the material may be unevenly distributed. The material dividing plate 15 may be provided to further disperse the material curtain, thereby making the material evenly dispersed, thereby improving the sorting effect.

[0055] Alternatively, if Figure 5 and Figure 6 As shown, a wind shield 16 is provided between two adjacent wind guide plates 11, and the wind shield 16 is rotatably connected to a side of the wind guide plate 11 close to the air inlet 101; a side of the wind shield 16 close to the housing 1 is connected to an operating rod 17 passing through the housing 1, and a slide groove 171 matching the moving track of the operating rod 17 is provided on the housing 1 close to the operating rod 17; the lower surface of the slide groove 171 is corrugated;

[0056] A blocking piece 172 is also fixedly disposed on the operating rod 17 for blocking the sliding groove 171 .

[0057] In the present application, the lower surface of the chute 171 is corrugated to facilitate the operating rod 17 to stay at the corrugation to prevent the sorting wind from blowing the wind shield 16 away from the set position. Figure 7 As shown, a groove can also be provided on the baffle 172, and the width of the groove is bounded by the width of the baffle 172. One end of the operating rod 17 is clamped in the groove and can slide along the groove (the wind shield 16 and the baffle 172 are fixedly connected), that is, the sliding range is the width of the slide groove 171. When the wind shield 16 needs to be stopped at the set position, the operating rod 17 can be slid down and the operating rod 17 can be clamped on the corrugation to better position the operating rod. When the wind shield 16 needs to be rotated, the operating rod 17 can be slid up so that the operating rod 17 leaves the corrugation to facilitate the control of the rotation of the wind shield 16.

[0058] In the present application, the width of the baffle 172 is the same as that of the chute 171, and the length is at least twice the length of the chute 171. The operating rod 17 is connected to the central position of the baffle 172. This arrangement enables the baffle 172 to cover the chute 171 when the operating rod 17 moves to any position in the chute 171, thereby preventing material from leaking from the chute 171.

[0059] During use, since the speed of the sorting wind near the top of the shell 1 is relatively high, the material here cannot be well dispersed, so that large particles in the material may not be well sorted and mixed with fine particles and discharged from the air outlet 102, resulting in poor material sorting effect. The operating rod 17 can be moved along the slide groove 171, and the wind shield plate 16 can be driven to rotate by the operating rod 17 to change the space between the two adjacent wind guide plates 11, thereby adjusting the wind speed, thereby avoiding the high-speed sorting wind from blowing away the undispersed material, resulting in the disadvantage of poor sorting effect.

[0060] A V-type powder classifier, its working process is as follows:

[0061] When in use, the material crushed by the roller press enters the distributor 2 and falls down, and the falling material enters the distribution bin 21. Under the dividing effect of the partition 211, the falling material flow is divided into multiple streams and falls down, so that the falling material can form a uniform material curtain when entering the shell 1 for air separation. When the falling multiple streams of materials fall from the distribution bin 21 to the discharge channel 22, since the connection between the distribution bin 21 and the discharge channel 22 is at a right angle and the width of the distribution bin 21 is greater than the width of the discharge channel 22, when the materials hit the right-angled connection when falling, the impact will break up the materials that have clumps after rolling, and the broken up materials fall into the feed port 103 from the discharge channel. In the process of falling from the feed port 103 into the shell, the materials hit the breaking plate 13 and are broken up again. Since the lower surface of the breaking plate 13 is connected to the shell 1 through an elastic structure 131 (such as a spring or elastic rubber), the materials falling onto the breaking plate 13 can play a buffering role and alleviate the impact of the materials on the breaking plate 13. In addition, due to the existence of the rebound force of the elastic structure 131, the materials can also be broken up for the second time. After being broken up again by the breaking plate 13, the materials fall through the dividing plate 15 for diversion, so that the materials form a uniform material curtain and fall down.

[0062] At the same time, the sorting air blown by the fan is blown into the shell 1 from the air inlet 101. After the sorting air enters the shell 1, it is evenly distributed through the air distribution plate 14 with through holes, and then divided into multiple air flows through the air guide plate 11 and flows into the air sorting chamber. A wind shield 16 is arranged between two adjacent air guide plates 11. The wind shield 16 is rotatably connected to the side of the air guide plate 11 close to the air inlet 101. Since the wind speed of the sorting air near the top of the shell 1 is relatively high, the materials here are not well dispersed, which may cause large particles in the material to be not well sorted and mixed with fine particles and discharged from the air outlet 102, resulting in poor sorting effect of the material. In this application, the uppermost air guide plate 11 and the guide plate 12 are closed with the inner top of the shell 1 by a baffle, which can reduce the occurrence of this phenomenon. In addition, the operating rod 17 can be moved along the slide 171, and the wind shield 16 can be driven by the operating rod 17 to rotate to change the space between the two adjacent air guide plates 11, thereby adjusting the wind speed. The blown sorting air contacts the materials falling into the air separation chamber, and separates the materials according to their specific gravity. Due to the blowing of the sorting air, some materials move from the air separation chamber to the air outlet chamber, and collide with the guide plate 12 to disperse and crush the materials again, thereby improving the air separation efficiency. The air-selected materials are discharged from the air outlet 102 along with the sorting air flow, and collected by corresponding devices (such as cyclone separators). During the air separation process, materials with a larger specific gravity are discharged from the discharge port 104 at the bottom of the shell, collected, and input into the roller press again for crushing.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A V-type powder classifier, comprising a V-shaped housing (1), wherein one side of the housing (1) is provided with an air inlet (101), an opposite side is provided with an air outlet (102), a top is provided with a material inlet (103), and a bottom is provided with a material outlet (104); characterized in that: The feed inlet (103) is in communication with a distributor (2); the distributor (2) comprises a distribution bin (21) and a material discharge channel (22); The material distribution bin (21) is in communication with the material feed port (103) via a material discharge channel (22); a plurality of partitions (211) are vertically arranged in the material distribution bin (21); the plurality of partitions (211) divide the material distribution bin (21) into a plurality of chambers; the plurality of partitions (211) are perpendicular to the width direction of the shell (1); The connection between the material distribution bin (21) and the material discharge channel (22) is in a right angle shape, and the width of the material distribution bin (21) is greater than the width of the material discharge channel (22).

2. The V-type powder separator according to claim 1, characterized in that: A region in the housing (1) close to the air inlet (101) is provided with a plurality of air guide plates (11) arranged in a stepped manner from top to bottom, the air guide plates (11) being arranged at an angle, and the space between the air guide plates (11) and the air inlet (101) forming an air inlet chamber; A region in the shell (1) close to the air outlet (102) is provided with a plurality of guide plates (12) arranged in a stepped manner from top to bottom, the guide plates (12) being arranged at an angle, and the space between the guide plates (12) and the air outlet (102) forming an air outlet chamber; The planes where the air guide plate (11) and the flow guide plate (12) are located intersect to form a V-shape, and the area between the air guide plate (11) and the flow guide plate (12) forms an air selection chamber; The uppermost air guide plate (11) and the flow guide plate (12) are closed with the inner top of the shell (1) by a baffle.

3. The V-type powder separator according to claim 1, characterized in that: A scattering plate (13) is horizontally arranged in the housing (1) at a position close to the feed port (103).

4. The V-type powder separator according to claim 3, characterized in that: The breaking plate (13) is rotatably connected to the housing (1); The lower surface of the scattering plate (13) is also connected to the housing (1) via an elastic structure (131) for supporting the scattering plate (13).

5. The V-type powder separator according to claim 2, characterized in that: An air distribution plate (14) is provided on one side of the plurality of air guide plates (11) close to the air inlet (101); The air distribution plate (14) separates the air guide plate (11) from the air inlet (101), and a plurality of through holes are provided on the air distribution plate (14).

6. The V-type powder separator according to claim 1, characterized in that: A plurality of material distribution plates (15) are arranged alternately from top to bottom in an area near the feed port (103) in the shell (1); The two ends of the material dividing plate (15) are connected to the inner walls of the shell (1) on two opposite sides. The material dividing plate (15) is arranged parallel to the width direction of the shell (1). The material dividing plate (15) is triangular in shape with the top angle facing upwards.

7. The V-type powder separator according to claim 2, characterized in that: A wind shield (16) is provided between two adjacent wind guide plates (11), and the wind shield (16) is rotatably connected to a side of the wind guide plate (11) close to the air inlet (101); a side of the wind shield (16) close to the shell (1) is connected to an operating rod (17) passing through the shell (1), and a slide groove (171) matching the moving trajectory of the operating rod (17) is provided on the shell (1) close to the operating rod (17); the lower surface of the slide groove (171) is corrugated; The operating rod (17) is also fixedly provided with a blocking piece (172) for blocking the sliding groove (171).

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