Powder selecting equipment

Abstract

The utility model relates to the technical field of building material equipment, in particular to powder selecting equipment. The powder selecting equipment is used for screening particles into at least one fine material part and one coarse material part, the powder selecting equipment comprises a powder selecting body, an air supply device and a negative pressure device, the powder selecting body communicates with the air supply device and the negative pressure device, a plurality of first scattering plates are installed in the powder selecting body, and the first scattering plates are arranged in a stepped mode at the angle alpha deviating from the horizontal line; the multiple first scattering plates are used for scattering particles scattered into the powder selecting body, after materials are put into the powder selecting body, the materials fall into the first scattering plates under the gravity of the materials and then are scattered, and fine materials are wrapped by screening gas fed by the air supply device, so that the fine materials are fed into the negative pressure device; the coarse material part falls to the bottom of the powder selecting body under the gravity of the coarse material part, then screening is completed, and the first scattering plate is arranged at the angle deviating from the horizontal line so that the material scattering capacity can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building material equipment, in particular to a powder selection device. Background Art

[0002] my country is a country with a large demand for building materials. The demand for machine-made sand is huge. The sand-making process will produce fine powder, and the fine powder content in the sand will affect the performance of the sand. At the same time, the price of the fine powder itself is much higher than the unit price of sand. Therefore, sand and micro powder are often sorted.

[0003] The powder selection equipment used in the prior art is relatively expensive. For economic benefit considerations, the present application proposes a powder selection equipment that can achieve powder selection during the material feeding process with lower cost. Utility Model Content

[0004] The utility model aims to provide a powder selection device, which can realize powder selection during the material feeding process, thereby effectively reducing the cost of powder selection.

[0005] To achieve the above-mentioned purpose, the utility model provides a powder selection device for screening particulate matter into at least a fine material part and a coarse material part, the powder selection device comprises a powder selection body, an air supply device and a negative pressure device, the powder selection body is connected to the air supply device and the negative pressure device, the air supply device is arranged on the side wall of the powder selection body, the air supply device is used to transport screening gas into the powder selection body, and the negative pressure device is used to extract the screening gas carrying fine material;

[0006] A plurality of first scattering plates are installed in the powder selection body. The first scattering plates are arranged in a stepped manner at an angle α deviating from the horizontal line. The first scattering plates are used to scatter particles falling into the powder selection body.

[0007] See also Figure 1The powder selection equipment currently used breaks up the material through the rotor driven by the motor to rotate, and then under the action of several groups of guide plates and impact plates, the sand of different particle sizes falls, the finished sand directly enters the finished product bin, and the stone powder is circulated in the circulation space of the cyclone through the air drainage under the action of the fan. As for the technical solution of the present application, the material falls to the breaking plate in the discharging hopper under the action of its own gravity to be broken up, and the negative pressure device is provided. The negative pressure device absorbs the dust raised in the powder selection body through the negative pressure of the pipeline, and other materials are naturally discharged from the bottom of the powder selection body, and the negative pressure device is adjusted. The air volume of the fan can realize the control of the particle size of the absorbed powder. As for the technical solution of the present application, the angle of the first breaking plate is also restricted. The first breaking plate is stepped at an angle α deviating from the horizontal line, and an air flow channel is formed between adjacent first breaking plates. When the air supply device transports screening gas into the powder selection body, the screening gas will be loaded with fine material after passing through the first breaking plate and the second breaking plate, and the screening gas will be extracted by the negative pressure device through the air flow channel, while the coarse material with larger particle size, that is, sand, falls to the bottom of the powder selection body under the action of its own gravity to complete the powder selection.

[0008] Among them, the powder selection body is provided with an outlet and a feed port, the feed port is arranged opposite to the outlet, the powder selection body is also provided with a suction port, the suction port is adapted to the aforementioned negative pressure device, and at least one air flow inlet is also provided on both sides of the powder selection body.

[0009] The powder selection body is provided with a discharge port and a feed port. The discharge port described in the present application is used to discharge coarse material and is arranged at the bottom of the powder selection body. The feed port is used to feed the material to be screened and is arranged at the top of the powder selection body. The suction port is arranged in the middle of the powder selection body to cooperate with the negative pressure device to extract the screening gas carrying fine material.

[0010] Wherein, a second scattering plate is also provided in the powder selection body, and the second scattering plate is arranged opposite to the first scattering plate.

[0011] The second scattering plate is arranged opposite to the first scattering plate, and the second scattering plate is used to cooperate with the first scattering plate, so that after the screening gas passes through the first scattering plate and the second scattering plate respectively, the fine material inside the particles is entrained, and under the combined effect of gravity and the upward flowing screening airflow, the fine material is suspended inside the screening gas and is sucked out by the negative pressure device through the suction port.

[0012] Wherein, a flow diversion guide plate is also provided in the powder selection body, and the flow diversion guide plate is arranged in the middle of the feed port, and the flow diversion guide plate is installed at an angle β deviating from the horizontal line.

[0013] The diverter guide plate is also arranged in the powder selection body described in the present application. The diverter guide plate is arranged on the top of the powder selection body. The diverter guide plate is installed at an angle β that deviates from the horizontal line. The diverter guide plate is placed in the feed port so that when the material falls into the feed port, it is initially diverted by the diverter guide plate. After the diverted material is sent to the screening space between the corresponding first scattering plate and the second scattering plate, powder selection can be achieved.

[0014] Among them, the negative pressure device includes an air outlet pipe, which is connected to the suction port. One end of the air outlet pipe connected to the suction port is a U-shaped structure, and the other end of the air outlet pipe is externally connected to a cyclone. The air outlet pipe is used to extract the screened fine material out of the powder selection body.

[0015] The air outlet pipe is connected to the suction port and cooperates with an external cyclone to achieve negative pressure adsorption. The screening gas carrying fine materials is drawn into the cyclone through negative pressure adsorption, so that the fine material part and the coarse material part in the material can be sorted.

[0016] The utility model discloses a powder selection device, which improves the structure of the powder selection device on the basis of the existing technology, and arranges a negative pressure device and an air supply device. After the material is put into the powder selection body, the material falls into the first breaking up plate by its own gravity and is broken up. The fine material part is entrained by the screening gas sent in by the air supply device, so that the fine material is sent to the negative pressure device, and the coarse material part falls to the bottom of the powder selection body by its own gravity, thereby completing the screening. The first breaking up plate is arranged at an angle deviating from the horizontal line to enhance the ability to break up the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the prior art.

[0019] Figure 2 It is a structural schematic diagram provided by a powder selection device of the utility model.

[0020] Figure 3 The utility model is a schematic diagram of the internal structure of a powder selection body provided by a powder selection device.

[0021] Figure 4 The utility model is a schematic diagram of the side structure of a powder selection body provided by a powder selection device.

[0022] Figure 5 The utility model is a schematic diagram of the principle structure of a powder selection body provided by a powder selection device.

[0023] Figure 6 The utility model is a schematic diagram of the assembly and use of a powder selection body provided by a powder selection device.

[0024] 101-powder selection body, 102-air supply device, 103-negative pressure device, 104-first scattering plate, 105-discharging port, 106-feeding port, 107-suction port, 108-air flow inlet, 109-second scattering plate, 110-dividing guide plate, 111-air outlet pipe. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0027] See also Figures 1 to 6 The utility model provides a powder selection device for screening particulate matter into at least a fine material portion and a coarse material portion, the powder selection device comprising a powder selection body 101, an air supply device 102 and a negative pressure device 103, the powder selection body 101 is connected to the air supply device 102 and the negative pressure device 103, the air supply device 102 is arranged on the side wall of the powder selection body 101, the air supply device 102 is used to transport screening gas into the powder selection body 101, and the negative pressure device 103 is used to extract the screening gas carrying fine material;

[0028] A plurality of first scattering plates 104 are installed in the powder selection body 101 . The first scattering plates 104 are arranged in a stepped manner at an angle α deviating from the horizontal line. The first scattering plates 104 are used to scatter particles falling into the powder selection body 101 .

[0029] See also Figure 1 The powder selection equipment currently used breaks up the material through the rotor driven by the motor to rotate, and then under the action of several groups of guide plates and impact plates, the sand of different particle sizes falls, the finished sand directly enters the finished product bin, and the stone powder is circulated in the circulation space of the cyclone through the air drainage under the action of the fan. As for the technical solution of the present application, the material falls onto the breaking up plate in the discharging hopper under the action of its own gravity to be broken up, and the negative pressure device 103 is provided. The negative pressure device 103 absorbs the dust raised in the powder selection body 101 through the negative pressure of the pipeline, and other materials are naturally discharged from the bottom of the powder selection body 101. The amount of powder sucked can be controlled by adjusting the fan air volume of the negative pressure device 103. As for the technical solution of the present application, the first breaking up plate 104 is also provided. The angle is restricted, the first scattering plate 104 is arranged in a stepped manner at an angle α deviating from the horizontal line, and the selected value of the angle α is 90°~150°, and an air flow channel is formed between the adjacent first scattering plates 104. When the air supply device 102 transports screening gas into the powder selection body 101, the screening gas will be loaded with fine material after passing through the first scattering plate 104 and the second scattering plate 109, and the screening gas will be extracted by the negative pressure device 103 through the air flow channel, while the coarse material with larger particle size, that is, sand, falls to the bottom of the powder selection body 101 under the action of its own gravity, and cannot be transported with the screening gas to complete the powder selection. Compared with the prior art, the technical solution of the present application can reduce the equipment used in the powder selection process, thereby achieving the purpose of reducing energy consumption and reducing equipment costs.

[0030] Furthermore, the powder selection body 101 is provided with a discharge port 105 and a feed port 106, and the feed port 106 is arranged opposite to the discharge port 105. The powder selection body 101 is also provided with a suction port 107, and the suction port 107 is adapted to the aforementioned negative pressure device 103. At least one air flow inlet 108 is also provided on both sides of the powder selection body 101.

[0031] The powder selection body 101 is provided with a discharge port 105 and a feed port 106. The discharge port 105 described in the present application is used to discharge coarse material, and the discharge port 105 is arranged at the bottom of the powder selection body 101. The feed port 106 is used to feed the material to be screened, and is arranged at the top of the powder selection body 101. The suction port 107 is arranged in the middle of the powder selection body 101 to cooperate with the negative pressure device 103 to extract the screening gas carrying fine material.

[0032] Furthermore, a second scattering plate 109 is further provided in the powder selection body 101 , and the second scattering plate 109 is arranged opposite to the first scattering plate 104 .

[0033] The second scattering plate 109 is arranged opposite to the first scattering plate 104, and the second scattering plate 109 is used to cooperate with the first scattering plate 104, so that the particles falling between the first scattering plate 104 and the second scattering plate 109 can be more fully scattered, so that after the screening gas passes through the first scattering plate 104 and the second scattering plate 109 respectively, the fine materials inside the particles are entrained, and under the combined effect of gravity and the upward flowing screening airflow, the fine materials are suspended in the screening gas and are sucked out by the negative pressure device 103 through the suction port 107.

[0034] Furthermore, a flow dividing guide plate 110 is further provided in the powder selection body 101 . The flow dividing guide plate 110 is arranged in the middle of the feed port 106 . The flow dividing guide plate 110 is installed at an angle β that deviates from the horizontal line.

[0035] The powder selection body 101 described in the present application is also provided with the diverter guide plate 110, which is arranged at the top of the powder selection body 101, and is installed at an angle β that deviates from the horizontal line. The diverter guide plate 110 is placed in the feed port 106, so that when the material falls into the feed port 106, it is preliminarily diverted by the diverter guide plate 110, and the diverted material is sent to the first breaking plate 104 and the second breaking plate 109, and then the subsequent powder selection can be realized. The selected value of the angle β is 40°~60°. The acute angle between the diverter guide plate 110 and the horizontal line can not only reduce the wear of the diverter guide plate 110 by the screening airflow, but also achieve better powder dispersion and suspension effect when the material enters between the first breaking plate 104 and the second breaking plate 109 through different paths.

[0036] Furthermore, the negative pressure device 103 includes an air outlet pipe 111, which is connected to the suction port 107. One end of the air outlet pipe 111 connected to the suction port 107 is a U-shaped structure, and the other end of the air outlet pipe 111 is externally connected to a dust collector. The air outlet pipe 111 is used to extract the screened fine material from the powder selection body 101.

[0037] The air outlet pipe 111 is connected to the suction port 107 and cooperates with an external cyclone to achieve negative pressure adsorption. The screening gas carrying fine materials is drawn into the cyclone through negative pressure adsorption, so that the fine material part and the coarse material part in the material can be sorted.

[0038] The utility model provides a powder selection device, which improves the structure of the powder selection device on the basis of the prior art, and sets a negative pressure device 103 and the air supply device 102. After the material is put into the powder selection body 101, the material falls into the first breaking up plate 104 under its own gravity and is broken up. The fine material part is entrained by the screening gas sent in by the air supply device 102, so that the fine material is sent to the negative pressure device 103, and the coarse material part falls to the bottom of the powder selection body 101 under its own gravity, thereby completing the screening. The first breaking up plate 104 is set at an angle deviating from the horizontal line to improve the ability to break up the material.

[0039] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A powder selection device for screening particles into at least a fine material portion and a coarse material portion, characterized in that: The powder selection equipment comprises a powder selection body, an air supply device and a negative pressure device, the powder selection body is connected to the air supply device and the negative pressure device, the air supply device is arranged on the side wall of the powder selection body, the air supply device is used to transport screening gas into the powder selection body, and the negative pressure device is used to extract the screening gas carrying fine materials; A plurality of first scattering plates are installed in the powder selection body. The first scattering plates are arranged in a stepped manner at an angle α deviating from the horizontal line. The first scattering plates are used to scatter particles falling into the powder selection body.

2. The powder selection device according to claim 1, characterized in that: The powder selection body is provided with a discharge port and a feed port, the feed port is arranged opposite to the discharge port, the powder selection body is also provided with a suction port, the suction port is adapted to the aforementioned negative pressure device, and at least one air flow inlet is also provided on both sides of the powder selection body.

3. The powder selection device according to claim 2, characterized in that: A second scattering plate is also provided in the powder selection body, and the second scattering plate is arranged opposite to the first scattering plate.

4. The powder selection device according to claim 3, characterized in that: A flow dividing guide plate is also provided in the powder selection body. The flow dividing guide plate is arranged in the middle of the feed port and is installed at an angle β deviating from the horizontal line.

5. The powder selection device according to claim 4, characterized in that: The negative pressure device includes an air outlet pipe, which is connected to the suction port. One end of the air outlet pipe connected to the suction port is a U-shaped structure, and the other end of the air outlet pipe is externally connected to a cyclone. The air outlet pipe is used to extract the screened fine material out of the powder selection body.

Images