Crushing and screening device

Abstract

The invention provides a crushing and screening device which comprises a vibration base, a body part, a screening part, a weight sensor and a control system, and the vibration base comprises a power output part; the body part is arranged on the vibration base and provided with a screening cavity, a material inlet communicating with the top of the screening cavity and a plurality of material outlets. The multiple screening parts are distributed in the screening cavity at intervals in the height direction of the body part, screening holes are formed in each screening part, and the hole diameters of the screening holes in the multiple screening parts are gradually reduced from top to bottom. A weight sensor is arranged at the bottom of each screening part and used for detecting the weight of materials on the corresponding screening part. The control system controls the vibration frequency of the vibration base according to data detected by the weight sensor. The coal gasification coarse slag can be screened only through one crushing and screening device, multiple devices of different specifications are not needed, the screening efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing and screening devices, and in particular to a crushing and screening device. Background Art

[0002] Coal gasification is a chemical process that converts solid fuels such as coal into synthesis gas (mainly composed of carbon monoxide and hydrogen) under high temperature and oxygen-deficient conditions. This conversion process is widely used in many fields such as coal chemical industry and energy production, and is one of the important technologies for clean utilization and conversion of coal. During the coal gasification process, the raw coal is crushed and fed into the gasifier, where it reacts with gasifying agents such as oxygen or steam to generate synthesis gas. During the reaction, minerals, ash and other refractory residues in the coal will form molten or semi-molten ash slag. As the gasifier runs, these ash slags cool down and become coarse coal gasification slag.

[0003] Coal gasification slag has been proven to be used to replace part of natural sand in the preparation of concrete and mortar due to its unique physical and chemical properties. However, there are significant differences in particle size distribution and gradation between coal gasification slag and natural sand, which has a direct impact on the performance of concrete and mortar.

[0004] During the construction process, it is necessary to use crushing devices and screening devices to classify the particle size of the gasification coarse slag and adjust the particle size distribution of the gasification coarse slag to meet the specific needs of different engineering projects. Usually, the coal gasification coarse slag is initially crushed by a crushing device, and the crushed small particles are subjected to a series of screening treatments by screening devices of different specifications to achieve the particle size classification of the coal gasification coarse slag. However, the screening efficiency is low when the coal gasification coarse slag is subjected to a series of screening treatments by screening devices of different specifications. Summary of the invention

[0005] The present invention provides a crushing and screening device to solve the problem in the prior art that a series of screening processes are performed on the coal gasification coarse slag by screening devices of different specifications, and the screening efficiency is low.

[0006] The present invention provides a crushing and screening device, which comprises: a vibration base, including a power output member; a main body, which is arranged on the vibration base, the main body having a screening cavity and a material inlet connected to the top of the screening cavity, and a plurality of material outlets are also arranged on the main body, and the plurality of material outlets are arranged on the side wall of the main body at intervals along the height direction; a screening part, which is provided with a plurality of screening parts, and the plurality of screening parts are distributed in the screening cavity at intervals along the height direction of the main body, each screening part is provided with screening holes, the apertures of the screening holes on the plurality of screening parts gradually decrease from top to bottom, the material outlets are arranged corresponding to the screening parts, and the material outlets are located above the corresponding screening parts, so that the materials on the screening parts are discharged from the main body through the corresponding material outlets; a weight sensor, a weight sensor is respectively arranged at the bottom of each screening part, and the weight sensor is used to detect the weight of the materials on the corresponding screening part; a control system, which is electrically connected to the weight sensor and the power output member respectively, and the control system controls the vibration frequency of the vibration base according to the data detected by the weight sensor.

[0007] Furthermore, the crushing and screening device further comprises: a water washing component having a first water outlet, the first water outlet being arranged in the screening cavity and being located above at least one screening part, and the water washing component sprays water into the screening cavity through the first water outlet. In the embodiment of the present scheme, the water washing component sprays water into the screening cavity through the first water outlet, and the water is sprayed from above the screening part, uniformly covering the material being screened on the screening part, washing the material, and can also effectively reduce the dust phenomenon in the process of treating the coarse slag particles of coal gasification, thereby reducing the pollution to the working environment and the surrounding environment.

[0008] Furthermore, a first opening is also provided on the side wall of the main body, and a plurality of first openings are provided, and the plurality of first openings are spaced apart along the height direction of the main body, and the first opening is provided corresponding to the screening part, and the first opening is located above the corresponding screening part, and the water washing assembly includes: a first water outlet pipe, having a first water outlet, and a first water outlet pipe is installed at each first opening, and the first water outlet pipe is located above the corresponding screening part. It can be understood that in order to reduce the influence of the gasification coarse slag particles on the first water outlet pipe, the end of the first water outlet pipe can be embedded in the first opening.

[0009] Furthermore, the crushing and screening device further comprises: a first flow regulating member, and each first water outlet pipe is provided with a first flow regulating member. With such a configuration, the water output of each first water outlet pipe can be accurately controlled according to the actual needs of each layer of the screening part, so that each layer of materials can be fully cleaned while saving the use of water resources and costs, and vibration and water washing are performed simultaneously, which can improve the screening and cleaning efficiency and the screening and cleaning effect.

[0010] Furthermore, the control system is electrically connected to the first flow regulating member to control the opening of the first flow regulating member. With this arrangement, the weight of the material on each screening part can be monitored in real time through the weight sensor, and the control system automatically controls the water output of each first water outlet pipe by adjusting the first flow regulating member on the corresponding first water outlet pipe according to the weight change, thereby improving the automation of the crushing and screening device.

[0011] Furthermore, the washing assembly further comprises: a main water pipe, and the ends of the plurality of first water outlet pipes away from the first water outlet are respectively connected to the main water pipe; and a water pump is arranged on the main water pipe. Specifically, the water pump draws water from a water source and pressurizes the water, and sends the water into the main water pipe, and the main water pipe can send the water flow to the plurality of first water outlet pipes connected thereto, and each first water outlet pipe sprays water into the screening chamber through its first water outlet.

[0012] Furthermore, the crushing and screening device also includes: a crushing assembly, which is arranged in the screening chamber and located above the uppermost screening part, and the crushing assembly is used to crush the material entering the screening chamber. After passing through the material inlet, the material will first be crushed by the crushing assembly, which can be a double-roll crusher, and a crushing channel is formed between the two crushing rollers of the double-roll crusher. The coarse coal gasification slag particles with a smaller particle size that meet the requirements will directly pass through the crushing channel of the double-roll crusher, and the coarse coal gasification slag particles with a larger particle size will be crushed and ground by the double-roll crusher until the particle size meets the requirements, and then fall into the screening part below for processing.

[0013] Furthermore, the water washing component also has a second water outlet, and the crushing and screening device also includes: a feed hopper, which is arranged at the material inlet and is connected to the material inlet; the second water outlet is connected to the internal space of the feed hopper, and the water washing component sprays water into the feed hopper through the second water outlet. Before the material enters the screening chamber through the feed hopper, the water washing component sprays water into the feed hopper through the second water outlet to pre-wet the gasification coarse slag that is about to enter the screening device. The pre-wetted material is easier to crush when passing through the crushing component, which helps to optimize the crushing effect, reduce the possibility of jamming of the crushing component, and reduce dust during the crushing process.

[0014] Furthermore, the screening part is detachably connected to the main body. This arrangement allows each screening part to be easily removed from the main body for maintenance and cleaning, and each screening part is independently installed and disassembled, which improves the convenience of operation, and timely cleans the screen of the screening part to prevent clogging by debris, thereby improving the screening efficiency and effect.

[0015] Furthermore, a mounting opening is provided on the side wall of the main body, and a plurality of mounting openings are provided, and the plurality of mounting openings are spaced apart along the height direction of the main body, and the mounting openings are provided corresponding to the screening part, and the screening part extends into or out of the main body through the mounting openings, and the crushing and screening device comprises: a supporting structure, which is provided in the main body, and the screening part is overlapped on the supporting structure; and a locking structure, which is provided between the screening part and the main body, and the screening part is locked with the main body through the locking structure to limit the relative position between the screening part and the main body. With such a configuration, the structure is simple, and the operation is more convenient.

[0016] By applying the technical solution of the present invention, a multi-layer screening section with screening holes of different sizes is arranged from top to bottom, so that the particle size classification of the gasification coarse slag can be accurately controlled, and the gasification coarse slag in various particle size ranges can be screened out, so that the screening process of the gasification coarse slag can be achieved by only one crushing and screening device, without the need for multiple devices of different specifications, thereby improving the screening efficiency and reducing the production cost.

[0017] The size of the screening holes set on each layer of the screening part gradually decreases from top to bottom, so that the gasification coarse slag particles can be screened step by step according to the particle size. The gasification coarse slag particles of different particle sizes will stay on the corresponding screening part, and the gasification coarse slag particles with smaller particle sizes will pass through the screening holes on the current screening part and fall into the next layer of screening part with smaller screening holes for the next screening. When the gasification coarse slag particles are crushed and screened, the gasification coarse slag enters the screening chamber through the material inlet and then falls into the first layer of screening part. With the vibration of the vibration base, the main body vibrates, causing the material to vibrate on the first layer of screening part. The gasification coarse slag particles with larger particle sizes cannot pass through the screening holes of the first layer of screening part, and the particles with smaller particle sizes will pass through the screening holes and fall into the next layer of screening part for further screening until their particle size meets the size of the screening holes of a certain layer. At the same time, the weight sensor at the bottom of each screening part monitors the weight of the material on the screening part in real time. When there is too much material on a certain screening level, the weight sensor detects the weight increase, and the control system adjusts the vibration frequency of the vibration base according to the data to increase the screening efficiency. After the screening is completed, the coarse coal gasification slag particles of different particle sizes in each layer can be collected through each material outlet for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 The schematic diagram of the structure of the crushing and screening device provided by the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Vibration base;

[0022] 20. Ontology part;

[0023] 201, screening chamber; 202, material inlet; 203, material outlet; 204, first opening; 205, installation port;

[0024] 30. Screening section;

[0025] 40. Weight sensor;

[0026] 50. Water washing component; 501. First water outlet; 502. Second water outlet;

[0027] 51. First water outlet pipe; 52. Main water pipe; 53. Water pump;

[0028] 60. A first flow regulating member;

[0029] 70. Broken components;

[0030] 80. Feed hopper. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0032] like Figure 1As shown, the present invention provides a crushing and screening device, which includes a vibration base 10, a main body 20, a screening part 30, a weight sensor 40 and a control system, wherein the vibration base 10 includes a power output member; the main body 20 is arranged on the vibration base 10, and the main body 20 has a screening cavity 201 and a material inlet 202 connected to the top of the screening cavity 201, and the main body 20 is also provided with a plurality of material outlets 203, and the plurality of material outlets 203 are arranged on the side wall of the main body 20 at intervals along the height direction; the screening part 30 is provided with a plurality of screening parts 30, and the plurality of screening parts 30 are distributed in the screening cavity 201 at intervals along the height direction of the main body 20, and each screening part The body 20 is provided with screening holes on the plurality of screening parts 30, and the apertures of the screening holes on the plurality of screening parts 30 gradually decrease from top to bottom. The material outlet 203 is provided corresponding to the screening part 30, and the material outlet 203 is located above the corresponding screening part 30, so that the material on the screening part 30 can be discharged from the body 20 through the corresponding material outlet 203; a weight sensor 40 is respectively provided at the bottom of each screening part 30, and the weight sensor 40 is used to detect the weight of the material on the corresponding screening part 30; the control system is respectively electrically connected to the weight sensor 40 and the power output member, and the control system controls the vibration frequency of the vibration base 10 according to the data detected by the weight sensor 40.

[0033] By applying the technical solution of the present invention, a multi-layer screening section 30 with screening holes of different sizes is arranged from top to bottom, so that the particle size classification of the gasification coarse slag can be accurately controlled, and the gasification coarse slag in various particle size ranges can be screened out, so that the grading and screening of the gasification coarse slag can be achieved by only one crushing and screening device, without the need for multiple devices of different specifications, thereby improving the screening efficiency and reducing the production cost.

[0034] In the embodiment of the present scheme, the size of the screening holes arranged on each layer of the screening part 30 gradually decreases from top to bottom, so that the gasification coarse slag particles can be screened step by step according to the particle size, and the gasification coarse slag particles of different particle sizes will stay on the corresponding screening part 30, and the gasification coarse slag particles of smaller particle size will pass through the screening holes on the current layer of the screening part 30 and fall into the next layer of the screening part 30 with smaller screening holes for the next screening step.

[0035] Specifically, when the coarse slag particles of coal gasification are crushed and screened, the coarse slag of coal gasification enters the screening chamber 201 through the material inlet 202, and then falls into the first screening part 30. As the vibration base 10 vibrates, the main body 20 vibrates, so that the material vibrates on the first screening part 30. The coarse slag particles of coal gasification with larger particle sizes cannot pass through the screening holes of the first screening part 30, and the particles of smaller particle sizes will pass through the screening holes and fall into the next screening part 30 for further screening until their particle sizes meet the size of the screening holes of a certain layer. At the same time, the weight sensor 40 at the bottom of each screening part 30 monitors the weight of the material on the screening part in real time. When there is too much material on a certain level of the screening part, the weight sensor detects an increase in weight, and the control system adjusts the vibration frequency of the vibration base 10 according to the data to increase the screening efficiency. After the screening is completed, the coarse slag particles of different particle sizes in each layer can be collected through each material outlet 203 for subsequent processing.

[0036] In this solution, different numbers of screening parts 30 can be provided according to requirements. Among them, the screening parts 30 can be provided with two, three or four, etc.

[0037] In one embodiment of the present scheme, five screening sections 30 are provided. From top to bottom, the aperture ranges of the five screening sections 30 are respectively set in the following ranges: 4.75mm-2.36mm, 2.35mm-1.18mm, 1.17mm-601μm, 600μm-301μm, 300μm-150μm. The above setting ensures that after the screening is completed, the gasification coarse slag particles of different particle sizes are located on each layer of the screening section 30 with the set corresponding particle size range.

[0038] In this solution, the weight sensor 40 can monitor the weight of the material on each screening section in real time, and the control system adjusts the vibration frequency of the vibration base 10 according to the detected weight. This automatic adjustment mechanism can automatically adjust the vibration base 10 to the most suitable vibration frequency without manual adjustment, thereby improving the screening efficiency and operational convenience of the device.

[0039] In the embodiment of the present scheme, a corresponding material outlet 203 is opened above each layer of the screening part 30, and the two adjacent material outlets 203 in the height direction are respectively arranged on two non-adjacent walls of the main body 20. Such an arrangement helps to provide a larger operating space when the material is discharged through the material outlet 203, making the operation more convenient, and also reduces the concentrated load on a certain side wall.

[0040] Furthermore, the crushing and screening device also includes a water washing component 50, which has a first water outlet 501. The first water outlet 501 is arranged in the screening chamber 201 and is located above at least one screening part 30. The water washing component 50 sprays water into the screening chamber 201 through the first water outlet 501.

[0041] In an embodiment of the present scheme, the water washing component 50 sprays water into the screening chamber 201 through the first water outlet 501. The water is sprayed from above the screening part 30 and evenly covers the material being screened on the screening part 30 to clean the material. It can also effectively reduce the dust phenomenon during the treatment of gasification coarse slag particles and reduce the pollution to the working environment and the surrounding environment.

[0042] In the embodiment of the present scheme, acid or alkali may be added to water to clean the coal gasification coarse slag particles according to the change of application conditions of the coal gasification coarse slag particles, so as to improve the cleaning effect.

[0043] In the embodiment of the present solution, a plurality of first water outlets 501 are provided, and a corresponding first water outlet 501 is provided above each layer of the screening part 30 , so that the materials on each layer of the screening part 30 can be fully cleaned.

[0044] Furthermore, a first opening 204 is provided on the side wall of the main body 20, and a plurality of first openings 204 are provided. The plurality of first openings 204 are spaced apart along the height direction of the main body 20, and the first openings 204 are provided corresponding to the screening portion 30, and the first openings 204 are located above the corresponding screening portion 30. The water washing assembly 50 includes a first water outlet pipe 51 having a first water outlet port 501, and a first water outlet pipe 51 is installed at each first opening 204, and the first water outlet pipe 51 is located above the corresponding screening portion 30.

[0045] In the embodiment of the present scheme, the screening part 30 includes a baffle part and a screen part, the screening holes are arranged on the screen part, and except for the screening part 30 located at the top, the first water outlet pipe 51 is arranged correspondingly below the baffle part of each of the other screening parts 30. In this arrangement, each screening part 30 will not have a screening hole at the position corresponding to the first water outlet pipe 51 directly below it, so as to prevent the gasification coarse slag particles from falling from the screening hole there to the corresponding first water outlet pipe 51 below, thereby damaging the first water outlet pipe 51.

[0046] For the screening part 30 located at the top, there are multiple first openings 204 above it, and the multiple first openings 204 are circumferentially spaced on the side wall of the main body 20, and each first opening 204 is penetrated by a first water outlet pipe 51. It can be understood that in order to reduce the impact of gasification coarse slag particles on the first water outlet pipe 51, the end of the first water outlet pipe 51 can be embedded in the first opening 204.

[0047] Furthermore, the crushing and screening device further includes a first flow regulating member 60, and each first water outlet pipe 51 is respectively provided with a first flow regulating member 60. With such a configuration, the water output of each first water outlet pipe 51 can be accurately controlled according to the actual needs of each layer of the screening part 30, so that each layer of materials can be fully cleaned while saving water resources and costs, and vibration and water washing are performed simultaneously, which can improve the screening and cleaning efficiency and the screening and cleaning effect.

[0048] In the embodiment of this scheme, the sewage after washing can be discharged through the material outlet 203, and the sewage is connected to the water recovery system. The recovered water can be used for equipment washing again after being treated, thereby reducing the consumption of water resources.

[0049] Furthermore, the control system is electrically connected to the first flow regulating member 60 to control the opening of the first flow regulating member 60. With such an arrangement, the weight of the material on each screening part 30 can be monitored in real time through the weight sensor 40, and the control system automatically controls the water output of each first water outlet pipe 51 by adjusting the first flow regulating member 60 on the corresponding first water outlet pipe 51 according to the weight change, thereby improving the automation of the crushing and screening device.

[0050] Furthermore, the washing assembly 50 also includes a main water pipe 52 and a water pump 53 , and the ends of the plurality of first water outlet pipes 51 away from the first water outlet 501 are respectively connected to the main water pipe 52 ; the water pump 53 is arranged on the main water pipe 52 .

[0051] Specifically, the water pump 53 draws water from a water source and pressurizes the water, and sends the water into the main water pipe 52. The main water pipe 52 can transport the water flow to multiple first water outlet pipes 51 connected to it. Each first water outlet pipe 51 sprays water into the screening chamber 201 through its first water outlet 501.

[0052] In the embodiment of the present scheme, after the control system receives the material weight information of each layer of the screening part 30 transmitted by the weight sensor 40, it can control the power of the water pump 53 in real time as needed and adjust the water volume of the main water pipe 52.

[0053] Furthermore, the crushing and screening device further includes a crushing assembly 70 , which is disposed in the screening chamber 201 and located above the uppermost screening portion 30 , and is used to crush the material entering into the screening chamber 201 .

[0054] In the embodiment of the present scheme, after the material passes through the material inlet 202, it will first be crushed by the crushing component 70. The crushing component 70 can be a double-roll crusher. A crushing channel is formed between the two crushing rollers of the double-roll crusher. The coal gasification coarse slag particles with smaller particle sizes that meet the requirements will directly pass through the crushing channel of the double-roll crusher, and the coal gasification coarse slag particles with larger particle sizes will be crushed and ground by the double-roll crusher until their particle size meets the requirements, and then fall into the screening part 30 below for processing.

[0055] In the embodiment of the present solution, the distance between the two crushing rollers can be adjusted as needed to control the size of the particles passing through.

[0056] Furthermore, the water washing component 50 also has a second water outlet 502, and the crushing and screening device also includes a feed hopper 80, which is arranged at the material inlet 202, and the feed hopper 80 is connected to the material inlet 202; the second water outlet 502 is connected to the internal space of the feed hopper 80, and the water washing component 50 sprays water into the feed hopper 80 through the second water outlet 502.

[0057] In this solution, before the material enters the screening chamber 201 through the feed hopper 80, the water washing component 50 sprays water into the feed hopper 80 through the second water outlet 502 to pre-wet the gasification coarse slag that is about to enter the screening device. The pre-wetted material is easier to be crushed when passing through the crushing component 70, which helps to optimize the crushing effect, reduce the possibility of the crushing component 70 being blocked, and can also reduce dust during the crushing process.

[0058] Furthermore, the screening part 30 is detachably connected to the main body 20. With such a configuration, each screening part 30 can be conveniently removed from the main body 20 for maintenance and cleaning, and each screening part 30 can be independently installed and removed, which improves the convenience of operation, and timely cleans the screen of the screening part 30 to prevent clogging by debris, thereby improving the screening efficiency and effect.

[0059] In some embodiments of the present scheme, by replacing the screening part 30 with different apertures or materials, the crushing and screening device can be adapted to process materials of different types and particle size distributions, such as coal gasification slag, ore, building materials, etc., thereby improving the versatility and application range of the device.

[0060] Furthermore, an installation opening 205 is provided on the side wall of the main body 20, and a plurality of installation openings 205 are provided, and the plurality of installation openings 205 are spaced apart along the height direction of the main body 20, and the installation opening 205 is provided corresponding to the screening part 30, and the screening part 30 extends into or out of the main body 20 through the installation opening 205. The crushing and screening device includes a supporting structure and a locking structure, and the supporting structure is arranged in the main body 20, and the screening part 30 is overlapped on the supporting structure; the locking structure is arranged between the screening part 30 and the main body 20, and the screening part 30 is locked with the main body 20 through the locking structure to limit the relative position between the screening part 30 and the main body 20.

[0061] In this solution, the shape of the installation opening 205 is rectangular, which is compatible with the screening part 30. Such a setting facilitates the accurate installation of the screening part 30, and when the screening part 30 needs to be installed or removed, there is no need to completely disassemble the device. The screening part 30 can be inserted into or removed from the main body 20 through the corresponding installation opening 205, which greatly shortens the time for maintenance and replacement of the screening part and improves production efficiency. The support structure provides a stable support point for the screening part 30, and the locking structure effectively limits the relative displacement between the screening part 30 and the main body 20. The support structure and the locking structure improve the stability of the screening part 30 during the vibration screening process, reduce the phenomenon of excessive displacement of the screening part 30 due to vibration, and improve the reliability of the crushing and screening device.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0064] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crushing and screening device, characterized in that: include: A vibration base (10) including a power output member; A main body (20) is arranged on the vibration base (10), the main body (20) having a screening chamber (201) and a material inlet (202) connected to the top of the screening chamber (201), and the main body (20) is also provided with a plurality of material outlets (203), the plurality of material outlets (203) being arranged at intervals along the height direction on the side wall of the main body (20); A plurality of screening parts (30) are provided, and the plurality of screening parts (30) are spaced apart and distributed in the screening cavity (201) along the height direction of the main body (20); each screening part (30) is provided with a screening hole, and the apertures of the screening holes on the plurality of screening parts (30) gradually decrease from top to bottom; the material outlet (203) is provided corresponding to the screening part (30), and the material outlet (203) is located above the corresponding screening part (30), so that the material on the screening part (30) is discharged from the main body (20) through the corresponding material outlet (203); A weight sensor (40), wherein a weight sensor (40) is disposed at the bottom of each screening portion (30), and the weight sensor (40) is used to detect the weight of the material on the corresponding screening portion (30); A control system is electrically connected to the weight sensor (40) and the power output component, respectively, and the control system controls the vibration frequency of the vibration base (10) according to data detected by the weight sensor (40).

2. The crushing and screening device according to claim 1, characterized in that: The crushing and screening device also includes: The water washing component (50) has a first water outlet (501), wherein the first water outlet (501) is arranged in the screening cavity (201) and is located above at least one of the screening parts (30), and the water washing component (50) sprays water into the screening cavity (201) through the first water outlet (501).

3. The crushing and screening device according to claim 2, characterized in that: A first opening (204) is further provided on the side wall of the main body (20), a plurality of the first openings (204) are provided, and the plurality of the first openings (204) are spaced apart along the height direction of the main body (20), the first openings (204) are provided corresponding to the screening part (30), and the first openings (204) are located above the corresponding screening part (30), and the water washing assembly (50) comprises: The first water outlet pipe (51) has the first water outlet (501), and one first water outlet pipe (51) is installed at each first opening (204). The first water outlet pipe (51) is located above the corresponding screening part (30).

4. The crushing and screening device according to claim 3, characterized in that: The crushing and screening device also includes: A first flow regulating member (60), each of the first water outlet pipes (51) is provided with a first flow regulating member (60).

5. The crushing and screening device according to claim 4, characterized in that: The control system is electrically connected to the first flow regulating member (60) to control the opening degree of the first flow regulating member (60).

6. The crushing and screening device according to claim 3, characterized in that: The water washing assembly (50) further comprises: A main water pipe (52), wherein ends of the plurality of first water outlet pipes (51) away from the first water outlet (501) are respectively connected to the main water pipe (52); A water pump (53) is arranged on the main water pipe (52).

7. The crushing and screening device according to claim 2, characterized in that: The crushing and screening device also includes: A crushing assembly (70) is arranged in the screening chamber (201) and is located above the uppermost screening portion (30). The crushing assembly (70) is used to crush the material entering the screening chamber (201).

8. The crushing and screening device according to claim 7, characterized in that: The water washing assembly (50) further comprises a second water outlet (502), and the crushing and screening device further comprises: The feed hopper (80) is arranged at the material inlet (202), and the feed hopper (80) is connected to the material inlet (202); the second water outlet (502) is connected to the internal space of the feed hopper (80), and the water washing component (50) sprays water into the feed hopper (80) through the second water outlet (502).

9. The crushing and screening device according to claim 1, characterized in that: The screening part (30) is detachably connected to the main body part (20).

10. The crushing and screening device according to claim 9, characterized in that: The side wall of the main body (20) is provided with a mounting opening (205), a plurality of the mounting openings (205) are provided, and the plurality of the mounting openings (205) are spaced apart along the height direction of the main body (20), the mounting openings (205) are arranged corresponding to the screening part (30), and the screening part (30) extends into or out of the main body (20) through the mounting openings (205), and the crushing and screening device comprises: A support structure is arranged in the main body (20), and the screening part (30) is overlapped on the support structure; A locking structure is arranged between the screening part (30) and the main body (20); the screening part (30) is locked with the main body (20) through the locking structure to limit the relative position between the screening part (30) and the main body (20).

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