Novel aggregate screening and discharging device

Abstract

A novel aggregate screening and discharging device comprises lifting conveying belts, screening machines and a discharging conveying belt, the screening machines are divided into an upper screening machine set and a lower screening machine set, each screening machine set comprises three screening machines arranged side by side, a feeding port of the upper screening machine set is connected with a discharging port of the corresponding lifting conveying belt, and a discharging port of the discharging conveying belt is connected with a discharging port of the corresponding discharging conveying belt. Each screening machine comprises a screening mechanism and a vibrating mechanism, each screening mechanism comprises a screen outer frame, a screen assembly, a side discharging cavity and a bottom discharging cavity, the screen assemblies are installed in the screen outer frames, and the screen outer frames and the screen assemblies are driven by the vibrating mechanisms to vibrate synchronously; the side discharging cavity of the lowermost layer of the upper screening machine is connected with the feeding channel of the lower screening machine, the side discharging cavities of the other screening machines are each connected with a discharging conveying belt, and the bottom discharging cavity of each screening machine is connected with an unpowered powder selecting device. The device has the advantages of being high in working efficiency, wide in application range and good in product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of aggregate production, in particular to a novel aggregate screening and discharging device. Background Art

[0002] In the production process of building aggregates, the aggregates processed by the shaping sand making workshop need to be transported to the screening workshop for processing, and then transported to the finished product warehouse for storage and use. In the prior art, the screening and discharging device has the problems of simple layout and single function. It is necessary to improve its layout and structural design to better meet production needs. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a novel aggregate screening and discharging device with high working efficiency, wide application and good product quality.

[0004] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0005] A novel aggregate screening and discharging device comprises a lifting conveyor belt, a screening machine and a discharging conveyor belt, wherein the screening machine is divided into an upper group of screening machines and a lower group of screening machines, wherein the upper group of screening machines comprises a first screening machine, a second screening machine and a third screening machine arranged in parallel on a screening machine mounting frame, and the lower group of screening machines comprises a fourth screening machine, a fifth screening machine and a sixth screening machine arranged in parallel on the screening machine mounting frame, and a feeding port of the upper group of screening machines is connected to a discharging port of the corresponding lifting conveyor belt;

[0006] Each screening machine includes a screening mechanism and a vibration mechanism, both of which are arranged on a screening machine mounting frame, the screening mechanism includes a screen frame, a screen assembly, a side discharge cavity and a bottom discharge cavity, the side discharge cavity is installed on the discharge side of the screen assembly, the bottom discharge cavity is installed below the screen assembly, the screen assembly is installed in the screen frame, and the screen frame and the screen assembly are driven by the vibration mechanism to realize the vibration screening operation of the aggregate;

[0007] The side discharge cavity of the upper group of screening machines is divided into multiple layers of side discharge cavity arranged up and down, the number of layers of the side discharge cavity is consistent with the number of screens in the screen assembly of the upper group of screening machines, the lowest layer of the side discharge cavity of the upper group of screening machines is correspondingly connected to the feed channel of the lower group of screening machines through a guide channel, the side discharge cavities of the upper group of screening machines except the lowest layer are each connected to a discharge conveyor belt, the outlet of the bottom discharge cavity of the upper group of screening machines is connected to the unpowered powder selection device through the same discharge conveyor belt, and the discharge port of the unpowered powder selection device is connected to a discharge conveyor belt;

[0008] The side discharge cavity of the lower group of screening machines is divided into multiple layers of side discharge cavity arranged upper and lower. The number of layers of the side discharge cavity is consistent with the number of screens in the screen assembly of the lower group of screening machines. Each layer of the side discharge cavity of the lower group of screening machines is respectively connected to a discharge conveyor belt, and the outlet of the bottom discharge cavity of the lower group of screening machines is connected to the unpowered powder selection device.

[0009] Preferably, the upper group of screening machines and the lower group of screening machines are symmetrically inclined on the middle horizontal plane of the screening machine mounting frame.

[0010] Preferably, the number of the lifting conveyor belts is three and they are divided into a first lifting conveyor belt, a second lifting conveyor belt and a third lifting conveyor belt, and the discharge ports of the three lifting conveyor belts are correspondingly connected to the feed channels of the three screening machines located above through guide channels.

[0011] Preferably, the outer side of the screen mesh outer frame is obliquely mounted on the screening machine mounting frame through an elastic support shock absorbing device.

[0012] Preferably, the screen assembly of each screening machine includes a top outer cover, an upper screen, a middle screen and a lower screen which are arranged on the screen outer frame from top to bottom, the top outer cover is provided with a feed channel, and the discharge ends of the three-layer screen are respectively provided with an upper discharge cavity, a middle discharge cavity and a lower discharge cavity from top to bottom, the upper discharge cavity, the middle discharge cavity and the lower discharge cavity constitute three layers of side discharge cavities, and a non-powered powder selection device is provided below the bottom discharge cavity of the lower group of screening machines.

[0013] Preferably, a dust suction channel is provided in the middle of the top outer cover, and the dust suction channel is connected to the dust removal system through a pipeline.

[0014] Preferably, the number of the discharging conveyor belts is eight and they are divided into the first discharging conveyor belt, the second discharging conveyor belt and the third discharging conveyor belt for the upper group of screening machines and the fourth discharging conveyor belt, the fifth discharging conveyor belt, the sixth discharging conveyor belt, the seventh discharging conveyor belt and the powder selection device discharging conveyor belt for the lower group of screening machines. The upper discharging cavity and the middle discharging cavity of the upper group of screening machines are respectively connected to the first discharging conveyor belt and the second discharging conveyor belt through the discharging channel, the bottom discharging cavity outlet of the upper group of screening machines is connected to the third discharging conveyor belt, the third discharging conveyor belt is connected to the unpowered powder selection device, and the discharging port of the unpowered powder selection device is connected to the discharging conveyor belt of the powder selection device;

[0015] The upper discharging chamber, middle discharging chamber and lower discharging chamber of a group of screening machines below are respectively connected to the fourth discharging conveyor belt, the sixth discharging conveyor belt and the seventh discharging conveyor belt through the discharging channel, or the upper discharging chamber and middle discharging chamber of a group of screening machines below are connected to the fifth discharging conveyor belt through the discharging channel, and at the same time, the lower discharging chamber of a group of screening machines below is connected to the seventh discharging conveyor belt through the discharging channel, and the outlet of the bottom discharging chamber of the group of screening machines below is connected to the unpowered powder selection device, and the discharge port of the unpowered powder selection device is connected to the discharging conveyor belt of the powder selection device. Except for the third discharging conveyor belt, the other discharging conveyor belts will transport the screened aggregates with different specifications to the finished product warehouse for storage and use.

[0016] Preferably, the vibration mechanism of the upper group of screening machines includes an upper screening machine vibration device installed in the middle of the screen outer frame, the upper screening machine vibration device includes a drive motor and a transmission mechanism, and the drive motor drives the transmission mechanism to realize the synchronous vibration screening operation of the screen outer frame and the screen assembly. The vibration mechanism of the lower group of screening machines includes a lower screening machine vibration device installed in the middle of the screen outer frame, the lower screening machine vibration device includes a drive motor and a transmission mechanism, and the drive motor drives the transmission mechanism to realize the synchronous vibration screening operation of the screen outer frame and the screen assembly.

[0017] Preferably, the screening machine is arranged in a closed workshop body, the discharge ports of the three lifting conveyor belts are located in the workshop body, and a mobile iron remover is horizontally installed on the workshop body on top of an upper group of screening machines.

[0018] Preferably, the third discharging conveyor belt is located in the workshop body, the feeding sections of other discharging conveyor belts except the third discharging conveyor belt are located in the workshop body, and the discharging sections of other discharging conveyor belts except the third discharging conveyor belt are located outside the workshop body.

[0019] Beneficial effects of the utility model:

[0020] 1. The inlet and outlet of the two sets of screening machines are connected to the shaping workshop and the finished product storage area respectively, with reasonable design, high working efficiency and good product quality;

[0021] 2. The structure of the inlet and outlet of the screening machine is optimized, which has the positive effects of convenient operation, energy saving, environmental protection, safety and reliability;

[0022] 3. It can be adaptively adjusted according to the specifications of the aggregate after screening, which is convenient for the storage and use of finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a right view of a novel aggregate screening and discharging device of the utility model;

[0024] Figure 2 This is a structural diagram of an upper screening machine of a novel aggregate screening and discharging device of the utility model;

[0025] Figure 3 This is a front view of a novel aggregate screening and discharging device of the utility model;

[0026] Figure 4 It is a top view of a novel aggregate screening and discharging device of the utility model;

[0027] In the figure: 1-workshop body, 2-lifting conveyor belt, 20-discharging port of lifting conveyor belt, 21-first lifting conveyor belt, 22-second lifting conveyor belt, 23-third lifting conveyor belt, 3-a group of upper screening machines, 30-screen frame, 301-upper screen, 302-middle screen, 303-lower screen, 304-upper screening machine vibration device, 305-elastic support shock absorbing device, 31-first screening machine, 32-second screening machine Extension machine, 33-third screening machine, 4-lower group of screening machines, 41-fourth screening machine, 42-fifth screening machine, 43-sixth screening machine, 5-first discharging conveyor belt, 6-second discharging conveyor belt, 7-third discharging conveyor belt, 8-powder selection device discharging conveyor belt, 9-fourth discharging conveyor belt, 10-fifth discharging conveyor belt, 11-sixth discharging conveyor belt, 12-seventh discharging conveyor belt, 13-screening machine mounting frame, 14-iron remover. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] like Figure 1-4 As shown, the utility model provides a novel aggregate screening and discharging device, including a lifting conveyor belt, a screening machine and a discharging conveyor belt, wherein the screening machine is divided into an upper group of screening machines 3 and a lower group of screening machines 4, wherein the upper group of screening machines 3 includes a first screening machine 31, a second screening machine 32 and a third screening machine 33 arranged in parallel on a screening machine mounting frame 13, and the lower group of screening machines 4 includes a fourth screening machine 41, a fifth screening machine 42 and a sixth screening machine 43 arranged in parallel on the screening machine mounting frame 13, wherein the lifting conveyor belt 2 is three in number and is divided into a first lifting conveyor belt 21, a second lifting conveyor belt 22 and a third lifting conveyor belt 23, and the discharging ports 20 of the three lifting conveyor belts are correspondingly connected to the feeding channels of the three screening machines located above through guide channels;

[0030] Each screening machine includes a screening mechanism and a vibration mechanism, both of which are arranged on a screening machine mounting frame 13, the screening mechanism includes a screen outer frame 30, a screen assembly, a side discharge cavity and a bottom discharge cavity, the side discharge cavity is installed on the discharge side of the screen assembly, the bottom discharge cavity is installed below the screen assembly, the outer side of the screen outer frame 30 is tiltedly installed on the screening machine mounting frame 13 through an elastic support shock absorbing device 305, the screen assembly is installed in the screen outer frame 30 and the screen outer frame 30 is driven by the vibration mechanism to continuously vibrate, thereby realizing the vibration screening operation of the screen assembly on the aggregate;

[0031] The side discharge cavity of the upper group of screening machines 3 is divided into multiple layers of side discharge cavity arranged up and down, the number of layers of the side discharge cavity is consistent with the number of screens in the screen assembly of the upper group of screening machines 3, the lowest layer of the side discharge cavity of the upper group of screening machines 3 is correspondingly connected to the feed channel of the lower group of screening machines 4 through a guide channel, and the side discharge cavities of the upper group of screening machines 3 except the lowest layer are each connected to a discharge conveyor belt, and the outlet of the bottom discharge cavity of the upper group of screening machines 3 is connected to the unpowered powder selection device through a discharge conveyor belt (the third discharge conveyor belt 7), and the discharge port of the unpowered powder selection device is connected to a discharge conveyor belt (the powder selection device discharge conveyor belt 8);

[0032] The side discharge cavity of the lower group of screening machines 4 is divided into multiple layers of side discharge cavity arranged upper and lower, the number of layers of the side discharge cavity is consistent with the number of screens in the screen assembly of the lower group of screening machines 4, each layer of the side discharge cavity of the lower group of screening machines 4 is respectively connected to a discharge conveyor belt, and the outlet of the bottom discharge cavity of the lower group of screening machines 4 is directly connected to the unpowered powder selection device.

[0033] Specifically, an upper group of screening machines 3 and a lower group of screening machines 4 are symmetrically inclined on the middle horizontal plane of the screening machine mounting frame 13, so that the discharge ports of the three screening machines of the upper group of screening machines 3 at the lowermost layer of the side discharge cavity are close to the upper feed channels of the three screening machines of the lower group of screening machines 4, which increases the conveying speed and saves energy consumption and use costs.

[0034] Specifically, the screen assembly of each screening machine includes a top outer cover, an upper screen 301, a middle screen 302, and a lower screen 303 arranged on the screen outer frame 30 from top to bottom, the top outer cover is provided with a feed channel, the middle part of the top outer cover is provided with a dust suction channel, and the dust suction channel is connected to the dust removal system through a pipeline, and the discharge end of the three-layer screen material is respectively provided with an upper discharge cavity, a middle discharge cavity and a lower discharge cavity from top to bottom, and a non-powered powder selection device is provided below the bottom discharge cavity of a group of screening machines 4 below.

[0035] Specifically, there are eight discharging conveyor belts, which are divided into a first discharging conveyor belt 5, a second discharging conveyor belt 6, and a third discharging conveyor belt 7 for an upper group of screening machines 3, and a fourth discharging conveyor belt 9, a fifth discharging conveyor belt 10, a sixth discharging conveyor belt 11, a seventh discharging conveyor belt 12 and a powder selection device discharging conveyor belt 8 for a lower group of screening machines 4. The upper discharging cavity and the middle discharging cavity of the upper group of screening machines 3 are respectively connected to the first discharging conveyor belt 5 and the second discharging conveyor belt 6 through the discharging channel, the bottom discharging cavity outlet of the upper group of screening machines 3 is connected to the third discharging conveyor belt 7, the third discharging conveyor belt 7 is connected to the unpowered powder selection device, and the discharging port of the unpowered powder selection device is connected to the discharging conveyor belt 8 of the powder selection device;

[0036] The upper discharging chamber, the middle discharging chamber and the lower discharging chamber of a group of screening machines 4 below are respectively connected to the fourth discharging conveyor belt 9, the sixth discharging conveyor belt 11 and the seventh discharging conveyor belt 12 through the discharging channel, or the upper discharging chamber and the middle discharging chamber of a group of screening machines 4 below are connected to the fifth discharging conveyor belt 10 through the discharging channel, and at the same time, the lower discharging chamber of a group of screening machines 4 below is connected to the seventh discharging conveyor belt 12 through the discharging channel, and the outlet of the bottom discharging chamber of a group of screening machines 4 below is connected to the unpowered powder selection device, and the discharge port of the unpowered powder selection device is connected to the discharging conveyor belt 8 of the powder selection device. Except for the third discharging conveyor belt 7, the other discharging conveyor belts will transport the aggregates with different specifications after screening to the finished product warehouse for storage and use.

[0037] Specifically, the vibration mechanism of the upper group of screening machines 3 includes an upper screening machine vibration device 304 installed in the middle of the screen outer frame 30, and the upper screening machine vibration device 304 includes a driving motor and a transmission mechanism. The driving motor drives the transmission mechanism to realize the vibration of the screen outer frame, thereby realizing the vibration screening operation of the screen assembly of the upper group of screening machines 3 on the aggregate. The vibration mechanism of the lower group of screening machines 4 includes a lower screening machine vibration device installed in the middle of the screen outer frame. The lower screening machine vibration device includes a driving motor and a transmission mechanism. The driving motor drives the transmission mechanism to realize the vibration of the screen outer frame, thereby realizing the vibration screening operation of the screen assembly of the lower group of screening machines 4 on the aggregate.

[0038] Specifically, the screening machine is arranged in a closed workshop body 1, the discharge ports 20 of the three lifting conveyor belts are located in the workshop body 1, and a mobile iron remover 14 is horizontally installed on the workshop body 1 at the top of the upper group of screening machines 3. Through the mobile iron remover 14, aggregates with high iron content can be adsorbed at the aggregate feed of the upper group of screening machines 3, thereby reducing the wear on processing and conveying equipment in continuous production and extending the service life of the equipment.

[0039] Specifically, the third unloading conveyor belt 7 is located in the workshop main body 1, the feeding section of other unloading conveyor belts except the third unloading conveyor belt 7 is located in the workshop main body 1, and the unloading section of other unloading conveyor belts except the third unloading conveyor belt 7 is located outside the workshop main body 1. Due to the closed structure of the workshop main body 1, dust is avoided in the feeding process and the air quality is improved.

[0040] It should be noted that the above embodiments are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. All equivalent modifications made on the basis of the above embodiments fall within the protection scope of the present invention.

Claims

1. A novel aggregate screening and discharging device, comprising a lifting conveyor belt, a screening machine and a discharging conveyor belt, characterized in that: The screening machine is divided into an upper group of screening machines and a lower group of screening machines, the upper group of screening machines includes a first screening machine, a second screening machine and a third screening machine arranged in parallel on a screening machine mounting frame, and the lower group of screening machines includes a fourth screening machine, a fifth screening machine and a sixth screening machine arranged in parallel on the screening machine mounting frame, and the feed port of the upper group of screening machines is connected to the discharge port of the corresponding lifting conveyor belt; Each screening machine includes a screening mechanism and a vibration mechanism, both of which are arranged on a screening machine mounting frame, the screening mechanism includes a screen frame, a screen assembly, a side discharge cavity and a bottom discharge cavity, the side discharge cavity is installed on the discharge side of the screen assembly, the bottom discharge cavity is installed below the screen assembly, the screen assembly is installed in the screen frame, and the screen frame and the screen assembly are driven by the vibration mechanism to realize the vibration screening operation of the aggregate; The side discharge cavity of the upper group of screening machines is divided into multiple layers of side discharge cavity arranged up and down, the side discharge cavity of the lowest layer of the upper group of screening machines is correspondingly connected to the feed channel of the lower group of screening machines through a guide channel, the side discharge cavities of other layers of the upper group of screening machines except the lowest layer are respectively connected to a discharge conveyor belt, the outlet of the bottom discharge cavity of the upper group of screening machines is connected to the unpowered powder selection device through the same discharge conveyor belt, and the discharge port of the unpowered powder selection device is connected to a discharge conveyor belt; the side discharge cavity of the lower group of screening machines is divided into multiple layers of side discharge cavity arranged up and down, each layer of the side discharge cavity of the lower group of screening machines is respectively connected to a discharge conveyor belt, and the outlet of the bottom discharge cavity of the lower group of screening machines is connected to the unpowered powder selection device.

2. A novel aggregate screening and discharging device according to claim 1, characterized in that: An upper group of screening machines and a lower group of screening machines are symmetrically and tiltedly arranged on a middle horizontal plane of a screening machine mounting frame.

3. The novel aggregate screening and discharging device according to claim 1 is characterized in that: There are three lifting conveyor belts, which are divided into a first lifting conveyor belt, a second lifting conveyor belt and a third lifting conveyor belt. The discharge ports of the three lifting conveyor belts are correspondingly connected to the feed channels of the three screening machines located above through guide channels.

4. The novel aggregate screening and discharging device according to claim 1 is characterized in that: The outer side of the screen mesh outer frame is obliquely mounted on the screening machine mounting frame through an elastic supporting shock absorbing device.

5. The novel aggregate screening and discharging device according to claim 1 is characterized in that: The screen assembly of each screening machine includes a top outer cover, an upper screen, a middle screen and a lower screen which are arranged on the screen outer frame from top to bottom. The top outer cover is provided with a feed channel, and the discharge end of the three-layer screen is respectively provided with an upper discharge cavity, a middle discharge cavity and a lower discharge cavity from top to bottom. A non-powered powder selection device is provided below the bottom discharge cavity of the lower group of screening machines.

6. A novel aggregate screening and discharging device according to claim 5, characterized in that: A dust suction channel is arranged in the middle of the top outer cover, and the dust suction channel is connected with the dust removal system through a pipeline.

7. The novel aggregate screening and discharging device according to claim 5 is characterized in that: There are eight discharging conveyor belts, which are divided into a first discharging conveyor belt, a second discharging conveyor belt, and a third discharging conveyor belt for an upper group of screening machines, and a fourth discharging conveyor belt, a fifth discharging conveyor belt, a sixth discharging conveyor belt, a seventh discharging conveyor belt and a powder selection device discharging conveyor belt for a lower group of screening machines. The upper discharging cavity and the middle discharging cavity of the upper group of screening machines are respectively connected to the first discharging conveyor belt and the second discharging conveyor belt through the discharging channel, the bottom discharging cavity outlet of the upper group of screening machines is connected to the third discharging conveyor belt, the third discharging conveyor belt is connected to the unpowered powder selection device, and the discharging port of the unpowered powder selection device is connected to the discharging conveyor belt of the powder selection device; The upper discharge cavity, middle discharge cavity and lower discharge cavity of a group of screening machines below are respectively connected to the fourth discharge conveyor belt, the sixth discharge conveyor belt and the seventh discharge conveyor belt through the discharge channel, or the upper discharge cavity and middle discharge cavity of a group of screening machines below are connected to the fifth discharge conveyor belt through the discharge channel, and at the same time, the lower discharge cavity of a group of screening machines below is connected to the seventh discharge conveyor belt through the discharge channel, and the outlet of the bottom discharge cavity of a group of screening machines below is connected to the unpowered powder selection device, and the discharge port of the unpowered powder selection device is connected to the discharge conveyor belt of the powder selection device.

8. The novel aggregate screening and discharging device according to claim 7 is characterized in that: The vibration mechanism of the upper group of screening machines includes an upper screening machine vibration device installed in the middle of the screen outer frame, and the vibration mechanism of the lower group of screening machines includes a lower screening machine vibration device installed in the middle of the screen outer frame. The upper screening machine vibration device and the lower screening machine vibration device both include a driving motor and a transmission mechanism.

9. A novel aggregate screening and discharging device according to claim 8, characterized in that: The screening machine is arranged in a closed workshop body, the discharge ports of three lifting conveyor belts are located in the workshop body, and a mobile iron remover is horizontally installed on the workshop body on the top of a group of screening machines above.

10. A novel aggregate screening and discharging device according to claim 9, characterized in that: The third discharging conveyor belt is located in the workshop body, the feeding sections of other discharging conveyor belts except the third discharging conveyor belt are located in the workshop body, and the discharging sections of other discharging conveyor belts except the third discharging conveyor belt are located outside the workshop body.

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