Equipment for preparing topsoil substitute materials

Abstract

The present invention provides a topsoil substitute material preparation device, the main points are: it is composed of a feeding device, a distribution device, and a mixing and stirring device connected in series from top to bottom, and installed on an equipment frame; the feeding device is composed of a feeding belt conveyor and a hopper in series; the distribution device is composed of a distribution belt conveyor and an electric rotating mechanism, the electric rotating mechanism is installed on the equipment frame, and the distribution belt conveyor is installed on the turntable of the electric rotating mechanism, so that the distribution belt conveyor can rotate with the turntable; the mixing and stirring device is composed of two mixing and stirring units arranged in parallel on the left and right; each unit is a compartment bin, a replaceable joint, a funnel-type mixing bin and a double-shaft mixer connected in series from top to bottom, a flat gate is respectively arranged at the outlet of the replaceable joint and the outlet of the funnel-type mixing bin, and the improver feeding device, that is, the air outlet of the blower faces the double-shaft mixer.

Description

Technical Field

[0001] The invention relates to a preparation device for a topsoil substitute material, in particular to a device for mixing and stirring four raw materials in proportion during the preparation process. Background Art

[0002] Open-pit mining is one of the main ways to develop and utilize coal. This mining method requires stripping all the topsoil and rock layers above the coal seam, which will cause damage to the surrounding ecological environment. At the same time, the stacking of mining strippings occupies a large amount of land. In order to solve the problem of missing topsoil during mine land reclamation, CN110934050A discloses a topsoil substitute material based on open-pit coal mine strippings and a preparation method thereof, specifically, the stripping material type, particle size range, ratio, and modifier type and amount required for preparing the topsoil substitute material. Summary of the invention

[0003] The purpose of the present invention is to provide a device for preparing a topsoil substitute material.

[0004] The object of the present invention is achieved in this way: it is composed of a feeding device, a material distribution device, and a mixing and stirring device connected in series from top to bottom and installed on the equipment frame;

[0005] The feeding device is composed of a feeding belt conveyor and a hopper in series;

[0006] The material distribution device consists of a material distribution belt conveyor and an electric rotary mechanism. The electric rotary mechanism is installed on the equipment frame, and the material distribution belt conveyor is installed on the rotary table of the electric rotary mechanism, so that the material distribution belt conveyor can rotate with the rotary table;

[0007] The mixing and stirring device is composed of two mixing and stirring units (i.e., the first and second units) arranged in parallel from left to right; each unit is a compartment bin, a replaceable joint, a funnel-type mixing bin and a double-shaft mixer connected in series from top to bottom, a flat gate is respectively arranged at the outlet of the replaceable joint and the outlet of the funnel-type mixing bin, and the improver feeding device, i.e., the air outlet of the blower, faces the double-shaft mixer; when the turntable rotates in the first half of the circle, the discharging end of the cloth belt conveyor faces the compartment bin feed inlet of one unit, and when it rotates in the second half of the circle, the discharging end of the cloth belt conveyor faces the compartment bin feed inlet of another unit. Bin feed port; the compartment bin is square funnel-shaped, and three partitions are arranged in sequence on the left and right of the funnel cavity, dividing the cavity into four small bins arranged on the left and right, so it is called a compartment bin; the replaceable joint is square tube-shaped, which is sleeved on the compartment bin outlet, and three flaps are arranged in sequence on the left and right in the square tube cavity, dividing the square tube cavity into four channels corresponding to the four small bins, and the upper end of each flap is hinged to the frame structure, and a plurality of leg positioning pits arranged on the left and right into which the legs can be inserted are arranged on the frame structure at the square tube outlet, and the upper ends of the legs are hinged to the lower half of the ground flap.

[0008] The series connection mentioned in this article refers to the connection between the discharge end of the first device and the feed end of the second device of two adjacent devices (equipment).

[0009] The working process is that when the turntable is in the front half of the circle, the discharging end of the material distribution belt conveyor faces the feed port of the compartment bin of one of the units (the first unit); the two flat gates are closed. There are four raw materials (mining strippings) and an improver for preparing topsoil substitute materials. The first raw material is first sent to the first small bin of the compartment bin by the feeding belt conveyor through the hopper and the material distribution belt conveyor of the first unit; then the second raw material is sent to the second small bin by the above method until the fourth raw material is sent to the fourth small bin. The quantity of the four raw materials is in accordance with the ratio disclosed in CN110934050A. Open the two flat gates, and the four raw materials simultaneously enter the funnel-type mixing bin through the replaceable joints for mixing, and then enter the double-shaft mixer. At the same time, turn on the blower to blow the fertilizer into the double-shaft mixer. After the four raw materials and the fertilizer are fully mixed, the double-shaft mixer outputs the topsoil substitute material.

[0010] After the first unit completes feeding, the unit enters the next operation procedure, and the material distribution device rotates to the second unit for material distribution operation, that is, when the turntable is in the second half of the circle, the material distribution belt conveyor discharge end faces the second unit's compartment bin feeding port. This can achieve continuous operation and improve efficiency.

[0011] Compared with the prior art, the present invention has the positive effect of significantly improving the efficiency of preparing topsoil substitute materials to meet the huge demand for topsoil substitute materials in my country. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the present invention.

[0014] Figure 2 yes Figure 1 Right view of .

[0015] Figure 3 yes Figure 2 Top view of the .

[0016] Figure 4 yes Figure 1 An enlarged view of the replaceable joint 42. DETAILED DESCRIPTION

[0017] See also Figure 1 It is composed of a feeding device 1, a material distribution device 2, and a mixing and stirring device 4 connected in series from top to bottom and installed on an equipment frame 3;

[0018] The feeding device 1 is composed of a feeding belt conveyor 11 and a hopper 12 in series;

[0019] The material distribution device 2 is composed of a material distribution belt conveyor 21 and an electric rotary mechanism 22. The electric rotary mechanism is installed on the equipment frame, and the material distribution belt conveyor is installed on the rotary table of the electric rotary mechanism 22, so that the material distribution belt conveyor can rotate with the rotary table;

[0020] The mixing and stirring device 4 is composed of a first and a second mixing and stirring unit arranged side by side (see Figure 2 ); Each unit is a compartment 41, a replaceable joint 42, a funnel-type mixing chamber 43 and a double-shaft mixer 44 connected in series from top to bottom, a flat gate 47 is respectively provided at the outlet of the replaceable joint and the outlet of the funnel-type mixing chamber, and the air outlet of the improver feeding device, i.e., the blower 45, faces the double-shaft mixer 44; when the turntable rotates in the first half of the circle, the discharging end of the cloth belt conveyor faces the feeding port of the compartment of one unit, and when the turntable rotates in the second half of the circle, the discharging end of the cloth belt conveyor faces the feeding port of the compartment of another unit; the compartment is in a square funnel shape, The funnel cavity is provided with three partitions 46 in sequence from left to right, dividing the cavity into four small bins 48 arranged from left to right, so it is called a compartment bin; the replaceable joint is in the shape of a square tube, which is sleeved on the outlet of the compartment bin, and three flaps 422 are arranged from left to right in the square tube cavity, dividing the square tube cavity into four channels 425 corresponding to the four small bins, and the upper end of each flap is hinged 421 on the frame 3 structure, and a plurality of leg positioning pits 423 arranged from left to right are provided on the frame structure at the outlet of the square tube, into which the legs can be inserted, and the upper end of the legs 424 is hinged to the lower half of the flap. By replacing different replaceable joints, the production of topsoil substitute materials with different formulas can be realized.

[0021] The working process is that when the turntable is in the front half of the circle, the discharging end of the material distribution belt conveyor faces the feed port of the compartment bin of one of the units (the first unit); the two flat gates are closed. There are four raw materials and an improver such as fertilizer for preparing the topsoil substitute material. First, the first raw material is sent to the first small bin of the compartment bin by the feeding belt conveyor through the hopper and the material distribution belt conveyor of the first unit; then the second raw material is sent to the second small bin by the above method, until the fourth raw material is sent to the fourth small bin. The quantity of the four raw materials is in accordance with the ratio disclosed in CN110934050A or other ratios. Open the two flat gates, and the four raw materials simultaneously enter the funnel-type mixing bin through the replaceable joints for mixing, and then enter the double-shaft mixer. At the same time, turn on the blower to blow the fertilizer into the double-shaft mixer. After the four raw materials and the fertilizer are fully mixed, the double-shaft mixer outputs the topsoil substitute material.

[0022] After the first unit completes feeding, the unit enters the next operation procedure, and the material distribution device rotates to the second unit for material distribution operation, that is, when the turntable is in the second half of the circle, the material distribution belt conveyor discharge end faces the second unit's compartment bin feeding port. This can achieve continuous operation and improve efficiency.

Claims

1. A device for preparing a topsoil substitute material, characterized by: It is composed of a feeding device, a material distribution device, and a mixing and stirring device connected in series from top to bottom and installed on the equipment frame; The feeding device is composed of a feeding belt conveyor and a hopper in series; The material distribution device consists of a material distribution belt conveyor and an electric rotary mechanism. The electric rotary mechanism is installed on the equipment frame, and the material distribution belt conveyor is installed on the rotary table of the electric rotary mechanism, so that the material distribution belt conveyor can rotate with the rotary table; The mixing and stirring device is composed of two mixing and stirring units arranged in parallel on the left and right; each unit is a compartment bin, a replaceable joint, a funnel-type mixing bin and a double-shaft mixer connected in series from top to bottom, a flat gate is respectively arranged at the outlet of the replaceable joint and the outlet of the funnel-type mixing bin, and the improver feeding device, i.e., the air outlet of the blower, faces the double-shaft mixer; when the turntable rotates in the first half of the circle, the discharging end of the cloth belt conveyor faces the compartment bin feed inlet of one unit, and when it rotates in the second half of the circle, the discharging end of the cloth belt conveyor faces the compartment bin feed inlet of another unit. The compartment is a square funnel-shaped compartment, and three partitions are arranged in sequence on the left and right sides of the compartment to divide the compartment into four small compartments arranged on the left and right sides; the replaceable joint is in the shape of a square tube, which is sleeved on the compartment outlet, and three flaps are arranged in sequence on the left and right sides of the square tube cavity to divide the square tube cavity into four channels corresponding to the four small compartments, and the upper end of each flap is hinged to the frame, and a plurality of leg positioning pits arranged on the left and right sides into which the legs can be inserted are arranged on the frame at the square tube outlet, and the upper ends of the legs are hinged to the lower half of the ground flap.

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