Self-discharging hopper device

Abstract

The utility model belongs to the technical field of blocky material storage and discharging, and particularly relates to a self-discharging hopper device which is characterized by comprising a hopper, a hopper support, a discharging pipe arranged on the upper portion of the hopper, a feeding port formed in the end of the discharging pipe, a grid plate arranged below the feeding port and a fan-shaped rotating discharging turning plate arranged on the lower portion of the hopper. The two discharging collision rods are connected with the fan-shaped rotating discharging turning plate and are arranged side by side, and the tilting cart is arranged below the hopper. According to the utility model, the period of clearing and transporting large materials is obviously prolonged, and the working efficiency of the ball mill is effectively ensured; a crown block hoisting mode is replaced by a mode from self-unloading to material carrying by a tilting cart, so that the hoisting workload is greatly reduced, and favorable conditions are created for other hoisting operations; automatic unloading is achieved by means of rolling contact between the tail portion of the vehicle and the unloading sinker bar carrier roller, unloading operation of personnel is omitted, and meanwhile the potential safety hazard that the vehicle is prone to colliding and squeezing the personal injury accident in the material loading and unloading operation in the limited space is eliminated.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage and unloading of block materials, in particular to a self-unloading hopper device. Background Art

[0002] In the daily production operation of the ball mill in the mineral processing plant, large ore particles, broken steel balls or debris are often discharged from the discharge end of the mill into the hopper in an irregular manner due to reasons such as "large feed volume, coarse feed particle size, high ore hardness, bloating of the mill, excessive filling of grinding media, etc.". The following defects exist in the operation of handling materials in the hopper:

[0003] Due to the small hopper volume and short buffer time for filling the material, when the ball mill discharges a large number of agglomerates, the mill feed is forced to be urgently reduced or stopped, resulting in reduced mill efficiency, affecting production capacity and wasting electricity.

[0004] The original method of handling the material in the hopper involved using an overhead crane to lift the small hopper to a larger hopper approximately 100 meters away for unloading. This cumbersome process involved heavy lifting, was labor-intensive, and required significant crane time, significantly impacting the mill's ball loading and maintenance operations. First, one operator attached the small hopper to the overhead crane hook with a steel rope and lifted it to the larger hopper at zero meters. Another operator then used a hammer to remove the hooks on the hopper's floor, lifted the hopper, unloaded the material, lowered the hopper, reattached the hooks on the floor, and finally lifted the empty hopper back. This increased the workload and intensity of the three operators. Summary of the Invention

[0005] The purpose of this utility model is to solve the above problems and, in combination with the actual situation on site, invent a large-volume self-unloading hopper device, which can significantly extend the cycle of clearing and transporting materials, ensure the grinding efficiency of the ball mill, omit the material lifting operation, ensure that the mill ball adding operation and maintenance lifting operation use a crane, and the self-unloading material to a small dump truck for clearing and transporting the material is convenient and fast, reducing the labor intensity and workload of the operators, and at the same time eliminating the safety hazards of collision and object impact during loading and unloading material operations.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] The self-unloading hopper device of the present invention is characterized in that it includes a hopper and a hopper bracket, a discharge pipe arranged on the upper part of the hopper, a feed port arranged at the end of the discharge pipe, a grate plate arranged below the feed port, a fan-shaped rotating discharge flap arranged at the lower part of the hopper, two discharge impact rods connected to the fan-shaped rotating discharge flap and arranged side by side, and a dump truck arranged below the hopper.

[0008] The rear end of the dump truck is provided with a dump truck rear impact rod top plate.

[0009] The two discharge bumping rods are provided with a row of discharge bumping rod supporting rollers in the middle.

[0010] The fan-shaped rotary discharge flap is 30mm from the periphery gap of the discharge port.

[0011] The two discharge bumping rods form a 30-degree angle with the ground.

[0012] The self-unloading hopper device of the utility model has the advantages of prolonging the period of cleaning and transporting large block materials, effectively ensuring the working efficiency of the ball mill, replacing the overhead crane hoisting mode with the self-unloading to small dump truck carrying mode, greatly reducing the hoisting operation amount, creating favorable conditions for other hoisting operations, realizing automatic discharge through the rolling contact between the tail part and the discharge bumping rod supporting roller, omitting personnel operation discharge operation, eliminating the safety hazards of vehicle collision and extrusion personal injury accidents in the limited space loading and unloading operation, saving manpower and power consumption, being simple in structure, easy to operate, safe and reliable in use, free of electric components, and long in service life.

[0013] (1) The self-unloading hopper device of the utility model significantly prolongs the period of cleaning and transporting large block materials, effectively ensures the working efficiency of the ball mill;

[0014] (2) The self-unloading hopper device of the utility model replaces the overhead crane hoisting mode with the self-unloading to small dump truck carrying mode, greatly reduces the hoisting operation amount, and creates favorable conditions for other hoisting operations;

[0015] (3) The self-unloading hopper device of the utility model realizes automatic discharge through the rolling contact between the tail part and the discharge bumping rod supporting roller, omits personnel operation discharge operation, and eliminates the safety hazards of vehicle collision and extrusion personal injury accidents in the limited space loading and unloading operation;

[0016] (4) The self-unloading hopper device of the utility model saves manpower and power consumption, is simple in structure, easy to operate, safe and reliable in use, free of electric components, and long in service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is a right view of the utility model. Figure 1 DETAILED DESCRIPTION

[0019] The specific implementation mode of the utility model will be further explained below in combination with the drawings.

[0020] As shown in the drawings, Figure 1 , 2 The self-unloading hopper device of the utility model is characterized by comprising a hopper 6 and a hopper support 7, a discharging pipe 5 arranged on the upper part of the hopper 6, a feeding port 2 arranged at the end of the discharging pipe 5, a grate plate 3 arranged below the feeding port 2, a fan-shaped rotary discharge flap 8 arranged at the lower part of the hopper 6, two discharge bumping rods 9 connected with the fan-shaped rotary discharge flap 8 and arranged side by side, and a dump truck 10 arranged below the hopper 6.

[0021] The tail of the dump truck 10 is provided with a dump truck tail bumping rod top plate 11.

[0022] ​The two discharge bumpers 9 are provided with a row of discharge bumper rollers 12 in the middle.

[0023] The gap between the fan-shaped rotating discharge flap 8 and the lower discharge port is 30mm.

[0024] The two discharge bumpers 9 form a 30-degree angle with the ground 4.

[0025] The self-discharging hopper device of the utility model, material is discharged from the ore discharge port 1 of the ball mill into the feed inlet 2 of the hopper, and the material is dropped into the hopper 6 through the grate plate 3 and the discharge pipe 5; when the material in the hopper 6 exceeds three fourths of the volume of the hopper 6, the post personnel observes and informs the production staff to drive the small tipper 10 to first drive to the front of the hopper 6 and then drive to the lower part of the hopper 6; the tail of the vehicle gradually lifts the discharge bumper 9 in the process of reversing, and the material is automatically discharged into the tipper 10 after the discharge port is opened; the tipper 10 is full, and the vehicle drives forward; the discharge bumper 9 is gradually lowered by gravity to drive the fan-shaped rotating discharge flap 8 to seal the discharge port, and the tipper 10 is driven away to transport the material.

[0026] The discharge mode of the hopper 6 is designed as follows: the discharge bumper 9 is gradually lifted by the sliding of the tipper tail bumper top plate 11 and the discharge bumper roller 12 in the process of reversing of the material tipper 10 to drive the fan-shaped rotating discharge flap 8 to turn up and open the discharge port to realize automatic discharge; the discharge bumper 9 is gradually lowered by gravity to drive the fan-shaped rotating discharge flap 8 to seal the discharge port when the tipper 10 drives forward after being full; the discharge mode does not require personnel to operate the discharge port on site, and the safety hazard of personnel collision and extrusion injury is eliminated.

[0027] In order to avoid the wear caused by the frequent contact between the tail of the tipper 10 and the discharge bumper 9, a row (about 25) of stainless steel rollers with a diameter of 38mm and a length of 400mm, i.e., the discharge bumper roller 12, is installed in the middle of the two discharge bumpers 9 to change the sliding friction into rolling friction, which significantly reduces the wear and resistance.

[0028] According to the size of the material, the gap between the fan-shaped rotating discharge flap 8 and the lower discharge port is designed as 30mm to avoid the fan-shaped rotating discharge flap 8 being stuck by the material and unable to reset.

[0029] According to the fact that 99% of the material in the feed is smaller than 25mm, the grate plate 3 is installed below the feed inlet to allow only the material smaller than 25mm to fall into the hopper 6, so that the large material or sundries do not block the discharge port or stick the fan-shaped rotating discharge flap 8.

[0030] The unloading impact rod 9 is made of two angle steels with a side length of 40 mm, which is light and durable. The unloading impact rod 9 is at an angle of 30 degrees with the ground 4, so as to reduce the impact resistance. A tipping car tail impact rod top plate 11 with a width of 100 mm and the same slope as the impact rod is welded at the contact position between the tipping car tail and the unloading impact rod 9, so that the contact length between the tipping car tail and the unloading impact rod roller 12 reaches 100 mm, avoiding the vibration of the tipping car tail between the unloading impact rod rollers 12, and a rubber belt with a thickness of 15 mm is installed on the upper part of the tipping car tail impact rod top plate 11 to play a buffering and damping role.

[0031] The unloading port switch is a fan-shaped rotating unloading flap 8, which is connected with the unloading port by bolts with a diameter of 30 mm as rotating shafts to realize rotary motion, so as to complete the opening and closing of the unloading port. After adjusting the gap between the rotating shaft bolts, the nuts and screw rods are welded to prevent the unloading flap from falling off.

[0032] The self-unloading hopper device of the utility model prolongs the period of cleaning and transporting bulk materials, effectively guarantees the working efficiency of the ball mill; the self-unloading to small tipping car carrying material mode replaces the overhead crane hoisting mode, greatly reduces the hoisting operation amount, creates favorable conditions for other hoisting operations; the automatic unloading is realized by the rolling contact between the tipping car tail and the unloading impact rod roller, the personnel operation unloading operation is omitted, and the safety hidden danger of vehicle collision and extrusion personal injury accidents easily occurring in the limited space loading and unloading operation is eliminated; manpower and power consumption are saved, the structure is simple and easy to operate, safe and reliable to use, without electric components, and the service life of the facility is long.

Claims

1. A self-unloading hopper device, characterized in that: It includes a hopper and a hopper bracket, a discharge pipe arranged on the upper part of the hopper, a feed port arranged at the end of the discharge pipe, a grate plate arranged below the feed port, a fan-shaped rotating discharge flap arranged at the lower part of the hopper, two discharge impact rods connected to the fan-shaped rotating discharge flap and arranged side by side, and a dump truck arranged below the hopper.

2. The self-unloading hopper device according to claim 1, characterized in that: The rear end of the dump truck is provided with a dump truck rear impact rod top plate.

3. The self-unloading hopper device according to claim 1, characterized in that: A row of unloading striker rollers is arranged between the two unloading striker bars.

4. The self-unloading hopper device according to claim 1, characterized in that: The gap between the fan-shaped rotating unloading flap and the periphery of the unloading port is 30 mm.

5. The self-unloading hopper device according to claim 1, characterized in that: The two unloading impact rods form an angle of 30 degrees with the floor.

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