Efficient environment-friendly mining anti-explosion diesel oil side-unloading coal loader

Abstract

The utility model relates to an efficient environment-friendly mining anti-explosion diesel oil side unloading coal loader which comprises a main machine body, a working platform is arranged on the main machine body, a working mechanism, a driver seat and a protective cover are sequentially arranged on the working platform from left to right, a waste gas treatment box, a water supplementing box and an anti-explosion diesel engine are arranged in the protective cover, and the working mechanism comprises a bucket. A stirring mechanism is arranged in the bucket and comprises a stirring shaft, a bidirectional spiral stirring blade and a hydraulic motor, the stirring shaft is transversely arranged in an inner cavity of the bucket, and the bidirectional spiral stirring blade is welded to the surface of a shaft body of the stirring shaft; a spraying system is arranged in a box body of the waste gas treatment box, a baffle plate assembly is arranged below the spraying system, and a separation fence assembly is arranged on the side face of the box body. The utility model solves the problems of material caking and tail gas pollution, improves the shoveling efficiency, and is safe and environment-friendly.

Description

Technical Field

[0001] This utility model relates to the field of coal mine drilling rig technology, and in particular to a high-efficiency and environmentally friendly mine explosion-proof diesel side-unloading coal loading machine. Background Technology

[0002] When blasting is used for tunneling in underground coal mines, a coal loader is needed to load the coal falling from the blasting face into mine cars and transport them to the surface. To adapt to the narrow tunnel environment in coal mines, side-discharge coal loaders are commonly used. However, existing side-discharge coal loaders have the following drawbacks:

[0003] (1) The operation of the bucket can easily cause coal to clump together and accumulate, requiring manual assistance to stir and break it up. This is inefficient and poses safety hazards. For example, Chinese Patent CN03132390.1 provides a side-discharge fully hydraulic coal charging machine.

[0004] (2) Most exhaust gas treatment systems use a single filter device, which is not effective in treating high-temperature flue gas and fine dust, and poses a risk of combustion and explosion. Although water mist dust removal is used in the existing technology, it lacks dust isolation design.

[0005] Therefore, there is an urgent need for an efficient and environmentally friendly solution. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a high-efficiency and environmentally friendly mine explosion-proof diesel side unloading coal loading machine, which solves the problems of material agglomeration and exhaust gas pollution, and improves the efficiency of shoveling and transportation while ensuring safety and environmental protection.

[0007] The purpose of this utility model is achieved as follows:

[0008] A high-efficiency and environmentally friendly explosion-proof diesel side-unloading coal loading machine for mining includes a main body with a working platform. From left to right, the working platform houses a working mechanism, a driver's seat, and a protective cover. The protective cover contains an exhaust gas treatment box, a water tank, and an explosion-proof diesel engine. A hydraulic device and an electrical control box are located between the working mechanism and the driver's seat. Tracked walking devices are fixed to the left and right sides of the main body, contacting the ground for moving the main body. A support is connected to one side of the working mechanism, positioned above the front end of the working platform, and the hydraulic device and electrical control box are fixed on the support.

[0009] The working mechanism includes a bucket, a bucket base, a side unloading cylinder, a bucket arm, a bucket pulling cylinder, and a bucket lifting cylinder. One end of the bucket arm is fixed to the bracket of the main machine body, and the other end is hinged to the bottom of the bucket base.

[0010] The bucket is equipped with a stirring mechanism, which includes a stirring shaft, bidirectional spiral stirring blades and a hydraulic motor. The stirring shaft is arranged laterally in the inner cavity of the bucket, and the bidirectional spiral stirring blades are welded to the surface of the stirring shaft. One end of the stirring shaft is connected to the hydraulic motor.

[0011] The exhaust gas treatment box has multiple parallel and equidistantly arranged water inlet pipes on its inner top surface. One end of each water inlet pipe extends out of the air inlet of the exhaust gas treatment box and connects to a water source, while the other end reaches the side wall of the air outlet of the exhaust gas treatment box. Multiple sets of fan-shaped atomizing nozzles are evenly distributed on the water inlet pipes to form a spray system. An isolation grid assembly is installed on the side of the air outlet of the exhaust gas treatment box, and the isolation grid assembly includes a double-layer isolation grid. Inside the exhaust gas treatment box, there is a baffle assembly, which is installed in layers inside the treatment box, with the upper and lower layers arranged in an alternating pattern to extend the residence time of the exhaust gas.

[0012] Furthermore, one end of the bucket-pulling cylinder is connected to the top side of the bucket base, and the other end of the bucket-pulling cylinder is fixed to the bracket of the main machine body.

[0013] Furthermore, a lifting cylinder is provided below the bucket arm, with one end of the lifting cylinder connected to the bucket arm and the other end fixed to the bracket of the main machine body.

[0014] Furthermore, the bucket base is connected to the bucket via a side-discharge cylinder, with the lower end of the side-discharge cylinder hinged to the bucket base.

[0015] Furthermore, the hydraulic motor is fixed to the outer wall of the bucket via a flange, and the output shaft of the hydraulic motor passes through the bucket via a mechanical seal to drive the mixing shaft.

[0016] Furthermore, the bidirectional spiral stirring blades maintain a gap of 10-15 mm with the inner wall of the bucket.

[0017] Furthermore, the grid aperture of the isolation fence is ≤0.5mm, and the interlayer spacing is 50mm to form a maze structure.

[0018] Furthermore, the isolation barrier assembly is detachable and is connected to the side wall of the exhaust gas treatment box via a slide rail.

[0019] Furthermore, the bottom of the waste gas treatment box is provided with an inclined sludge collection trough, and a sludge discharge port is provided at the lowest point of the sludge collection trough, and a drain valve is connected to the sludge discharge port.

[0020] Furthermore, a rear support is provided at the rear end of the main body to balance the weight of the entire vehicle.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] (1) Improved work efficiency:

[0023] The present invention features a spiral mixing mechanism inside the bucket, which mixes the coal while shoveling and transporting it, thereby improving coal loading efficiency, eliminating the need for manual intervention, and greatly enhancing shoveling and transport efficiency while improving the safety of operators.

[0024] The bidirectional blade design of the mixing mechanism of this utility model enables uniform crushing of materials, greatly reduces the occurrence rate of lumps, and improves the quality of coal loading and transportation.

[0025] (2) Safety and environmental protection upgrades:

[0026] The exhaust gas treatment box of this utility model adopts multi-stage exhaust gas treatment. The box is equipped with a spray system, which reduces the temperature of the exhaust gas from 500℃ to below 80℃, thereby improving the fire and explosion protection level. The side of the box is equipped with an isolation grid assembly to isolate dust in the exhaust gas, so that the dust concentration of the exhaust gas is ≤10mg / m³, which is better than the GB20426-2006 standard. At the same time, it isolates high temperature, further improving the explosion protection performance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the structure of the bucket of this utility model.

[0029] Figure 3 This is a schematic diagram of the structure of the waste gas treatment box of this utility model.

[0030] in:

[0031] 1. Main body; 2. Working mechanism; 2. Bucket; 2.1. Bucket seat; 2.2. Bucket arm; 2.3. Bucket pulling cylinder; 2.4. Lifting cylinder; 2.5. Mixing mechanism; 3. Mixing shaft; 3.1. Bidirectional spiral mixing blades; 3.2. Hydraulic motor; 3.3. Exhaust gas treatment box; 4. Box body; 4.1. Water inlet pipe; 4.2. Nozzle; 4.3. Baffle assembly; 4.4. Isolation fence assembly; 4.5. Driver's seat; 5. Hydraulic device; 6. Protective cover; 7. Dustproof canopy; 8. Rear support seat; 9. Tracked walking device; 10. Detailed Implementation

[0032] To better understand the technical solution of this utility model, a detailed description will be provided below in conjunction with relevant illustrations. It should be understood that the specific embodiments described below are not intended to limit the specific implementation of the technical solution of this utility model, but are merely possible implementations of the technical solution of this utility model. It should be noted that the descriptions of the positional relationships of the components herein, such as component A being located above component B, are based on the relative positions of the components in the illustrations and are not intended to limit the actual positional relationships of the components. Example 1

[0033] See Figures 1-3 , Figure 1 A structural schematic diagram of a high-efficiency and environmentally friendly explosion-proof diesel side-unloading coal loading machine for mining is shown. As shown in the figure, this utility model of a high-efficiency and environmentally friendly explosion-proof diesel side-unloading coal loading machine for mining includes a main body 1, on which a working platform is provided. From left to right, the working platform is provided with a working mechanism 2, a driver's seat 5, and a protective cover 7. The protective cover 7 contains an exhaust gas treatment box 4, a water tank, and an explosion-proof diesel engine. A hydraulic device 6 and an electrical control box are provided between the working mechanism 2 and the driver's seat 5. A dustproof canopy 8 is provided above the driver's seat 5. One end of the dustproof canopy 8 is mounted on the protective cover 7 by a support column, and the other end is mounted between the hydraulic device 6 and the electrical control box by a support column.

[0034] The main body 1 is fixed with tracked walking devices 10 on the left and right sides. The tracked walking devices 10 are in contact with the ground and are used to move the main body 1.

[0035] The working mechanism 2 includes a bucket 2.1, a bucket base 2.2, a side-dumping cylinder, a bucket arm 2.3, a bucket-pulling cylinder 2.4, and a shovel-lifting cylinder 2.5. One end of the bucket arm 2.3 is fixed to the support of the main body 1, and the other end is hinged to the bottom of the bucket base 2.2. One end of the bucket-pulling cylinder 2.4 is connected to the top side of the bucket base 2.2, and the other end of the bucket-pulling cylinder 2.4 is fixed to the support of the main body 1. A shovel-lifting cylinder 2.5 is provided below the bucket arm 2.3. One end of the shovel-lifting cylinder 2.5 is connected to the bucket arm 2.3, and the other end is fixed to the support of the main body 1. The bucket base 2.2 is connected to the bucket 2.1 through the side-dumping cylinder, and the lower end of the side-dumping cylinder is hinged to the bucket base 2.2.

[0036] The bucket 2.1 is equipped with a stirring mechanism 3, which includes a stirring shaft 3.1, a bidirectional spiral stirring blade 3.2, and a hydraulic motor 3.3. The stirring shaft 3.1 is arranged transversely in the inner cavity of the bucket 2.1, and the surface of the stirring shaft 3.1 is welded with a bidirectional spiral stirring blade 3.2 with a spiral angle of 45°±5°.

[0037] One end of the stirring shaft 3.1 is connected to a hydraulic motor 3.3. The hydraulic motor 3.3 is fixed to the outer wall of the bucket 2.1 by a flange. The output shaft of the hydraulic motor 3.3 passes through the bucket 2.1 via a mechanical seal to drive the stirring shaft 3.1.

[0038] The stirring shaft 3.1 is equipped with self-lubricating bearings at both ends, and the bidirectional spiral stirring blades 3.2 maintain a gap of 10~15mm with the inner wall of the bucket 2.1.

[0039] The exhaust gas treatment box 4 has a spray purification section and a filter isolation section inside its box body 4.1;

[0040] Spray purification section: Multiple parallel and equidistantly arranged water inlet pipes 4.2 are provided on the top surface of the inner body 4.1 of the exhaust gas treatment box 4. One end of the water inlet pipe 4.2 extends out of the air inlet end of the exhaust gas treatment box 4.1 and connects to a water source, and the other end reaches the side wall of the air outlet end of the exhaust gas treatment box 4.1. 3 to 6 sets of fan-shaped atomizing nozzles 4.3 are evenly distributed on the water inlet pipes 4.2 to form a spray system with a spray coverage rate of 95%.

[0041] Filtering and isolation section: An isolation grid assembly 4.5 is provided on the side of the exhaust end of the box 4.1 of the exhaust gas treatment box 4. The isolation grid assembly 4.5 includes a double-layer isolation grid. The isolation grid is made of 304 stainless steel. The grid aperture of the isolation grid is ≤0.5mm and the layer spacing is 50mm to form a maze structure.

[0042] The isolation barrier assembly 4.5 is detachable and is connected to the side wall of the exhaust gas treatment box 4.1 via a slide rail.

[0043] The exhaust gas treatment box 4 has a baffle assembly 4.4 inside its body 4.1. The baffle assembly 4.4 is installed in layers inside the treatment box, with the upper and lower layers arranged in an alternating pattern to extend the residence time of the exhaust gas.

[0044] The bottom of the exhaust gas treatment box 4.1 is provided with an inclined sludge collection trough, and a sludge discharge port is provided at the lowest point of the sludge collection trough. A sludge discharge valve is connected to the sludge discharge port.

[0045] The hydraulic motor 3.3 is equipped with an overload protection module, which automatically cuts off the power when the torque is ≥180N·m.

[0046] The spray system pressure is maintained at 0.4-0.6 MPa, and the water consumption is ≤1.5 m³ / h.

[0047] The working mechanism 2 is connected to a support on one side. The support is set above the front end of the working platform, and the hydraulic device 6 and the electrical control box are fixed on the support.

[0048] The rear end of the main body 1 is provided with a rear support seat 9, which is used to balance the weight of the whole vehicle.

[0049] The explosion-proof diesel engine includes a main engine, fuel pump, turbocharger, diesel filter, oil filter, oil cooler assembly, water pump, and air conditioning drive. The explosion-proof diesel engine is a four-cylinder, four-stroke, inline direct-injection, turbocharged, intercooled, electronically controlled fuel injection diesel engine, employing a Bosch distributor-type fuel injection pump and using an EC transmission control device to control the engine's fuel supply process. The system inputs signals such as engine temperature, air-fuel ratio, throttle position, engine speed, load, crankshaft position, and loading / driving conditions from various sensors into the electronic control unit. Based on these signal parameters, the electronic control unit calculates and controls the required fuel injection quantity and timing for each cylinder, injecting fuel at a certain pressure into the intake manifold for atomization, mixing with the incoming airflow, and then burning in the combustion chamber, thereby ensuring the engine always operates at its optimal state.

[0050] Working principle:

[0051] This utility model provides a high-efficiency and environmentally friendly explosion-proof diesel side-discharge coal loading machine for mining, including an explosion-proof diesel engine power system, a traveling mechanism, a side-discharge bucket assembly, and a main body. The inner cavity of the bucket is laterally equipped with a stirring mechanism driven by a hydraulic motor. A multi-stage exhaust gas treatment box is integrated at the rear of the main body. The stirring mechanism includes axially symmetrically distributed bidirectional spiral stirring blades with a spiral angle of 45°±5° and a gap of 10-15mm between the blades and the inner wall of the bucket. The exhaust gas treatment box has a fan-shaped atomizing nozzle array on the top and a detachable double-layer stainless steel isolation grid on the side.

[0052] During operation, the hydraulic motor drives the agitator shaft at 120 r / min, and the material is crushed by the spiral blades and then enters the bucket. After the diesel engine exhaust enters the treatment box, it is first enveloped by 0.5MPa water mist to reduce dust, and then filtered through a double-layer isolation grid before finally meeting emission standards.

[0053] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A high-efficiency and environmentally friendly explosion-proof diesel side-unloading coal loading machine for mining, characterized in that: It includes the main machine body (1), the main machine body (1) is equipped with a work platform, the work platform is sequentially provided with a working mechanism (2), a driver's seat (5) and a protective cover (7) from left to right, the protective cover (7) is provided with a waste gas treatment tank (4), a water replenishing tank and an explosion-proof diesel engine, a hydraulic device (6) and an electric control box are arranged between the working mechanism (2) and the driver's seat (5); the left and right sides of the main machine body (1) are fixed with track walking devices (10), the track walking devices (10) are in contact with the ground and are used for moving the main machine body (1); one side of the working mechanism (2) is connected with a support, the support is arranged above the front end of the work platform, and the hydraulic device (6) and the electric control box are fixed on the support; The working mechanism (2) comprises a bucket (2.1), a bucket seat (2.2), a side unloading oil cylinder, a bucket arm (2.3), a pull bucket oil cylinder (2.4) and a lifting bucket oil cylinder (2.5), one end of the bucket arm (2.3) is fixed on the support of the main machine body (1), and the other end is hingedly connected with the bottom of the bucket seat (2.2). The bucket (2.1) is internally provided with a stirring mechanism (3), the stirring mechanism (3) comprises a stirring shaft (3.1), bidirectional spiral stirring blades (3.2) and a hydraulic motor (3.3), the stirring shaft (3.1) is arranged in the transverse direction in the inner cavity of the bucket (2.1), and the shaft body surface of the stirring shaft (3.1) is welded with the bidirectional spiral stirring blades (3.2); one end of the stirring shaft (3.1) is connected with the hydraulic motor (3.3). A plurality of water inlet pipes (4.2) are arranged in parallel and equidistantly on the top surface of the tank body (4.1) of the waste gas treatment tank (4), one end of the water inlet pipe (4.2) extends out of the gas inlet end of the tank body (4.1) of the waste gas treatment tank (4) and is connected with a water source, and the other end reaches the side wall of the gas outlet end of the tank body (4.1) of the waste gas treatment tank (4); a plurality of groups of fan-shaped atomizing nozzles (4.3) are distributed equidistantly on the water inlet pipe (4.2) and form a spraying system; a partition grid assembly (4.5) is arranged on the side surface of the gas outlet end of the tank body (4.1) of the waste gas treatment tank (4), the partition grid assembly (4.5) comprises double-layer partition grids; a baffle assembly (4.4) is arranged in the tank body (4.1) of the waste gas treatment tank (4), the baffle assembly (4.4) is installed in layers in the treatment tank, and the upper layer and the lower layer are arranged in a staggered manner, thereby prolonging the residence time of waste gas.

2. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 1, characterized in that: One end of the pull bucket oil cylinder (2.4) is connected with one side of the top of the bucket seat (2.2), and the other end of the pull bucket oil cylinder (2.4) is fixed on the support of the main machine body (1).

3. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 2, characterized in that: A lifting bucket oil cylinder (2.5) is arranged below the bucket arm (2.3), one end of the lifting bucket oil cylinder (2.5) is connected with the bucket arm (2.3), and the other end of the lifting bucket oil cylinder (2.5) is fixed on the support of the main machine body (1).

4. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 2, characterized in that: The bucket seat (2.2) is connected with the bucket (2.1) through the side unloading oil cylinder, and the lower end of the side unloading oil cylinder is hingedly connected with the bucket seat (2.2).

5. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 1, characterized in that: The hydraulic motor (3.3) is fixed to the outer wall of the bucket (2.1) by a flange plate, and the output shaft of the hydraulic motor (3.3) penetrates into the bucket through a mechanical seal to drive the stirring shaft (3.1).

6. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 5, characterized in that: The bidirectional spiral stirring blade (3.2) keeps a gap of 10-15mm with the inner wall of the bucket (2.1).

7. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 1, characterized in that: The grid aperture of the isolation grid is ≤0.5mm, and the interlayer spacing is 50mm to form a labyrinth structure.

8. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 1, characterized in that: The isolation grid assembly (4.5) is detachable and connected to the sidewall of the box body (4.1) of the waste gas treatment box (4) through a slide rail.

9. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 1, characterized in that: The bottom of the box body (4.1) of the waste gas treatment box (4) is provided with an inclined sludge collecting groove, and a residue discharging port is arranged at the lowest part of the sludge collecting groove, and a sewage valve is connected to the residue discharging port.

10. The high-efficiency environmentally friendly mine explosion-proof diesel side-unloading coal loader according to claim 1, characterized in that: The rear end of the main machine body (1) is provided with a rear support seat (9) for balancing the weight of the whole vehicle.

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