Spiral discharging type water sump cleaning equipment

Abstract

The utility model relates to spiral discharging type water sump cleaning equipment which comprises a forklift, a spiral conveyor, a vibrating screen type solid-liquid separator and a filter press, a forklift is arranged in the water sump and used for shoveling sludge in the water sump into the spiral conveyor; a spiral conveyor is arranged at a bin opening of the water bin and used for diluting and mixing sludge shoveled by the forklift and conveying the sludge to the vibrating screen type solid-liquid separator; the outlet end of the spiral conveyor is in butt joint with the inlet end of the vibrating screen type solid-liquid separator; the vibrating screen type solid-liquid separator and the filter press are arranged outside the water sump, the adaptability to the environment in the water sump is high, collection and conveying of large-particle and thick sludge are achieved, the treatment capacity is improved, and even and continuous feeding of sludge treatment equipment outside the sump can be achieved.

Description

Technical Field

[0001] The utility model relates to a water tank cleaning device, in particular to a spiral unloading type water tank cleaning device, belonging to the field of mining equipment. Background Art

[0002] The underground water tank / sedimentation tank of the coal mine needs to be cleaned regularly to ensure the normal water storage capacity of the water tank / sedimentation tank. However, the composition of the sludge in the water tank is complex. When the sludge has low water content, is relatively viscous, and contains many large particles (diameter greater than 10mm), the existing technology generally uses a dredging mixer truck to collect and pump the sludge in the water tank. The dredging mixer truck uses a screw pump or a submersible pump, which can only extract particles smaller than 15mm, and cannot pump particles larger than 15mm. In addition, the dredging mixer truck encounters too many obstacles when entering the environment and cannot move forward. When encountering large particles, the mixing blade is often stuck, and the sludge is between the stone cracks, and the stone cannot be pumped out, resulting in all the pumped out clear water.

[0003] Another problem that needs to be solved is that the sludge treatment equipment outside the warehouse needs to be loaded evenly and continuously. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a spiral unloading water silo cleaning device, which can solve the collection and transportation of large particle materials in the water silo and evenly and continuously feed the sludge treatment equipment outside the silo.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: spiral unloading water tank cleaning equipment, including a shovel, a screw conveyor, a vibrating screen solid-liquid separator and a filter press; a shovel is provided in the water tank for shoveling the sludge in the water tank into the screw conveyor; a screw conveyor is provided at the water tank port for diluting and mixing the sludge shoveled by the shovel, and conveying it to the vibrating screen solid-liquid separator; the outlet end of the screw conveyor is connected to the inlet end of the vibrating screen solid-liquid separator; a vibrating screen solid-liquid separator is provided outside the water tank for preliminary screening of the sludge conveyed by the screw conveyor; the discharge port of the vibrating screen solid-liquid separator is connected to the feed port of the filter press through a pipeline; a filter press is also provided outside the water tank for filtering and dehydrating the fine coal slime screened by the vibrating screen solid-liquid separator.

[0006] Furthermore, the screw conveyor includes a power component and a barrel shell, a double screw conveying mechanism is arranged in the barrel shell, a hopper is arranged on one end of the barrel shell, and a grid is arranged at the bottom of the hopper; a water inlet is arranged at the bottom of the barrel shell, and a discharge port is arranged at the bottom of the other end of the barrel shell.

[0007] Furthermore, the barrel shell of the screw conveyor has an inclination angle of 5-10°.

[0008] Furthermore, the double-screw conveying mechanism adopts a double-axis self-engaging sawtooth blade structure to fully mix the sludge and water.

[0009] Furthermore, a filter press pump is provided between the discharge port of the vibrating screen type solid-liquid separator and the feed port of the filter press.

[0010] Due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: since a forklift is used in the silo, it has strong adaptability to the environment in the silo, realizes the collection and transportation of large particles and viscous sludge, and improves the processing capacity. Moreover, the forklift only needs one worker to operate, saving manpower, eliminating the links of connecting electricity and water, and improving labor efficiency. Due to the adoption of a screw conveyor, uniform and continuous feeding of the sludge treatment equipment outside the silo is realized. The double-meshing sawtooth spiral blades can promote the conveying of materials and also play a role in crushing and mixing materials. Water is added to the bottom of the barrel shell to fully mix the water with the original sludge and evenly fall into the vibrating screen solid-liquid separator, ensuring the normal and efficient operation of the equipment outside the silo. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a top view of the utility model.

[0013] Figure 3 for Figure 2 Front view of .

[0014] Figure 4 This is a process flow chart of the utility model.

[0015] Figure 5 It is a structural diagram of the screw conveyor.

[0016] Figure 6 for Figure 5 Top view of the .

[0017] In the figure: 1. forklift, 2. screw conveyor, 201. power component, 202. barrel shell, 203. hopper, 204. water inlet, 205. double screw conveying mechanism, 206. grid, 207. outlet end of screw conveyor, 3. vibrating screen type solid-liquid separator, 301. inlet end of vibrating screen type solid-liquid separator, 4. filter press pump, 5. filter press, 6. belt conveyor, A. inside the water tank, B. outside the water tank. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1-3As shown, the spiral unloading water tank cleaning equipment includes a shovel 1, a screw conveyor 2, a vibrating screen solid-liquid separator 3 and a filter press 5; a shovel 1 is provided in the water tank A for shoveling the sludge in the water tank into the screw conveyor 2; a screw conveyor 2 is provided at the water tank port for diluting and mixing the sludge shoveled by the shovel 1 and conveying it to the vibrating screen solid-liquid separator 3; the outlet end 207 of the screw conveyor is connected to the inlet end 301 of the vibrating screen solid-liquid separator; a vibrating screen solid-liquid separator 3 is provided outside the water tank B for preliminarily screening the sludge conveyed by the screw conveyor 2; the discharge port of the vibrating screen solid-liquid separator 3 is connected to the feed port of the filter press through a pipeline; a filter press 5 is also provided outside the water tank B for filtering and dehydrating the fine coal slime screened by the vibrating screen solid-liquid separator 3.

[0020] The vibrating screen type solid-liquid separator 3 includes a screening machine and a buffer stirring tank, the screening machine is arranged on the top of the buffer stirring tank, a stirring impeller is arranged in the buffer stirring tank, and the water outlet of the buffer stirring tank is connected to the feed port of the filter press 5. The large particles screened by the screening machine can be directly spitted onto the belt conveyor 6.

[0021] The belt conveyor 6 is arranged at the lower end of the filter press 5 and extends to a designated location. The belt conveyor 6 is used to transport the sludge cake after discharge from the filter press 5 and the coarse sludge after preliminary screening by the vibrating screen solid-liquid separator 3 to the designated location.

[0022] The screw conveyor 2 includes a power component 201 and a barrel shell 202. A double screw conveying mechanism 205 is arranged in the barrel shell 202. A hopper 203 is arranged at one end of the barrel shell 202, and a grille 206 is arranged at the bottom of the hopper 203. A water inlet 204 is arranged at the bottom of the barrel shell 202, and a discharge port 207 is arranged at the other end of the barrel shell. The grille 206 can prevent debris such as stones with a diameter greater than 100 mm from entering the equipment, thereby protecting the screw conveyor 2 and the vibrating screen solid-liquid separator 3.

[0023] The barrel shell 202 of the screw conveyor has an inclination angle of 5-10° (i.e., the inclination angle of the double screw conveying mechanism 205 is 5-10°). The barrel shell 202 of the conventional screw conveyor is set for horizontal conveying. Since the spiral blades and the barrel shell 202 cannot fit closely (there is a gap of about 8-10mm), if it is conveyed horizontally, the water will automatically and quickly leave the shell, and the mixing effect will be greatly reduced. If the inclination angle of the barrel shell 202 is too large, the water will not be lifted up, causing the feed port to overflow. The most suitable inclination angle here is 5-10°. At this angle, a part of the water will always be retained at the bottom of the barrel shell. When the amount of water increases, it will automatically overflow from the discharge port. At the same time, when the material enters the double screw conveying mechanism, it will be fully mixed with the water at the bottom of the barrel shell. Large particles (>10mm) will be directly transported away, and small particles will remain in place through the spiral gap and dissolve with water. If there are still small particles that are not soluble in water, when the particles accumulate to a certain number, they will also be pushed away by the spiral, thereby achieving the effect of mixing and conveying materials.

[0024] The double-screw conveying mechanism 205 adopts a double-axis self-engaging sawtooth blade structure to fully mix the sludge and water.

[0025] A filter press pump 4 is provided between the discharge port of the vibrating screen type solid-liquid separator 3 and the feed port of the filter press 5 .

[0026] like Figure 4 As shown, when working, the shovel 1 shovels the sludge to be processed into the hopper 203 of the screw conveyor 2, and water can also be added to the sludge in the hopper 203 (not shown in the figure, it can be connected to the underground water through a water pipe), and mixed in the double screw conveying mechanism 205 and conveyed to the vibrating screen type solid-liquid separator 3. The vibrating screen type solid-liquid separator 3 performs preliminary coarse and fine separation on the sludge, and the coarse sludge is spit onto the belt conveyor 6, and the fine sludge slurry enters the buffer stirring tank. The sludge is stirred for the second time by the stirring impeller to make it uniform and not precipitated. The filter press pump 5 presses the fine sludge slurry in the buffer stirring tank into the filter press 5 for dehydration. The dehydrated sludge is discharged onto the belt conveyor 6 and transported to the designated location, and the warehouse clearance project is completed.

Claims

1. Screw unloading type water tank cleaning equipment, characterized by: It comprises a forklift (1), a screw conveyor (2), a vibrating screen type solid-liquid separator (3) and a filter press (5); A shovel (1) is provided in the water tank (A) for shoveling the sludge in the water tank into the screw conveyor (2); A screw conveyor (2) is provided at the water tank port for diluting and mixing the sludge shoveled by the shovel truck (1) and conveying the sludge to the vibrating screen type solid-liquid separator (3); the outlet end (207) of the screw conveyor is connected to the inlet end (301) of the vibrating screen type solid-liquid separator; A vibrating screen type solid-liquid separator (3) is provided outside the water tank (B) for performing preliminary screening on the sludge transported by the screw conveyor (2); the discharge port of the vibrating screen type solid-liquid separator (3) is connected to the feed port of the filter press (5) via a pipeline; A filter press (5) is also provided outside the water bin (B) for filtering and dehydrating the fine coal slime screened by the vibrating screen solid-liquid separator (3).

2. The spiral unloading silo cleaning equipment according to claim 1 is characterized in that: The screw conveyor (2) comprises a power component (201) and a barrel shell (202). A double screw conveying mechanism (205) is arranged in the barrel shell (202). A hopper (203) is arranged at one end of the barrel shell (202), and a grid (206) is arranged at the bottom of the hopper (203). A water inlet (204) is arranged at the bottom of the barrel shell (202), and an outlet (207) is arranged at the bottom of the other end of the barrel shell (202).

3. The spiral unloading silo cleaning equipment according to claim 2 is characterized in that: The barrel shell (202) of the screw conveyor has an inclination angle of 5-10°.

4. The spiral unloading silo cleaning equipment according to claim 2 is characterized in that: The double-screw conveying mechanism (205) adopts a double-axis self-engaging sawtooth blade structure and is used to fully mix the sludge and water.

5. The spiral unloading silo cleaning equipment according to claim 1 is characterized in that: A filter press pump (4) is provided between the discharge port of the vibrating screen type solid-liquid separator (3) and the feed port of the filter press (5).

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