Coal wharf production sewage recovery treatment system

Abstract

The utility model relates to a coal wharf production sewage recovery treatment system which comprises a gate shaft, a grating groove, a water collecting tank, a pipeline mixer, a dosing room, a pre-sedimentation regulating tank, a suction well, a full-automatic water purifier, a clean water tank, a sludge collecting tank, a sludge thickening tank and a plate-and-frame filter press, the gate well, the grating groove, the water collecting tank, the pipeline mixer, the pre-sedimentation adjusting tank, the water suction well, the full-automatic water purifier and the clean water tank are sequentially connected through water suction pumps, the dosing room is connected with inlets and outlets of the water collecting tank and the pipeline mixer through corresponding dosing pumps, and sewage draining outlets of the pre-sedimentation adjusting tank and the full-automatic water purifier are connected with the sludge collecting tank through sludge pumps. The sludge collecting tank, the sludge thickening tank and the plate-and-frame filter press are sequentially connected through a sludge pump, two groups of disinfection mechanisms are arranged in the clean water tank, a plurality of filter grids are detachably mounted in the grid tank, and a cleaning mechanism for cleaning the filter grids is detachably mounted at the top of the grid tank. The sewage recycling device is good in sewage recycling effect and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a coal terminal production sewage recovery and treatment system. Background Art

[0002] Due to the loading and unloading process, open-air stacking of coal and other reasons, coal terminals will produce a large amount of coal-containing wastewater. Coal-containing wastewater includes wet dust removal drainage of the coal transportation system, dust reduction spray water in the coal yard, sewage generated by washing the coal transportation trestle and the floor of the coal transportation building, water for washing the reclaimer and stacker, water for dust removal by spraying the spray gun station and rainwater containing coal. The application of sewage treatment technology is particularly important today when advocating the concept of water conservation and environmental protection. By purifying and treating coal mine sewage to meet the reuse standards, it can not only achieve the recycling of resources, but also increase the economic benefits for related enterprises. However, the commonly used sewage treatment systems currently have the disadvantages of imperfect treatment processes, single treatment methods and poor effects. For example, the grilles that filter dirt are mostly fixed and installed, which are not easy to clean after being blocked, affecting subsequent use. In addition, most of the recycled clean water is directly reused at the coal terminal, lacking disinfection measures, and posing certain safety hazards. Summary of the invention

[0003] The utility model aims to solve the deficiencies of the prior art and provides a coal terminal production sewage recovery and treatment system.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal terminal production wastewater recovery and treatment system, including a gate well, a grille trough, a water collection tank, a pipeline mixer, a dosing room, a pre-sedimentation regulating tank, a water suction well, a full-automatic water purifier, a clean water tank, a sludge collection tank, a sludge thickening tank, and a plate-frame filter press; the gate well, the grille trough, the water collection tank, the pipeline mixer, the pre-sedimentation regulating tank, the water suction well, the full-automatic water purifier, and the clean water tank are connected in sequence through a water suction pump, the dosing room is connected to the water collection tank and the inlet and outlet of the pipeline mixer respectively through the corresponding dosing pumps, the sewage outlets of the pre-sedimentation regulating tank and the full-automatic water purifier are connected to the sludge collection tank through the sludge pump, the sludge collection tank, the sludge thickening tank, and the plate-frame filter press are connected in sequence through the sludge pump, the clean water outlet of the clean water tank is externally connected to a recovery device, two groups of disinfection mechanisms are arranged in the clean water tank, a plurality of filter grilles are detachably installed in the grille trough, and a cleaning mechanism for cleaning the filter grilles is detachably installed on the top of the grille trough.

[0005] In particular, the dosing room is provided with an acid or alkali dosing room, a PAC dosing room, and a PAM dosing room. The acid or alkali dosing room is connected to the water collection tank, the PAC dosing room is connected to the pipeline on the inlet side of the pipeline mixer, and the PAM dosing room is connected to the pipeline on the outlet side of the pipeline mixer.

[0006] In particular, the recovery device is a dust removal system or a flushing system.

[0007] In particular, a plurality of first slide grooves are provided on the front and rear inner walls of the grille groove, and first sliding blocks corresponding to the first slide grooves are provided on the front and rear sides of the filter grille. The first sliding block is slidably inserted into the first slide groove. The meshes of the plurality of filter grilles decrease successively along the water outlet direction, and a sewage outlet is provided at the bottom of the grille groove near the inlet side.

[0008] In particular, the cleaning mechanism includes a pair of top plates inserted at the two ends of the top of the grille slot, L-shaped plates are fixedly provided at the two ends of the top plates respectively, a moving block is slidably provided between the opposite surfaces of the pair of top plates, an electric push rod is fixedly provided through the moving block, a lifting plate is fixedly connected to the bottom of the push rod of the electric push rod, cleaning brushes are provided on both sides of the lifting plate, a lead screw is rotatably connected between the opposite surfaces of the two L-shaped plates, a first motor for driving the lead screw to rotate is installed at the angle side wall of one of the L-shaped plates, and the lead screw passes through the moving block and is threadedly connected to the moving block.

[0009] Particularly, two ends of the bottom of the top plate are provided with insertion rods, and two sides of the top of the grille slot are provided with slots corresponding to the insertion rods, and the insertion rods are inserted into the slots.

[0010] In particular, the disinfection mechanism includes a pair of circular plates, a plurality of ultraviolet lamps are evenly distributed on the circumference between the opposite surfaces of the pair of circular plates, a connecting rod is provided in the middle of the front and rear sides of the pair of circular plates, a second slider is provided on the opposite sides of the two connecting rods, and a second slide groove corresponding to the second slider is provided on the front and rear inner walls of the clean water tank, and the second slider is slidably inserted into the second slide groove.

[0011] In particular, a pair of second motors are provided at the bottom of the clear water tank, a stirring shaft fixedly connected to the main shaft of the second motor is provided at the bottom of the clear water tank, and the stirring shaft is located on the center line of the circular plate. A plurality of stirring blades are provided on the outer wall of the stirring shaft from top to bottom, and the stirring blades do not contact the ultraviolet lamp.

[0012] The beneficial effects of the utility model are as follows: the utility model improves the sewage treatment process, on the one hand, it can recycle clean water, and on the other hand, it can recycle coal slime, which can effectively avoid waste. The sewage passes through multiple treatment processes, the treatment effect is good, the recovered clean water has good water quality, and the filter grille in the grille groove is easy to clean in time to avoid clogging. The setting of the disinfection mechanism is convenient for disinfecting the clean water and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a system block diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0015] Figure 3 It is a top view schematic diagram of the grille slot of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the disinfection mechanism of the utility model;

[0017] Figure 5 It is a top view schematic diagram of the clean water pool of the utility model;

[0018] In the figure: 1-gate well; 2-grid slot; 201-filter grid; 202-first chute; 203-first slider; 204-drainage outlet; 205-top plate; 206-L-shaped plate; 207-moving block; 208-electric push rod; 209-lifting plate; 210-cleaning brush; 211-screw; 212-first motor; 213-insertion rod; 3-water collection tank; 4-pipe mixer; 5-dosing room; 6-pre-sedimentation adjustment tank; 7-water absorption well; 8-full-automatic water purifier; 9-clear water tank; 901-circular plate; 902-ultraviolet lamp; 903-connecting rod; 904-second slider; 905-second chute; 906-second motor; 907-stirring shaft; 908-stirring blade; 10-recovery equipment; 11-sludge collection tank; 12-sludge concentration tank; 13-plate and frame filter press;

[0019] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] like Figure 1-Figure 5 As shown, a coal terminal production wastewater recycling and treatment system includes a gate well 1, a grille slot 2, a water collection tank 3, a pipeline mixer 4, a dosing room 5, a pre-sedimentation adjustment tank 6, a water absorption well 7, a full-automatic water purifier 8, a clear water tank 9, a sludge collection tank 11, a sludge concentration tank 12, and a plate and frame filter press 13;

[0022] The gate well 1, the grille slot 2, the water collection tank 3, the pipeline mixer 4, the pre-settling regulating tank 6, the water suction well 7, the full-automatic water purifier 8, and the clean water tank 9 are connected in sequence through a water suction pump;

[0023] The dosing room 5 is connected to the water collection tank 3 and the inlet and outlet of the pipeline mixer 4 through corresponding dosing pumps. An acid or alkali dosing room, a PAC dosing room, and a PAM dosing room are respectively arranged inside the dosing room 5. The acid or alkali dosing room is connected to the water collection tank 3, the PAC dosing room is connected to the pipeline on the inlet side of the pipeline mixer 4, and the PAM dosing room is connected to the pipeline on the outlet side of the pipeline mixer 4;

[0024] The sewage outlets of the pre-sedimentation regulating tank 6 and the fully automatic water purifier 8 are connected to the sludge collection tank 11 through a sludge pump, and the sludge collection tank 11, the sludge concentration tank 12, and the plate and frame filter press 13 are connected in sequence through a sludge pump;

[0025] The clean water outlet of the clean water tank 9 is externally connected to a recovery device 10, which is a dust removal system or a flushing system;

[0026] Two sets of disinfection mechanisms are provided in the clean water tank 9, and the disinfection mechanisms include a pair of annular plates 901, a plurality of ultraviolet lamps 902 are evenly distributed on the circumference between the opposite surfaces of the pair of annular plates 901, a connecting rod 903 is provided in the middle of the front and rear sides of the pair of annular plates 901, and a second slider 904 is provided on the opposite side of the two connecting rods 903, and a second slide groove 905 corresponding to the second slider 904 is provided on the front and rear inner walls of the clean water tank 9, and the second slider 904 is slidably inserted into the second slide groove 905; a pair of second motors are provided at the bottom of the clean water tank 9 906, a stirring shaft 907 fixedly connected to the main shaft of the second motor 906 is provided at the bottom of the clean water tank 9, and the stirring shaft 907 is located on the center line of the circular ring plate 901, and a plurality of stirring blades 908 are provided on the outer wall of the stirring shaft 907 from top to bottom, and the stirring blades 908 are not in contact with the ultraviolet lamp 902; during disinfection, the ultraviolet light of the ultraviolet lamp 902 is used for sterilization and disinfection, and during the disinfection process, the second motor 906 works to drive the clean water to rotate, so that the disinfection is more complete, and the disinfection mechanism is easy to disassemble and assemble, which is convenient for subsequent maintenance and replacement;

[0027] A plurality of filter grilles 201 are detachably installed in the grille slot 2, and a cleaning mechanism for cleaning the filter grilles 201 is detachably installed on the top of the grille slot 2; a plurality of first slide grooves 202 are provided on the front and rear inner walls of the grille slot 2, and a first slider 203 corresponding to the first slide groove 202 is provided on the front and rear sides of the filter grille 201, and the first slider 203 is slidably inserted into the first slide groove 202, and the meshes of the plurality of filter grilles 201 are successively reduced along the water outlet direction, and a sewage outlet 204 is provided at the bottom of the grille slot 2 near the inlet side; the cleaning mechanism includes a pair of top plates 205 plugged into the two ends of the top of the grille slot 2, and rods 213 are provided at the two ends of the bottom of the top plate 205, and slots corresponding to the rods 213 are provided on both sides of the top of the grille slot 2, and the rods 213 are inserted into the slots, and L-shaped plates 206 are fixedly provided at both ends of the top plate 205, and a moving block 207 is slidably provided between the opposite surfaces of the pair of top plates 205, and an electric push rod 208 is fixedly provided through the moving block 207, and the electric push rod 208 A lifting plate 209 is fixedly connected to the bottom of the push rod, and cleaning brushes 210 are arranged on both sides of the lifting plate 209. A lead screw 211 is rotatably connected between the opposite surfaces of the two L-shaped plates 206. A first motor 212 that drives the lead screw 211 to rotate is installed at the angle side wall of one L-shaped plate 206, and the lead screw 211 passes through the moving block 207 and is threadedly connected to the moving block 207; when it is necessary to clean the filter grille 201, the first motor 212 is started to drive the electric push rod 208 to move, and when the electric push rod 208 drives the cleaning brush 210 to move to the filter grille 201, the electric push rod 208 drives the lifting plate 209 to rise and fall, and the cleaning brush 210 cleans the surface of the filter grille 201, and moves back to the top of the filter grille 201 after cleaning. The first motor 212 continues to drive the electric push rod 208 to move to the next filter grille 201 to be cleaned, and the cleaning mechanism is easy to disassemble and assemble, and is easy to maintain, and will not affect the disassembly and assembly of the filter grille 201.

[0028] When the utility model is working, the sewage in the gate well 1 is sucked into the grille slot 2 by the suction pump and filtered through the filter grille 201 for multiple times to isolate larger pieces of pollutants. The sewage after preliminary treatment enters the water collection tank 3, and then acid or alkali is added to adjust the pH value. After reaching the corresponding control value, the sewage enters the pre-sedimentation regulating tank 6. Before entering the pre-sedimentation regulating tank 6, it first enters the pipeline mixer 4, and PAC (polyaluminum chloride) is added before the pipeline mixer 4, and PAM (polyacrylamide) is added after the pipeline mixer 4 for coagulation, and then enters the pre-sedimentation regulating tank 6, so as to better play the coagulation role and the sewage is precipitated. After that, the upper layer of water enters the water suction well 7 through the water suction pump, and then enters the full-automatic water purifier 8 for purification. The full-automatic water purifier 8 can remove suspended matter in stages and use membrane exchange technology to remove high-concentration ions. The clean water that comes out enters the clean water tank 9 and is sterilized and disinfected by the ultraviolet lamp 902 in the clean water tank 9. After disinfection, it is recovered and recycled through the recovery equipment 10 (dust removal system or flushing system). The sludge in the pre-sedimentation adjustment tank 6 and the full-automatic water purifier 8 is pumped into the sludge collection tank 11 through the sludge pump, and then into the sludge concentration tank 12. After the sludge is further concentrated, it enters the plate and frame filter press 13 for dehydration, and the dehydrated coal sludge can be transported out.

[0029] The utility model improves the sewage treatment process. On the one hand, it can recycle clean water, and on the other hand, it can recycle coal slime, which can effectively avoid waste. The sewage passes through multiple treatment processes, the treatment effect is good, and the recycled clean water has good water quality. The filter grille 201 in the grille groove 2 is easy to clean in time to avoid clogging. The setting of the disinfection mechanism is convenient for disinfecting the clean water and reducing safety hazards.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A coal terminal wastewater recovery and treatment system, characterized in that: The invention comprises a gate well (1), a grille slot (2), a water collecting tank (3), a pipeline mixer (4), a dosing room (5), a pre-sedimentation regulating tank (6), a water suction well (7), a fully automatic water purifier (8), a clean water tank (9), a sludge collection tank (11), a sludge concentration tank (12), and a plate and frame filter press (13); the gate well (1), the grille slot (2), the water collecting tank (3), the pipeline mixer (4), the pre-sedimentation regulating tank (6), the water suction well (7), the fully automatic water purifier (8), and the clean water tank (9) are connected in sequence through a water suction pump, and the dosing room (5) is connected to the water collecting tank through corresponding dosing pumps. (3), the inlet and outlet of the pipeline mixer (4) are connected, the sewage outlets of the pre-sedimentation regulating tank (6) and the full-automatic water purifier (8) are connected to the sludge collection tank (11) through a sludge pump, the sludge collection tank (11), the sludge concentration tank (12), and the plate and frame filter press (13) are connected in sequence through the sludge pump, the clean water outlet of the clean water tank (9) is externally connected to a recovery device (10), two groups of disinfection mechanisms are arranged in the clean water tank (9), a plurality of filter grilles (201) are detachably installed in the grille slot (2), and a cleaning mechanism for cleaning the filter grilles (201) is detachably installed on the top of the grille slot (2).

2. A coal terminal wastewater recovery and treatment system according to claim 1, characterized in that: An acid or alkali dosing room, a PAC dosing room, and a PAM dosing room are respectively arranged inside the dosing room (5); the acid or alkali dosing room is connected to the water collection tank (3); the PAC dosing room is connected to the pipeline on the inlet side of the pipeline mixer (4); and the PAM dosing room is connected to the pipeline on the outlet side of the pipeline mixer (4).

3. A coal terminal wastewater recovery and treatment system according to claim 1, characterized in that: The recovery device (10) is a dust removal system or a flushing system.

4. A coal terminal wastewater recovery and treatment system according to claim 1, characterized in that: A plurality of first slide grooves (202) are provided on the front and rear inner walls of the grille slot (2); first sliders (203) corresponding to the first slide grooves (202) are provided on the front and rear sides of the filter grille (201); the first sliders (203) are slidably inserted into the first slide grooves (202); the meshes of the plurality of filter grilles (201) decrease in size in sequence along the water outlet direction; and a sewage outlet (204) is provided at the bottom of the grille slot (2) close to the inlet.

5. A coal terminal wastewater recovery and treatment system according to claim 1, characterized in that: The cleaning mechanism comprises a pair of top plates (205) inserted at the two ends of the top of the grille slot (2), L-shaped plates (206) are fixedly arranged at the two ends of the top plates (205), a moving block (207) is slidably arranged between the opposite surfaces of the pair of top plates (205), an electric push rod (208) is fixedly arranged through the moving block (207), a lifting plate (209) is fixedly connected to the bottom of the push rod of the electric push rod (208), cleaning brushes (210) are arranged on both sides of the lifting plate (209), a lead screw (211) is rotatably connected between the opposite surfaces of the two L-shaped plates (206), a first motor (212) for driving the lead screw (211) to rotate is installed at the angle side wall of one of the L-shaped plates (206), and the lead screw (211) passes through the moving block (207) and is threadedly connected to the moving block (207).

6. A coal terminal wastewater recovery and treatment system according to claim 5, characterized in that: Insertion rods (213) are provided at both ends of the bottom of the top plate (205), and slots corresponding to the insertion rods (213) are provided at both sides of the top of the grille slot (2), and the insertion rods (213) are inserted into the slots.

7. A coal terminal wastewater recovery and treatment system according to claim 1, characterized in that: The disinfection mechanism comprises a pair of annular plates (901), a plurality of ultraviolet lamps (902) are evenly distributed on the circumference between the opposite surfaces of the pair of annular plates (901), a connecting rod (903) is provided in the middle of the front and rear sides of the pair of annular plates (901), a second sliding block (904) is provided on the opposite sides of the two connecting rods (903), and a second sliding groove (905) corresponding to the second sliding block (904) is provided on the front and rear inner walls of the clean water tank (9), and the second sliding block (904) is slidably inserted into the second sliding groove (905).

8. A coal terminal wastewater recovery and treatment system according to claim 7, characterized in that: A pair of second motors (906) are provided at the bottom of the clean water tank (9), and a stirring shaft (907) fixedly connected to the main shaft of the second motor (906) is provided at the bottom of the clean water tank (9), and the stirring shaft (907) is located on the center line of the annular plate (901), and a plurality of groups of stirring blades (908) are provided on the outer wall of the stirring shaft (907) from top to bottom, and the stirring blades (908) do not contact the ultraviolet lamp (902).

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