CN218115250U - Coal slime slurrying dewatering device - Google Patents
Coal slime slurrying dewatering device Download PDFInfo
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- CN218115250U CN218115250U CN202222446365.XU CN202222446365U CN218115250U CN 218115250 U CN218115250 U CN 218115250U CN 202222446365 U CN202222446365 U CN 202222446365U CN 218115250 U CN218115250 U CN 218115250U
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Abstract
A coal slime pulping and dewatering device belongs to the technical field of coal washing. Pulping dewatering device includes: pulping and impurity removing device, storage device, wall breaking device and dewatering device; the pulping and impurity removing device, the storage device, the wall breaking device and the dehydration device are sequentially connected through a chute and a conveying pipeline; the pulping impurity removing device comprises: the system comprises coal slime conveying equipment, a paste slurry preparation machine and a vibrating screen; the discharge end of the coal slime conveying equipment is located at a feeding port of the paste slurry preparation machine, and a discharge port of the paste slurry preparation machine is located above the vibrating screen. The advantages are that: the method has the advantages of simple process flow, stable equipment operation, obvious coal slime pulping and dewatering effect, low labor cost and high working efficiency, and the water content of the coal slime filter cake is reduced to 10 to 20 percent and is far lower than the water content of the coal slime filter cake in the prior art by 25 to 30 percent.
Description
Technical Field
The utility model relates to a coal washing technical field, especially a coal slime slurrying dewatering device.
Background
The coal slime pulping and dewatering are mainly applied to a coal washing process, and a gravity separation method is generally adopted for coal washing treatment. The gravity separation method needs water as a medium, most of moisture is filtered out from gravity-separated coal powder through filter pressing equipment to form coal cakes, and then the coal cakes can be processed next step. The prior process flow comprises the following steps: the coal slurry is conveyed into a stirring barrel by a coal powder thickener, the coal slurry water uniformly stirred by the stirring barrel is conveyed into a gravity device, free water is firstly removed to make the coal slurry water lose fluidity, then the coal slurry water is conveyed into a filter pressing device to form a filter cake, and then the filter cake is peeled off by a discharging device. The filter pressing equipment mainly comprises a plate and frame filter press and a belt filter press. The water content of the coal slime filter cake treated by the coal washing process is generally higher by about 25-30%, and the dewatering effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coal slime slurrying dewatering device solves prior art's coal washing in-process, the high problem of dehydration back coal slime filter cake moisture content.
The purpose of the utility model is realized like this: the utility model discloses a slurrying dewatering device includes: pulping and impurity removing device, storage device, wall breaking device and dewatering device; the pulping and impurity removing device, the storage device, the wall breaking device and the dehydration device are sequentially connected through a chute and a conveying pipeline;
the pulping impurity removing device comprises: the system comprises coal slime conveying equipment, a paste slurry preparation machine and a vibrating screen; the discharge end of the coal slime conveying equipment is located at a feeding port of the paste slurry preparation machine, and a discharge port of the paste slurry preparation machine is located above the vibrating screen.
The coal slime conveying equipment is one of a scraper conveyor, a screw conveyor or a belt conveyor.
The paste preparation machine comprises: the device comprises a driving part, a coupling, a synchronizer, a feeding hole, a stirrer, a pulping shell, a rack, a discharging hole and a driven part;
the driving part and the pulping shell are arranged on the frame, and the feeding end of the pulping shell is lower than the discharging end; a feed port and a discharge port are respectively arranged at the feed end and the discharge end of the pulping shell, the feed port is opened upwards, and the discharge port is opened downwards; a stirrer is arranged in the pulping shell, one end of the stirrer is connected with the driven part, the other end of the stirrer is connected with a synchronizer, and the synchronizer is connected with the driving part through a coupler; the two stirrers are arranged side by side and are driven to orderly run through the synchronizer.
The vibrating screen comprises: one of a DZSF type linear vibrating screen, a drum screen, a KZS type mining vibrating screen, a ZPS series straight-line screen or a 450 type filter screen.
The storage device is a storage bin or a stirring storage bin.
The pumping wall breaking device comprises: pumping equipment and wall breaking equipment; the output port of the pumping equipment is connected with the wall breaking equipment through a wall breaking pipeline, and the output port of the wall breaking equipment is connected with a squeezing pipeline; pumping equipment performs pressurizing and releasing reciprocating motion to perform pressurizing and wall breaking on the coal slime; adopting a grille to break the wall of the coal slime by wall breaking equipment; pumping a wall breaking device to pressurize the coal slime and perform double wall breaking on the coal slime by using a grating; the coal slime through dual broken wall is carried general dewatering equipment that squeezes through the pipeline of squeezing that is connected with broken wall equipment, squeezes the processing to the coal slime in general dewatering equipment that squeezes.
The pumping equipment is a hydraulic plunger pump; or the following steps: one of a double-cylinder cone valve plunger pump, a single-cylinder cone valve plunger pump, an S-swing plunger pump and a single-cylinder plunger pump.
The hydraulic plunger pump comprises: the device comprises a main pressure oil cylinder, a feeding oil cylinder, a piston rod, a material cylinder, a feed hopper, a base, a cleaning water tank, a material cylinder piston, a hopper body, a feeding valve, a discharge oil cylinder and a wall breaking pipeline;
the cleaning water tank and the hopper body are arranged on the base; a main pressure oil cylinder is arranged on one side of the cleaning water tank; a material cylinder is arranged between the other side of the cleaning water tank and the hopper body; one end of the piston rod penetrates through the cleaning water tank and is positioned in the main pressure oil cylinder, and the other end of the piston rod penetrates through the cleaning water tank and is positioned in the material cylinder; an oil cylinder piston and a material cylinder piston are respectively arranged at two ends of the piston rod, the oil cylinder piston is positioned in the main oil cylinder, and the material cylinder piston is positioned in the material cylinder; the upper part of one side of the hopper body is provided with a feed hopper, and the hopper body at the position of the feed hopper is provided with a feed hole; the upper part of the other side of the hopper body is connected with a feeding oil cylinder, the end part of the feeding oil cylinder is connected with a feeding valve, and the feeding valve corresponds to the feeding hole; a discharge hole is arranged on the hopper body at the lower part of the feed hole; the hopper body at the lower end of the feed hopper is connected with a discharge oil cylinder and a wall breaking pipeline, the end part of the discharge oil cylinder is connected with a discharge valve, and the discharge valve corresponds to the discharge hole.
The wall breaking equipment comprises: the device comprises a wall-breaking shell, a wall-breaking grating, grating clamping grooves and a squeezing pipeline; 2-3 grating clamping grooves are formed in the wall breaking shell, a wall breaking grating is respectively arranged in each grating clamping groove, and the wall breaking grating is arranged in the inner space of the wall breaking shell to divide the inner space of the wall breaking shell into a plurality of independent small spaces from front to back; a wall breaking input port and a wall breaking output port are respectively arranged on the side wall at the front end and the side wall at the rear end of the wall breaking shell; the wall breaking input port is connected with the output port of the pumping equipment through a wall breaking pipeline; the wall-broken output port is connected with the input port of a common squeezing dewatering device through a squeezing pipeline; the wall-breaking grating is provided with holes, the sizes of the holes on different wall-breaking gratings are different, and the holes are sequentially arranged in the wall-breaking shell from front to back according to the sizes of the holes; install the broken wall grid in broken wall equipment and can change at any time, back broken wall grid is less for the hole of preceding broken wall grid, and the coal slime carries out the broken wall to it through multistage broken wall grid, realizes the second broken wall to the coal slime.
The dewatering device comprises: the device comprises an equipment frame, a press machine, a squeezing cage, a cloth mud discharging moving frame, a cloth device, a mud discharging device, a squeezing cage pushing device and a mud supporting plate lifting device;
the material distribution and mud discharge moving frame is arranged on the equipment frame, the material distribution device is arranged on the material distribution and mud discharge moving frame, a feeding position of the squeezing cage is arranged below the material distribution device, and the material distribution device runs in a reciprocating mode across the upper portion of the feeding position of the squeezing cage; the mud discharging device is connected to the equipment frame and is positioned at one end of the cloth mud discharging moving frame, one end of the cloth mud discharging moving frame is provided with a squeezing cage, and the squeezing cage is positioned at the other end of the equipment frame; the squeezing cage pushing device is arranged on a foundation at the bottom of the equipment frame; one end of the pressing cage pushing device is connected with a pressing cage hydraulic cylinder, the other end of the pressing cage pushing device is connected with a press machine, and a mud supporting plate lifting device is arranged on the bottom surface of the pressing cage pushing device at the feeding position of the pressing cage; the squeezing cage is arranged on a track of the squeezing cage pushing device, and a squeezing cage hydraulic cylinder of the squeezing cage pushing device drives the squeezing cage to move back and forth on the track of the squeezing cage pushing device and move between the position of the squeezing cage and the press machine.
The squeezing cage comprises: the filter drum lifting device comprises a filter drum supporting plate, a filter pressing barrel body, a filter drum roller and a supporting plate lifting device; a water outlet hole is formed at the bottom of the filter pressing barrel body; a filter barrel supporting plate is arranged in the filter pressing barrel body; the bottom of the filter pressing barrel body is connected with a filter barrel roller; the supporting plate of the filter barrel is connected with a supporting plate lifting device; a filter cloth roller is arranged on the upper end edge of the filter pressing barrel body on one side of the supporting plate lifting device; one end of the filter cloth is fixed on the filter barrel supporting plate, the other end of the filter cloth is fixed on the filter cloth roller, and the filter cloth for cleaning sludge is wound on the filter cloth roller.
The squeezing cage pushing device comprises: the squeezing cage pushing driving device, the driving device supporting frame, the driving device mounting seat and the driving device are hinged; one end of a pressing cage pushing driving device is connected with a driving device mounting seat, the driving device mounting seat is mounted on a base, and the other end of the pressing cage pushing driving device is hinged with a driving device and is connected with a pressing cage through the driving device; a driving device support frame is connected to the shell of the squeezing cage pushing driving device; the squeezing cage pushing and driving device is a hydraulic driving device; or a pneumatic driving device; or an electric drive.
The pressing cage pushing driving device is a hydraulic oil cylinder, an air cylinder or an electric driving device; (1) during material distribution, the pressing cage pushing and driving device pushes the pressing cage to a material distribution mud outlet station for material distribution; (2) after the materials are distributed, the pressing cage pushing and driving device pulls the pressing cage back to a pressing station for pressing; (3) after squeezing is completed, the squeezing cage pushing and driving device pushes the squeezing cage to the cloth mud discharging station again to discharge mud; (4) after the mud is discharged, the material is distributed, and the next working cycle is started.
The mud supporting plate lifting device comprises: the device comprises a mud supporting plate, a lifting driving device guiding protective cylinder and a lifting driving device mounting seat; the upper end of the lifting driving device is connected with a mud supporting plate, the outer wall of the lifting driving device is connected with a guide protective cylinder of the lifting driving device in a sliding manner, and the guide protective cylinder of the lifting driving device penetrates out of the squeezing cage from the lower end of the squeezing cage; the lower part of the lifting driving device is connected with a mounting seat of the lifting driving device, and the mounting seat of the lifting driving device is arranged on a bracket of the lifting device.
The distributing device install on cloth goes out mud and removes the frame, include: the device comprises a cloth mud discharging frame driving device, a temporary storage device, a discharging belt conveyor, a cloth pressing device, a cloth rolling belt conveyor, a mud scraping device, a movable limiting block and a cloth rack;
a moving frame guide rail is arranged on the upper end surface of the cloth rack, and two moving limiting blocks are respectively arranged at two ends of the moving frame guide rail and connected to the cloth rack; the cloth discharging moving frame rolls on the moving frame guide rail; a short joint is fixed on the bottom surface of the cloth mud discharging moving frame, a cloth mud discharging frame driving device is connected between the short joint and the cloth rack, and the cloth mud discharging frame driving device is positioned at one end of the bottom surface of the cloth rack; the lower end of the temporary storage device is provided with a discharging belt conveyor and a cloth rolling belt machine, and a cloth pressing device and a mud scraping device are arranged between the discharging belt conveyor and the cloth rolling belt machine.
Go out the mud device install and go out the mud and remove the frame on the cloth, include: the cloth rolling device comprises a filter cloth roller, a filter cloth carrier roller, a filter cloth tensioning device and a cloth rolling driving device; the cloth rolling driving device is connected with the filter cloth roller and drives the filter cloth roller to operate; the filter cloth carrier roller is spanned on the filter cloth roller and connected on the cloth mud discharging movable frame, and the end part of the cloth mud discharging movable frame is connected with a filter cloth tensioning device; the filter cloth is pulled out from the lower end of the filter cloth roller, bypasses the filter cloth tensioning device and passes through the upper end surface of the filter cloth roller to reach the distributing device; the cloth rolling driving device is a hydraulic driving device; or a pneumatic driving device; or an electric drive.
The beneficial effects are that, owing to adopted above-mentioned scheme, the coal slime gets into the cream thick liquid preparation machine through coal slime conveying equipment, carries out breakage, slurrying, homogenate, compounding to the coal slime, satisfies the requirement before the broken wall. After carrying out dual broken wall to coal slime thick liquids through high-pressure plunger pump and grid broken wall device, carry to filter pressing equipment and carry out degree of depth dehydration. After pulping, broken wall, dehydration technology, final coal slime filter cake moisture content can fall to 10 to 20%, has solved prior art's coal washing in-process, and the problem that dehydration back coal slime filter cake moisture content is high has reached the utility model discloses a purpose.
The advantages are that: the method has the advantages of simple process flow, stable equipment operation, obvious dewatering effect on coal slime pulping, reduction of the water content of the coal slime filter cake to 10-20%, lower water content than the coal slime filter cake of 25-30% in the prior art, low labor cost in operation and high working efficiency.
Drawings
Fig. 1 is a schematic diagram of the frame structure of the present invention.
FIG. 2 is a schematic structural view of the pulping and impurity removing device of the present invention.
Fig. 3 is a schematic structural view of the belt conveyor of the conveying device of the present invention.
Fig. 4 is a side view schematic of fig. 3.
Fig. 5 is a schematic structural view of the screw conveyor of the conveying device of the present invention.
Fig. 6 is a schematic bottom view of the structure of fig. 5.
Fig. 7 is a schematic structural view of the scraper of the conveying equipment of the present invention.
Fig. 8 isbase:Sub>A schematic view of the cross-sectional viewbase:Sub>A-base:Sub>A of fig. 7.
Fig. 9 is the utility model discloses a pump sending broken wall device structure sketch map.
Fig. 10 is a schematic structural view of the dewatering device of the present invention.
In the figure, 1, a pulping impurity removing device; 2. a storage device; 3. pumping a wall breaking device; 4 a dewatering device.
1-1, conveying equipment; 1-2, preparing paste.
1-2-1, a drive component; 1-2-2, a coupler; 1-2-3, a synchronizer; 1-2-4, a feed inlet; 1-2-5, a stirrer; 1-2-6, pulping shell; 1-2-7, a frame; 1-2-8, a discharge hole; 1-2-9, a driven member; 1-3 vibrating screen.
3-1, pumping equipment; 3-1-1, a main oil cylinder; 3-1-2, a feeding oil cylinder; 3-1-3, a piston rod; 3-1-4, a material cylinder; 3-1-5, a feed hopper; 3-1-6, a base; 3-1-7, a cleaning water tank; 3-1-8, a material cylinder piston; 3-1-9 parts of hopper body; 3-1-10, a feed valve; 3-1-11, a discharge valve; 3-1-12, a discharging oil cylinder; 3-1-13, breaking the wall of the pipeline; 3-2, wall breaking equipment; 3-2-1, breaking the shell; 3-2-2, breaking wall and grating; 3-2-3, a squeezing pipeline.
4-1, equipment frame; 4-2, pressing machine; 4-3, a squeezing cage; 4-4, distributing and discharging the mud moving frame; 4-5, a belt type material distribution device; 4-6, a mud discharging device; 4-7, a squeezing cage pushing device; 4-8, a mud supporting plate lifting device.
Detailed Description
Example 1: the utility model discloses a slurrying dewatering device includes: the pulping and impurity removing device 1, the storage device 2, the pumping wall breaking device 3 and the dehydration device 4; the pulping and impurity removing device 1, the storage device 2, the wall breaking device 3 and the dewatering device 4 are sequentially connected through a chute and a conveying pipeline.
The pulping impurity removing device 1 comprises: coal slime conveying equipment 1-1, a paste slurry preparation machine 1-2 and a vibrating screen 1-3; the discharge end of the coal slime conveying equipment 1-1 is located at the feed inlet of the paste slurry preparation machine 1-2, and the discharge outlet of the paste slurry preparation machine 1-2 is located above the vibrating screen 1-3.
The coal slime conveying equipment 1-1 is one of a scraper conveyor 1-1-1, a screw conveyor 1-1-2 or a belt conveyor 1-1-3.
The paste preparation machine 1-2 comprises: the pulping machine comprises a driving part 1-2-1, a coupling 1-2-2, a synchronizer 1-2-3, a feeding port 1-2-4, a stirrer 1-2-5, a pulping shell 1-2-6, a rack 1-2-7, a discharging port 1-2-8 and a driven part 1-2-9;
the driving part 1-2-1 and the pulping shell 1-2-6 are arranged on the rack 1-2-7, and the feeding end of the pulping shell 1-2-6 is lower than the discharging end; a feed port 1-2-4 and a discharge port 1-2-8 are respectively arranged at the feed end and the discharge end of the pulping shell 1-2-6, the feed port 1-2-4 is opened upwards, and the discharge port 1-2-8 is opened downwards; a stirrer 1-2-5 is arranged in the pulping shell 1-2-6, one end of the stirrer 1-2-5 is connected with a driven part 1-2-9, the other end is connected with a synchronizer 1-2-3, and the synchronizer 1-2-3 is connected with a driving part 1-2-1 through a coupler 1-2-2; the two stirrers 1-2-5 are arranged side by side, and the two stirrers 1-2-5 are driven to orderly run through the synchronizers 1-2-3.
The vibrating screen 1-3 is as follows: one of a DZSF type linear vibrating screen, a rotary screen, a KZS type mining vibrating screen, a ZPS series straight-line screen or a 450 type filter screen.
The storage device 2 is a storage bin or a stirring storage bin.
The pumping wall breaking device 3 comprises: pumping equipment 3-1 and wall breaking equipment 3-2; the output port of the pumping equipment 3-1 is connected with the wall breaking equipment 3-2 through a wall breaking pipeline 3-1-13, and the output port of the wall breaking equipment 3-2 is connected with a squeezing pipeline 3-2-3; the pumping equipment 3-1 performs pressurizing and releasing reciprocating motion to pressurize and break the wall of the coal slime; the wall breaking equipment 3-2 adopts a grating to break the wall of the coal slime; pumping the wall breaking device 3 to pressurize the coal slime and perform double wall breaking of the grid; and conveying the coal slime subjected to double wall breaking to general squeezing and dewatering equipment through a squeezing pipeline 3-2-3 connected with the wall breaking equipment 3-2, and squeezing the coal slime in the general squeezing and dewatering equipment.
The pumping equipment 3-1 is a hydraulic plunger pump; or the following steps: one of a double-cylinder cone valve plunger pump, a single-cylinder cone valve plunger pump, an S-swing plunger pump and a single-cylinder plunger pump.
The hydraulic plunger pump comprises: 3-1-1 part of a main pressure oil cylinder, 3-1-2 parts of a feeding oil cylinder, 3-1-3 parts of a piston rod, 3-1-4 parts of a material cylinder, 3-1-5 parts of a feed hopper, 3-1-6 parts of a base, 3-1-7 parts of a cleaning water tank, 3-1-8 parts of a material cylinder piston, 3-1-9 parts of a hopper body, 3-1-10 parts of a feeding valve, 3-1-11 parts of a discharge valve, 3-1-12 parts of a discharge oil cylinder and 3-1-13 parts of a wall breaking pipeline;
the cleaning water tank 3-1-7 and the hopper body 3-1-9 are arranged on the base 3-1-6; one side of the cleaning water tank 3-1-7 is provided with a main pressure oil cylinder 3-1-1; a material cylinder 3-1-4 is arranged between the other side of the cleaning water tank 3-1-7 and the hopper body 3-1-9; one end of a piston rod 3-1-3 penetrating through a cleaning water tank 3-1-7 is positioned in the main pressure oil cylinder 3-1-1, and the other end is positioned in the material cylinder 3-1-4; two ends of a piston rod 3-1-3 are respectively provided with an oil cylinder piston and a material cylinder piston, the oil cylinder piston is positioned in a main oil cylinder 3-1-1, and the material cylinder piston 3-1-8 is positioned in a material cylinder 3-1-4; the upper part of one side of the hopper body 3-1-9 is provided with a feed hopper 3-1-5, and the hopper body 3-1-9 at the position of the feed hopper 3-1-5 is provided with a feed hole; the upper part of the other side of the hopper body 3-1-9 is connected with a feeding oil cylinder 3-1-2, the end part of the feeding oil cylinder 3-1-2 is connected with a feeding valve 3-1-10, and the feeding valve 3-1-10 corresponds to the feeding hole; a discharge hole is arranged on the hopper body 3-1-9 at the lower part of the feed hole; a discharge oil cylinder 3-1-12 and a wall breaking pipeline 3-1-13 are connected on a hopper body 3-1-9 at the lower end of the feed hopper 3-1-5, a discharge valve 3-1-11 is connected at the end part of the discharge oil cylinder 3-1-12, and the discharge valve 3-1-11 corresponds to a discharge hole.
The wall breaking equipment 3-2 comprises: wall-breaking shell 3-2-1, wall-breaking grille 3-2-2, grille clamping groove and squeezing pipeline 3-2-3; 2-3 grating clamping grooves are arranged in the wall breaking shell 3-2-1, a wall breaking grating 3-2-2 is respectively arranged in each grating clamping groove, the wall breaking grating 3-2-2 is arranged in the wall breaking shell 3-2-1 space, and the wall breaking shell 3-2-1 space is divided into a plurality of independent small spaces from front to back; a wall-breaking input port and a wall-breaking output port are respectively arranged on the front side wall and the rear side wall of the wall-breaking shell 3-2-1; the wall breaking input port is connected with the output port of the pumping equipment 3-1 through a wall breaking pipeline 3-1-13; the wall-broken output port is connected with the input port of a common squeezing dewatering device through a squeezing pipeline 3-2-9; the wall-breaking grating is provided with holes, the sizes of the holes on different wall-breaking gratings 3-2-8 are different, and the holes are sequentially arranged in the wall-breaking shell 3-2-1 from front to back according to the sizes of the holes. Install broken wall grid 3-2-2 in broken wall equipment 3-2 and can change at any time, back one broken wall grid 3-2-2 is less for preceding one broken wall grid 3-2-2's hole, and the coal slime carries out the broken wall to it through multistage broken wall grid 3-2-2, realizes the second broken wall to the coal slime.
The dehydration device 4 comprises: the device comprises an equipment frame 4-1, a press machine 4-2, a squeezing cage 4-3, a cloth and mud discharging moving frame 4-4, a cloth device 4-5, a mud discharging device 4-6, a squeezing cage pushing device 4-7 and a mud supporting plate lifting device 4-8;
the material distributing and mud discharging moving frame 4-4 is arranged on the equipment frame 4-1, the material distributing device 4-5 is arranged on the material distributing and mud discharging moving frame 4-4, a feeding position of the squeezing cage 4-3 is arranged below the material distributing device 4, and the material distributing device 4 runs in a reciprocating mode across the upper portion of the feeding position of the squeezing cage 4-3; the mud discharging device 4-6 is connected to the equipment frame 4-1 and is positioned at one end of the cloth mud discharging moving frame 4-4, one end of the cloth mud discharging moving frame 4-4 is provided with a squeezing cage 4-3, and the squeezing cage 4-3 is positioned at the other end of the equipment frame 4-1; a squeezing cage pushing device 4-7 is arranged on the foundation at the bottom of the equipment frame 4-1; one end of the squeezing cage pushing device 4-7 is connected with a squeezing cage hydraulic cylinder, the other end of the squeezing cage pushing device 4-7 is connected with a press machine 4-2, and a mud supporting plate lifting device 4-8 is arranged on the bottom surface of the squeezing cage pushing device 4-7 at the feeding position of the squeezing cage 4-3; the squeezing cage 4-3 is arranged on a track of the squeezing cage pushing device 4-7, and a squeezing cage hydraulic cylinder of the squeezing cage pushing device 4-7 drives the squeezing cage 4-3 to move back and forth on the track of the squeezing cage pushing device 4-7 and move between the position of the squeezing cage 4-3 and the position of the press machine 4-2.
The squeezing cage 4-3 comprises: the filter drum lifting device comprises a filter drum supporting plate, a filter pressing barrel body, a filter drum roller and a supporting plate lifting device; a water outlet hole is formed at the bottom of the filter pressing barrel body; a filter barrel supporting plate is arranged in the filter pressing barrel body; the bottom of the filter pressing barrel body is connected with a filter barrel roller; the supporting plate of the filter barrel is connected with a supporting plate lifting device; a filter cloth roller is arranged on the upper end edge of the filter pressing barrel body on one side of the supporting plate lifting device; one end of the filter cloth is fixed on the filter barrel supporting plate, the other end of the filter cloth is fixed on the filter cloth roller, and the filter cloth for cleaning sludge is wound on the filter cloth roller.
The squeezing cage pushing device 4-7 comprises: the squeezing cage pushing driving device 2-1, the driving device supporting frame 2-2, the driving device mounting seat 2-3 and the driving device are hinged 2-4; one end of a squeezing cage pushing and driving device 2-1 is connected with a driving device mounting seat 2-3, the driving device mounting seat 2-3 is mounted on a base, and the other end of the squeezing cage pushing and driving device 2-1 is hinged with a driving device 2-4 and is connected with a squeezing cage through the driving device 2-4; a driving device support frame 2-2 is connected on the shell of the squeezing cage pushing driving device 2-1. The squeezing cage pushing driving device 2-1 is a hydraulic driving device; or a pneumatic driving device; or an electric drive.
The squeezing cage pushing driving device 2-1 is a hydraulic oil cylinder, an air cylinder or an electric driving device. (1) When distributing, the pressing cage pushing and driving device 2-1 pushes the pressing cage to a distributing mud discharging station for distributing; (2) after the materials are distributed, the squeezing cage pushing and driving device 2-1 pulls the squeezing cage back to a squeezing station for squeezing; (3) after squeezing is finished, the squeezing cage pushing and driving device 2-1 pushes the squeezing cage to the cloth mud discharging station again to discharge mud; (4) after the mud is discharged, distributing the material, and entering the next working cycle.
The lifting device 4-8 of the mud supporting plate comprises: the device comprises a mud supporting plate 3-1, a lifting driving device 3-2, a lifting driving device guiding protective cylinder 3-3 and a lifting driving device mounting seat 3-4; the upper end of the lifting driving device 3-2 is connected with a mud supporting plate 3-1, the outer wall of the lifting driving device 3-2 is connected with a lifting driving device guide protective cylinder 3-3 in a sliding manner, and the lifting driving device guide protective cylinder 3-3 penetrates out of the squeezing cage from the lower end of the squeezing cage; the lower part of the lifting driving device 3-2 is connected with a lifting driving device mounting seat 3-4, and the lifting driving device mounting seat 3-4 is arranged on a support of the lifting device.
The distributing device 4-5 is arranged on the distributing mud discharging moving frame 4-1 and comprises: the cloth mud discharging frame comprises a cloth mud discharging frame driving device 4-2, a temporary storage device 4-3, a blanking belt conveyor 4-4, a cloth pressing device 4-5, a cloth rolling belt conveyor 4-6, a mud scraping device 4-7, a movable limiting block 4-8 and a cloth rack 4-9;
a moving frame guide rail is arranged on the upper end surface of the cloth rack 4-9, and two moving limit blocks 4-8 are respectively arranged at two ends of the moving frame guide rail and connected to the cloth rack 4-9; the cloth discharging moving frame 4-1 rolls on the moving frame guide rail; a short joint 4-2-4 is fixed on the bottom surface of the cloth mud discharging moving frame 4-1, a cloth mud discharging frame driving device 4-2 is connected between the short joint 4-2-4 and the cloth frame 4-9, and the cloth mud discharging frame driving device 4-2 is positioned at one end of the bottom surface of the cloth frame 4-9; the lower end of the temporary storage device 4-3 is provided with a blanking belt conveyor 4-4 and a cloth rolling belt conveyor 4-6, and a cloth pressing device 4-5 and a mud scraping device 4-7 are arranged between the blanking belt conveyor 4-4 and the cloth rolling belt conveyor 4-6.
The mud discharging device 4-6 is arranged on the cloth mud discharging moving frame 4-1 and comprises: 5-1 parts of filter cloth rollers, 5-2 parts of filter cloth carrier rollers, 5-3 parts of filter cloth tensioning devices and 5-4 parts of cloth rolling driving devices; the cloth rolling driving device 5-4 is connected with the filter cloth roller 5-1, and the cloth rolling driving device 5-4 drives the filter cloth roller 5-1 to operate; the filter cloth carrier roller 5-2 is spanned on the filter cloth roller 5-1 and is connected on the cloth mud discharging moving frame 4-1, and the end part of the cloth mud discharging moving frame 4-1 is connected with a filter cloth tensioning device 5-3; the filter cloth is pulled out from the lower end of the filter cloth roller 5-1, bypasses the filter cloth tensioning device 5-3 and passes through the upper end surface of the filter cloth roller 5-2 to reach the distributing device 4. The cloth rolling driving device 5-4 is a hydraulic driving device; or a pneumatic driving device; or an electric drive.
The method based on the pulping and dewatering device comprises the following steps:
step 1, slurrying and impurity removing of coal slime: conveying the coal slime to a paste slurry preparation machine 1-2 to prepare coal slime slurry, then conveying the coal slime slurry to a vibrating screen, and separating the coal slime slurry from impurities by the vibrating screen;
step 2, breaking the wall of the coal slime: pressurizing and breaking the walls of the coal slurry and breaking the walls of the grating, and conveying the coal slurry subjected to double wall breaking into squeezing and dewatering equipment;
step 3, coal slime dehydration: distributing the coal slime slurry into a filter barrel through a distributing machine, and then placing the filter barrel under a press machine; the press machine carries out filter pressing on the coal slurry in the filter vat, and the mud discharging device clears the coal slurry after filter pressing out from the filter vat.
The specific steps of the step 1 are as follows:
step 1-1, conveying coal slime to a paste preparation machine 1-2 through a feeding device;
step 1-2, adding a proper amount of water into the coal slime in the paste slurry preparation machine 1-2, wherein the ratio of the coal slime to the water is as follows: finally blending to the range of 30-35% of water in the coal slime;
step 1-3, starting a paste preparation machine 1-2, and crushing, stirring and matching the coal slime and water by using a stirring blade of the paste preparation machine 1-2 to prepare a coal slime paste body;
step 1-4, feeding the coal slime paste into a 1-3 vibrating screen through a discharge hole of a paste preparation machine 1-2;
step 1-5, vibrating and sieving the coal slime paste by using a vibrating screen, allowing the coal slime paste to flow into a coal slime storage pool below through a screen, and screening out large impurities on the screen;
and (1) feeding the coal slime paste entering the coal slime pool storage pool into a wall breaking machine through a hydraulic plunger pump.
The specific steps of the step 2 are as follows:
step 2-1, conveying the coal slime paste into a hydraulic plunger pump 1;
step 2-2, starting the hydraulic plunger pump 1, enabling the hydraulic plunger pump 1 to reciprocate, and repeatedly pressurizing and releasing the coal slime paste; pressurizing and breaking the wall of the coal slime paste;
step 2-3, conveying the pressurized coal slime paste subjected to wall breaking into a grating wall breaking device 7, and performing grating wall breaking on the coal slime paste by the grating wall breaking device 7;
and 2-4, conveying the coal slime paste subjected to pressurization wall breaking and grid wall breaking double wall breaking to squeezing dehydration equipment through a squeezing pipeline 9 connected with a grid wall breaking device 7.
Step 3-1, distributing the coal slime paste, which comprises the following specific steps:
step 3-1-1, conveying the coal slime paste subjected to the wall breaking process into a hopper of a distributing device;
3-1-2, starting the distributing device, enabling the distributing and mud discharging moving frame to do reciprocating motion, and uniformly paving the coal slime paste in the pressing cage by a distributing belt of the distributing device;
3-1-3, in the material distribution process, slowly dropping the mud supporting plate in the pressing cage until the material distribution process is finished;
step 3-2, carrying out filter pressing on the coal slime paste, and specifically comprising the following steps:
3-2-1, after the material distribution is finished, pushing the pressing cage into a press by a pressing cage pushing device;
step 3-2-2, starting a press machine, and performing filter pressing on the coal slime paste in the pressing cage by the press machine;
3-2-3, after the filter pressing is finished, lifting a pressure head of the press machine, and stopping working;
3-3, unloading the mud cakes, which comprises the following specific steps:
3-3-1, after filter pressing is finished, pulling the squeezing cage back to a mud discharging station by a squeezing cage pushing device;
3-3-2, starting a mud discharging device, taking out the filter cloth and the filter-pressed mud cake from the squeezing cage, and discharging the filter cloth and the filter-pressed mud cake into a mud discharging hopper;
and 3-3-3, in the mud discharging process, slowly lifting the mud supporting plate in the pressing cage until the mud discharging process is finished.
Claims (5)
1. The utility model provides a coal slime slurrying dewatering device which characterized by: the method comprises the following steps: the device comprises a pulping and impurity removing device, a storage device, a pumping wall breaking device and a dewatering device; the pulping and impurity removing device, the storage device, the wall breaking device and the dehydration device are sequentially connected through a chute and a conveying pipeline;
the pulping impurity removing device comprises: the system comprises coal slime conveying equipment, a paste slurry preparation machine and a vibrating screen; the discharge end of the coal slime conveying equipment is located at a feeding port of the paste slurry preparation machine, and a discharge port of the paste slurry preparation machine is located above the vibrating screen.
2. The coal slime pulping and dewatering device as recited in claim 1, wherein: the pumping wall breaking device comprises: pumping equipment and wall breaking equipment; the output port of the pumping equipment is connected with the wall breaking equipment through a wall breaking pipeline, and the output port of the wall breaking equipment is connected with a squeezing pipeline; pumping equipment performs pressurizing and releasing reciprocating motion to perform pressurizing and wall breaking on the coal slime; adopting a grille to break the wall of the coal slime by wall breaking equipment; pumping a wall breaking device to pressurize the coal slime and perform double wall breaking on the coal slime by using a grating; the coal slime through dual broken wall is carried general dewatering equipment that squeezes through the pipeline of squeezing that is connected with broken wall equipment, squeezes the processing to the coal slime in general dewatering equipment that squeezes.
3. The coal slime slurrying and dewatering device of claim 1, wherein: the dehydration device comprises: the device comprises an equipment frame, a press machine, a squeezing cage, a cloth mud discharging moving frame, a cloth device, a mud discharging device, a squeezing cage pushing device and a mud supporting plate lifting device;
the material distributing and discharging moving frame is arranged on the equipment frame, the material distributing device is arranged on the material distributing and discharging moving frame, a feeding position of the pressing cage is arranged below the material distributing device, and the material distributing device runs in a reciprocating mode across the upper portion of the feeding position of the pressing cage; the mud discharging device is connected to the equipment frame and is positioned at one end of the cloth mud discharging moving frame, one end of the cloth mud discharging moving frame is provided with a squeezing cage, and the squeezing cage is positioned at the other end of the equipment frame; the squeezing cage pushing device is arranged on a foundation at the bottom of the equipment frame; one end of the squeezing cage pushing device is connected with a squeezing cage hydraulic cylinder, the other end of the squeezing cage pushing device is connected with a press machine, and a mud supporting plate lifting device is arranged on the bottom surface of the squeezing cage pushing device at the feeding position of the squeezing cage; the squeezing cage is arranged on a track of the squeezing cage pushing device, and a squeezing cage hydraulic cylinder of the squeezing cage pushing device drives the squeezing cage to move back and forth on the track of the squeezing cage pushing device and move between the position of the squeezing cage and the press machine.
4. The coal slime slurrying and dewatering device of claim 1, wherein: the vibrating screen comprises: one of a linear vibrating screen, a drum screen, a mining vibrating screen, a straight discharging screen or a filtering screen.
5. The coal slime slurrying and dewatering device as recited in claim 2, wherein: the pumping equipment is a hydraulic plunger pump; or the following steps: one of a double-cylinder cone valve plunger pump, a single-cylinder cone valve plunger pump, an S-shaped swing plunger pump and a single-cylinder plunger pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222446365.XU CN218115250U (en) | 2022-09-16 | 2022-09-16 | Coal slime slurrying dewatering device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222446365.XU CN218115250U (en) | 2022-09-16 | 2022-09-16 | Coal slime slurrying dewatering device |
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| CN218115250U true CN218115250U (en) | 2022-12-23 |
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