CN115745118B - Pretreatment system and method for pulping waste liquid - Google Patents
Pretreatment system and method for pulping waste liquid Download PDFInfo
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- CN115745118B CN115745118B CN202211505958.7A CN202211505958A CN115745118B CN 115745118 B CN115745118 B CN 115745118B CN 202211505958 A CN202211505958 A CN 202211505958A CN 115745118 B CN115745118 B CN 115745118B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a pretreatment system and a pretreatment method of pulping waste liquid, which mainly relate to the technical field of pulping waste liquid, and comprise a stirring frame, wherein a plurality of sampling pipes are arranged in the stirring frame, the sampling pipes are arranged in reaction cylinders and have different heights, a sampling assembly is arranged on an upper cover, the sampling assembly can be communicated with the tail ends of the sampling pipes with different heights, a water outlet plate is arranged in a barrel body, an opening and closing door is rotatably arranged on the water outlet plate, a bottom ring is fixedly arranged on a base, a left scraping plate and a right scraping plate are arranged in the reaction cylinder, a gear assembly is further arranged on the left scraping plate, an arc-shaped frame is arranged on the left scraping plate, a connecting frame is connected on the opening and closing door, a supporting plate is arranged on the water outlet plate, the connecting frame is slidably arranged on the supporting plate, a buckle is arranged below the connecting frame, a ball rod is hinged on the connecting frame, the ball rod is hinged with a moving block, and the moving block is slidably arranged on the supporting frame; the invention can perform layered sampling on the high-concentration waste liquid of the machine pulp, can reduce COD of the high-concentration waste liquid of the machine pulp, and can rapidly treat sediments.
Description
Technical Field
The invention mainly relates to the technical field of pulping waste liquid, in particular to a pretreatment system and a pretreatment method of pulping waste liquid.
Background
The high-concentration waste liquid extruded by the slurry after bleaching of the chemimechanical pulp through the screw extruder is mainly sent to a sewage treatment plant or alkali recovery for treatment. As the COD is up to over 20000mg/L, the biochemical treatment effluent of the sewage treatment plant is easy to be unqualified, and huge pressure is brought to a sewage treatment system, so that a system capable of treating chemical-mechanical pulp waste liquid is urgently needed, and the pressure of the sewage treatment plant is relieved.
Chemical oxygen demand COD (ChemicalOxygenDemand) is the measure of the amount of reducing species in a water sample that need to be oxidized chemically. Oxygen equivalent of substances (typically organic substances) that can be oxidized by strong oxidants in wastewater, wastewater treatment plant effluent and contaminated water. In the study of river pollution and industrial wastewater properties and in the operation management of wastewater treatment plants, it is an important and rapidly measurable organic pollution parameter, often expressed by the symbol COD.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned problems, the present invention needs to provide a pretreatment system for pulping waste liquid, which can treat the high-concentration waste liquid of chemical pulp, add aluminum salt and cationic polyacrylamide into the high-concentration waste liquid of chemical pulp, and perform layered sampling on the high-concentration waste liquid of chemical pulp, so as to reduce the COD of the high-concentration waste liquid of chemical pulp, and also can rapidly treat sediments.
A second object of the present invention is to provide a method for pretreating pulping waste.
(II) technical scheme
Aiming at the technical problems, the invention provides a pretreatment system of pulping waste liquid, which comprises a treatment mechanism, wherein the treatment mechanism comprises a reaction cylinder, the reaction cylinder comprises an upper cover, a barrel body and a base, the upper cover is fixedly connected, a stirring frame is rotatably arranged on the upper cover, a plurality of sampling pipes are arranged in the stirring frame, the heights of the plurality of sampling pipes arranged in the barrel body are different, and one ends of the plurality of sampling pipes positioned outside the barrel body are positioned in the same plane; the base is provided with a liquid outlet and a solid outlet; the upper cover is provided with a sampling assembly which is used for communicating with the tail ends of sampling pipes with different heights to perform layered sampling; a water outlet plate is arranged in the barrel body, an opening and closing door is rotatably arranged on the water outlet plate, a sealing plate is arranged below the water outlet plate, a bottom ring is fixedly arranged on the base, the sealing plate is slidably arranged in a space formed by the bottom ring, and the sealing plate is used for releasing liquid after being lowered; a left scraping plate is rotatably arranged on the base, a right scraping plate is rotatably arranged on the water outlet plate, the two scraping plates are rotatably connected, a gear assembly is arranged on the base, and the gear assembly drives the left scraping plate and the right scraping plate to clean sediment; the left scraper blade is last fixed mounting has the arc frame, and fixed mounting has the link on the door that opens and shuts, and fixed mounting has the backup pad on the play water board, and link slidable mounting is provided with the buckle in the backup pad in the below of link, and the ball articulates on the link has the club, and club and movable block ball hinge, and movable block slidable mounting is on the support frame, and when the arc rotated, it descends to drive the link, and the arc still will drive the movable block and slide, under the effect of club, opens and shuts the door and will open the discharge precipitate.
Further, the sampling assembly comprises a water pump assembly, a sampling bent pipe is connected to the water pump assembly, a sampling head is fixedly installed on the sampling bent pipe, the sampling head is fixedly installed on a sampling inner ring, the sampling inner ring is slidably installed on a sampling outer ring, the sampling outer ring is rotatably installed on a sampling lifting plate, the sampling lifting plate is fixedly installed at the movable end of a sampling cylinder, a sampling gear is fixedly installed on the sampling outer ring, and a sampling upper clamping block is fixedly installed on the sampling outer ring; the incomplete gear is fixedly arranged on the output shaft of the small motor, the incomplete gear and the sampling gear form gear matching to drive the sampling head to rotate, and the sampling cylinder drives the sampling head to be inserted into the sampling tube to form communication.
Further, the sampling tube include first sampling tube, fourth sampling tube, third sampling tube, second sampling tube, four sampling tubes pass through inside retainer plate fixed mounting in the stirring frame, four sampling tubes are close to the one end that the fixture block was gone up in the sample and are in the coplanar, and the one end that every sampling tube was close to the fixture block on the sample is equipped with the concave surface.
Further, the left scraping plate comprises a left scraping rod, the left scraping rod is fixedly arranged on a left rotating shaft, the left rotating shaft is rotatably arranged on the base, a tape winding shell is fixedly arranged on the left scraping rod, elastic roll steel is fixedly arranged in the tape winding shell, a winding drum is fixedly arranged on the elastic roll steel, the winding drum is rotatably arranged in the tape winding shell, a scraping belt is arranged on the winding drum, and the other end of the scraping belt is arranged on the right scraping plate.
Further, the right scraping plate comprises a right scraping rod, the right scraping plate is fixedly arranged on a right rotating shaft, the right rotating shaft is rotatably arranged on the water outlet plate, the right scraping rod is fixedly provided with another tape winding shell, the tape winding shell on the right scraping rod is identical to the tape winding shell on the left scraping rod in structure, a winding drum and an elastic coil steel which are arranged in the right scraping rod are identical in structure, a scraping belt passes through the right rotating shaft, and the other end of the scraping belt is fixedly arranged on the winding drum of the right scraping rod; the right rotating shaft is rotationally connected with the left rotating shaft, and the right rotating shaft and the left rotating shaft are driven by the gear assembly.
Further, the gear assembly comprises a right driving gear, the right driving gear is fixedly arranged on the right rotating shaft, and the left driving gear is fixedly arranged on the left rotating shaft; the main motor is fixedly arranged on the base, a main gear is fixedly arranged at the output end of the main motor, the main gear and the left driving gear form gear cooperation to drive the left rotating shaft to rotate, the main gear and the right driven gear form gear cooperation, and the right driven gear and the right driving gear form gear cooperation; when the left rotating shaft rotates, the arc-shaped plate is driven to rotate.
Further, the arc-shaped plate comprises a sector plate, the sector plate is fixedly arranged on the left rotating shaft, a boss is fixedly arranged on the sector plate, and when the sector plate rotates, the buckle is extruded and can loosen the limit on the connecting frame.
Further, the buckle include the telescopic link, telescopic link fixed mounting is on the base, fixed mounting has the lift fixture block on the telescopic link, the cover is equipped with the spring between telescopic link and the lift fixture block, is provided with first inclined plane on the lift fixture block, the top of lift fixture block is provided with the inclined plane, after sector plate and lift fixture block contact, under the effect of first inclined plane, extrusion lift fixture block descends, the lift fixture block will loosen the restriction to the link.
Further, the link include the horizon bar, horizon bar and club ball are articulated, horizon bar fixed mounting is on the arc pole, arc pole fixed mounting is on opening and shutting the door, the cover is equipped with the spring on the arc pole, the one end fixed mounting of spring is on opening and shutting the door, the other end fixed mounting is in the backup pad, be provided with the opening on the horizon bar, the lift fixture block will slide in the opening of horizon bar.
The pretreatment method of the pulping waste liquid adopts the pretreatment system of the pulping waste liquid, and comprises the following steps:
adding dissolving machine slurry into a reaction cylinder, adding polyaluminium chloride and polyacrylamide CPAM, fully stirring the mixture by using a stirring frame, and settling;
step two, the sampling assembly is communicated with the tail ends of sampling pipes with different heights, layered sampling is carried out on the chemical-mechanical pulp high-concentration waste liquid in the reaction cylinder, and the COD value of the chemical-mechanical pulp high-concentration waste liquid is detected;
starting a cylinder on the sealing plate to drive the sealing plate to descend, and discharging waste liquid from the water outlet plate to release the high-concentration waste liquid of the chemical sludge by utilizing a liquid outlet;
step four, starting a gear assembly to drive a left scraping plate and a right scraping plate to scrape sediment on the water plate; the arc-shaped frame is utilized to drive the connecting frame to slide, so that the opening and closing door is opened, and sediment is discharged from the solid outlet.
Compared with the prior art, the invention has the beneficial effects that: 1. the stirring frame is arranged, the stirring frame is driven to rotate in a gear transmission mode, so that the mixture in the reaction cylinder can be fully stirred, four sampling tubes with different distances from the bottom of the reaction cylinder are arranged in the stirring frame, and after stirring, the sampling tubes in the stirring frame can be used for carrying out layered sampling; 2. the invention is provided with the sampling assembly, the sampling assembly comprises the sampling head, the sampling cylinder drives the sampling head to descend and form communication with the sampling pipe, the small motor and the incomplete gear can move to the upper part of the next sampling pipe along the rotation direction of the sampling head, and automatic layered sampling is completed, so that people can more accurately test the COD value of the high-concentration waste liquid of the machine pulp; 3. according to the invention, the water outlet plate is arranged in the barrel body, the sealing plate is arranged below the water outlet plate, the bottom ring is fixedly arranged on the base, and the waste liquid can be automatically released by the descending of the sealing plate; 4. the invention also provides a left scraping plate and a right scraping plate, the gear assembly drives the left scraping plate and the right scraping plate to rotate simultaneously to scrape sediment on the water outlet plate, in order to facilitate the sediment cleaning, the invention also provides an opening and closing door which is fixedly connected with the connecting frame, the connecting frame is arranged to be slidably mounted on the supporting plate, and a buckle is arranged below the connecting frame, and only when the left scraping plate cleans the sediment, the buckle is pushed by the arc-shaped frame, so that the buckle releases the limit on the connecting frame, and finally the opening and closing door is opened to clean the sediment by matching with the scraping plate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic view of a first partial angle of the processing mechanism according to the present invention.
FIG. 3 is a schematic view of a portion of a second angle of the treatment mechanism of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3 at A1.
Fig. 5 is a partial side view of the treatment mechanism of the present invention.
FIG. 6 is a cross-sectional view taken at A-A in FIG. 5.
Fig. 7 is a partially enlarged schematic view of fig. 6 at A2.
FIG. 8 is a schematic view of a portion of a third angle of the processing mechanism of the present invention.
FIG. 9 is a partial fourth angular schematic view of the treatment mechanism of the present invention.
FIG. 10 is a schematic view of a portion of a fifth angle of the treatment mechanism of the present invention.
FIG. 11 is a schematic view of a portion of a sixth angle of the processing mechanism of the present invention.
FIG. 12 is a schematic view of a portion of a seventh angle of the processing mechanism of the present invention.
Fig. 13 is a cross-sectional view at B-B in fig. 12.
Fig. 14 is a cross-sectional view taken at C-C of fig. 12.
Fig. 15 is a partially enlarged schematic view of fig. 13 at A3.
Fig. 16 is a partially enlarged schematic illustration at A4 in fig. 14.
Fig. 17 is a partial schematic view of the left and right squeegees of the present invention.
Fig. 18 is an overall side view of the present invention.
Fig. 19 is a sectional view taken at D-D in fig. 18.
Reference numerals: 1-a treatment mechanism; 101-an upper cover; 102-a barrel body; 103-a base; 104-reactant wells; 105-master solution well; 106-a sampling pump; 107-incomplete gear; 108-a sampling motor; 109-sampling elbow; 110-sampling lifting plate; 111-a stirring motor; 112-stirring gear; 113-small motor; 114-a stirring frame; 115-a first sampling tube; 116-a fourth sampling tube; 117-a third sampling tube; 118-a second sampling tube; 119-sampling cylinder; 120-sampling an outer ring; 121-a sampling gear; 122-sampling an upper clamping block; 123-sampling a lower clamping block; 124-an inner retainer ring; 125-sampling head; 126-sampling an inner ring; 127-water outlet plate; 128-an opening and closing door; 129-solids outlet; 130-a liquid outlet; 131-bottom ring; 132-sealing plate; 133-a tape housing; 134-left scraping bar; 135-sector plates; 136-boss; 137-scraping belt; 138-right scraper bar; 139-right driven gear; 140-main gear; 141-a main motor; 142-left rotating shaft; 143-left drive gear; 144-right drive gear; 145-right spindle; 146-arc rod; 147-supporting plate; 148-supporting frames; 149-telescopic rod; 150-lifting a clamping block; 151-a first bevel; 152-horizontal bars; 153-cue; 154-moving block; 155-vertical slots; 156-reel; 157-spring coil steel.
Detailed Description
The invention is further described below in connection with specific embodiments, which are presented by way of illustration of exemplary embodiments of the invention and illustration of the invention, but not by way of limitation.
Example 1: the pretreatment system for pulping waste liquid as shown in fig. 1-19 comprises a treatment mechanism 1, wherein the treatment mechanism 1 comprises a reaction cylinder, the reaction cylinder comprises an upper cover 101, a barrel body 102 and a base 103, the upper cover 101 is fixedly connected with the reaction cylinder, a main solution hole 105 is fixedly arranged on the upper cover 101, reactant holes 104 are fixedly arranged on two sides of the main solution hole 105, the main solution hole 105 is used for inputting chemical pulp into the reaction cylinder, the two reactant holes 104 are respectively used for placing polyaluminium chloride (PAC) and Cationic Polyacrylamide (CPAM), and the invention can also be used for changing polyaluminium chloride (PAC) into aluminum sulfate.
The upper cover 101 is rotationally provided with a stirring frame 114, the stirring frame 114 is composed of a hollow pipe and a plurality of blades, the hollow pipe is rotationally arranged on the upper cover 101, a gear is fixedly arranged on the hollow pipe and forms gear fit with the stirring gear 112, the stirring gear 112 is fixedly arranged on an output shaft of the stirring motor 111, the stirring motor 111 is fixedly arranged on the upper cover 101, a sampling lower clamping block 123 is fixedly arranged on the hollow pipe, a plurality of inner fixing rings 124 are fixedly arranged in the hollow pipe, the heights of the inner fixing rings 124 are different, and a plurality of sampling pipes are fixedly arranged in the hollow pipe of the stirring frame 114.
Be provided with the play water board 127 in ladle body 102, rotate on the play water board 127 and install the door 128 that opens and shuts, the below of play water board 127 is provided with closing plate 132, is provided with the plug on the bottom ring 131, and the plug is used for plugging up the filtration pore on the play water board 127, and fixed mounting has bottom ring 131 on the base 103, and closing plate 132 slidable mounting is in the space that bottom ring 131 formed, and fixed mounting has backup pad 147 on the play water board 127.
The base 103 is provided with a liquid outlet 130 and a solid outlet 129; the liquid outlet 130 is used for releasing liquid, the solid outlet 129 is used for discharging fixed sediment, an inclined plate is arranged in the solid outlet 129 and fixedly arranged on the base 103, and the inclined plate is convenient for discharging the solid sediment.
The sampling tube includes first sampling tube 115, fourth sampling tube 116, third sampling tube 117, second sampling tube 118, and four sampling tubes pass through inside retainer plate 124 fixed mounting in stirring frame 114, and four sampling tubes are close to the one end that the fixture block 122 was in the coplanar on the sample, and the one end that the fixture block 122 was gone up to the sample is close to every sampling tube is equipped with the concave surface, and the concave surface is convenient for the insertion of sampling head 125.
The sampling assembly comprises a water pump assembly, the water pump assembly comprises a sampling pump 106, the sampling pump 106 is fixedly arranged on an upper cover 101, a sampling motor 108 is arranged on the sampling pump 106, the sampling motor 108 supplies power to the sampling pump 106, a sampling elbow pipe 109 is fixedly arranged on the sampling pump 106, a water outlet is arranged on the sampling pump 106 and communicated with a detection device or a storage device, a sampling head 125 is fixedly arranged on the sampling elbow pipe 109, the sampling head 125 is fixedly arranged on a sampling inner ring 126, a spring is arranged between the sampling inner ring 126 and a sampling outer ring 120, one end of the spring is fixedly arranged on the sampling inner ring 126, the other end of the spring is fixedly arranged on the sampling outer ring 120, the sampling inner ring 126 is slidably arranged on the sampling outer ring 120, the sampling outer ring 120 is rotatably arranged on a sampling lifting plate 110, the sampling lifting plate 110 is fixedly arranged at the movable end of a sampling cylinder 119, a sampling gear 121 is fixedly arranged on the sampling outer ring 120, and a sampling upper clamping block 122 is fixedly arranged on the sampling outer ring 120. The incomplete gear 107 is fixedly arranged on the output shaft of the small motor 113, the incomplete gear 107 and the sampling gear 121 form gear matching, the sampling head 125 is intermittently driven to rotate, and the sampling cylinder 119 drives the sampling head 125 to be inserted into a sampling tube to form communication.
The left scraper blade includes left scraper bar 134, and left scraper bar 134 fixed mounting is on left pivot 142, and left pivot 142 rotates to be installed on base 103, and fixed mounting has winding shell 133 on the left scraper bar 134, and fixed mounting has elasticity coil steel 157 in the winding shell 133, and fixed mounting has reel 156 on the elasticity coil steel 157, and reel 156 rotates to be installed in winding shell 133, is provided with on the reel 156 and scrapes the area 137, scrapes the other end setting of area 137 on the right scraper blade.
The right scraping plate comprises a right scraping rod 138, the right scraping rod 138 is fixedly arranged on a right rotating shaft 145, the right rotating shaft 145 is rotatably arranged on the water outlet plate 127, the right scraping rod 138 is fixedly provided with another winding shell 133, the winding shell 133 on the right scraping rod 138 has the same structure as the winding shell 133 on the left scraping rod 134, a winding drum 156 and an elastic winding steel 157 which are arranged inside have the same structure, the scraping belt 137 passes through the right rotating shaft 145, and the other end of the scraping belt 137 is fixedly arranged on the winding drum 156 of the right scraping rod 138; the right rotating shaft 145 is rotatably connected with the left rotating shaft 142, and the right rotating shaft 145 and the left rotating shaft 142 are driven by a gear assembly.
The gear assembly comprises a right driving gear 144, the right driving gear 144 is fixedly arranged on a right rotating shaft 145, and a left driving gear 143 is fixedly arranged on a left rotating shaft 142; the main motor 141 is fixedly arranged on the base 103, a main gear 140 is fixedly arranged at the output end of the main motor 141, the main gear 140 and the left driving gear 143 form gear fit to drive the left rotating shaft 142 to rotate, the main gear 140 and the right driven gear 139 form gear fit, and the right driven gear 139 and the right driving gear 144 form gear fit; when the left rotating shaft 142 rotates, the arc plate is driven to rotate.
The arc plate includes sector plate 135, and sector plate 135 fixed mounting is on left pivot 142, and fixed mounting has boss 136 on the sector plate 135, and when sector plate 135 rotated, sector plate 135 would extrude the buckle, and the buckle would loosen the restriction to the link.
The buckle includes telescopic link 149, telescopic link 149 fixed mounting is on base 103, telescopic link 149 is last fixed mounting has lift fixture block 150, the cover is equipped with the spring between telescopic link 149 and the lift fixture block 150, the one end fixed mounting of spring is on lift fixture block 150, the other end fixed mounting is on base 103, be provided with first inclined plane 151 on the lift fixture block 150, the top of lift fixture block 150 is provided with the inclined plane, sector plate 135 will extrude the first inclined plane 151 on the lift fixture block 150, make lift fixture block 150 descend, lift fixture block 150 will loosen the restriction to the link.
The link includes horizontal pole 152, and horizontal pole 152 is articulated with the club 153 ball, and horizontal pole 152 fixed mounting is on arc pole 146, and arc pole 146 fixed mounting is on opening and shutting door 128, and the cover is equipped with the spring on the arc pole 146, and the one end fixed mounting of spring is on opening and shutting door 128, and the other end fixed mounting is on backup pad 147, is provided with vertical groove 155 on the horizontal pole 152, and lift fixture block 150 slidable mounting is in vertical groove 155.
The ball arm 153 is ball-hinged to the moving block 154, the moving block 154 is slidably mounted on the support frame 148, and the support frame 148 is fixedly mounted on the base 103.
The working principle of the invention is as follows: chemical slurry is input into the reaction cylinder from the main solution hole 105, aluminum chloride and Cationic Polyacrylamide (CPAM) are respectively added into the two reactant holes 104, then the stirring motor 111 is started, the stirring motor 111 drives the stirring gear 112 to rotate, and the stirring gear 112 drives the gear on the stirring frame 114 to rotate, so that the stirring frame 114 fully stirs the mixture in the reaction cylinder.
After stirring is completed, a while is waited, in order to test the COD value of the high-concentration waste liquid of the chemical mechanical pulp, the treated high-concentration waste liquid of the chemical mechanical pulp is subjected to layered sampling, at this time, the mixture in the reaction cylinder is required to be sampled, the initial state of the sampling head 125 is just above the first sampling tube 115, at this time, the movable end of the sampling cylinder 119 is started to shrink, the movable end of the sampling cylinder 119 drives the sampling lifting plate 110 to descend, the sampling lifting plate 110 carries the sampling outer ring 120, the sampling gear 121 and the sampling upper clamping block 122 to descend, the sampling head 125 is inserted into the first sampling tube 115, the sampling upper clamping block 122 is clamped into the sampling lower clamping block 123, when the sampling head 125 is inserted into the first sampling tube 115, the sampling inner ring 126 slides in the sampling outer ring 120, the spring is compressed, then the sampling pump 106 is started, the mixture in the reaction cylinder at the position of the first sampling tube 115 is extracted, and the water outlet on the sampling pump 106 is connected with other devices, so that the mixture is collected.
After the collection is completed, the sampling pump 106 stops working, the movable end of the sampling cylinder 119 extends out, the sampling head 125 is separated from the first sampling tube 115, the small motor 113 is started to drive the incomplete gear 107 to rotate, the incomplete gear 107 drives the sampling gear 121 to rotate, the sampling head 125 rotates to the upper part of the next sampling tube, the steps are repeated again, for example, the second sampling tube 118 is used for collection, the third sampling tube 117 is used for collection, the fourth sampling tube 116 is used for collection, and the COD value of the chemical-mechanical pulp high-concentration waste liquid is analyzed through stratified sampling.
After the sampling is completed, the high-concentration waste liquid of the chemical pulp is required to be released, the cylinder below the sealing plate 132 is started to drive the sealing plate 132 to descend, the filtering holes of the water outlet plate 127 are opened after the sealing plate 132 descends, meanwhile, the sealing plate 132 and the bottom ring 131 form a sealed space, and the solution flows into the base 103 from the water outlet plate 127 and is discharged from the liquid outlet 130.
After all the solution is discharged, some precipitate can be reserved on the water outlet plate 127, the cylinder of the sealing plate 132 needs to be started to reset the sealing plate 132, at the moment, the main motor 141 needs to be started, the main motor 141 drives the main gear 140 to rotate, the main gear 140 drives the left driving gear 143 to rotate, so that the left rotating shaft 142 rotates, and the left rotating shaft 142 drives the left scraping rod 134 to rotate when rotating; the main gear 140 drives the right driven gear 139 to rotate, the right driven gear 139 drives the right driving gear 144 to rotate, the right driving gear 144 drives the right rotating shaft 145 to rotate, the right rotating shaft 145 drives the right scraping rod 138 to rotate, the right scraping rod 138 and the left scraping rod 134 are opposite in rotating direction and are close to each other, and the scraping belt 137 is utilized to scrape sediment on the surface of the water plate 127 and send the sediment to the position of the opening and closing door 128.
When the left rotating shaft 142 rotates, the sector plate 135 is driven to rotate, the sector plate 135 rotates to be close to the lifting clamping block 150, when the sector plate 135 contacts with the first inclined surface 151 on the lifting clamping block 150, the sector plate 135 extrudes the lifting clamping block 150 to descend under the continuous rotation of the sector plate 135, the lifting clamping block 150 descends and withdraws from the vertical groove 155, the horizontal rod 152 is released from restriction, when the boss 136 on the sector plate 135 contacts with the moving block 154, the moving block 154 is driven to slide on the supporting frame 148, the horizontal rod 152 is driven to slide under the action of the club 153, the horizontal rod 152 is driven to slide after the horizontal rod 152 slides, the arc rod 146 drives the opening and closing door 128 to rotate, the opening and closing door 128 contacts with the inclined plate in the solid outlet 129 after rotating, and scraped sediment is discharged from the solid outlet 129.
After the sediment is discharged, the main motor 141 is started to rotate reversely, the left scraping rod 134 and the right scraping rod 138 rotate reversely to reset, the boss 136 is separated from contact with the moving block 154, the opening and closing door 128 is reset under the action of the spring on the arc-shaped rod 146, the sector plate 135 is separated from contact with the lifting clamping block 150, and the lifting clamping block 150 is reset under the action of the spring on the telescopic rod 149 and is reinserted into the vertical groove 155.
Example 2: a pretreatment method of pulping waste liquid comprises the following steps:
step one, adding the chemical pulp into the barrel body 102, adding the polyaluminium chloride and the Cationic Polyacrylamide (CPAM), starting the stirring motor 111, driving the stirring frame 114 to rotate in a gear transmission mode, fully stirring the mixture by the stirring frame 114, and then settling, wherein the polyaluminium chloride is particularly suitable for reducing the solubility COD of the high-concentration waste liquid of the chemical pulp, and the Cationic Polyacrylamide (CPAM) can accelerate the settling of the waste liquid precipitate.
And secondly, the sampling head 125 in the sampling assembly is communicated with the tail ends of sampling pipes with different heights, and the water pump assembly is used for carrying out layered sampling on the high-concentration chemical pulp waste liquid in the reaction cylinder to detect the COD value of the high-concentration chemical pulp waste liquid.
And thirdly, starting an upper cylinder of the sealing plate 132 to drive the sealing plate 132 to descend, and discharging the waste liquid from the water outlet plate 127 to release the high-concentration waste liquid of the chemical slurry by utilizing the liquid outlet 130.
Step four, starting a gear assembly to drive a left scraping plate and a right scraping plate to scrape sediment on the water plate 127; the arc frame drives the buckle to release the limit on the connecting frame, and then the arc frame drives the connecting frame to slide, so that the opening and closing door 128 is opened, and sediment is discharged from the solid outlet 129.
The invention is applicable to the prior art where it is not described.
Claims (4)
1. The pretreatment system for pulping waste liquid comprises a treatment mechanism (1), wherein the treatment mechanism (1) comprises a reaction cylinder, the reaction cylinder comprises an upper cover (101), a barrel body (102) and a base (103), and the upper cover, the barrel body and the base are fixedly connected, and the pretreatment system is characterized in that a stirring frame (114) is rotatably arranged on the upper cover (101), a plurality of sampling pipes are arranged in the stirring frame (114), the heights of the sampling pipes arranged in the barrel body (102) are different, and one ends of the sampling pipes outside the barrel body (102) are positioned in the same plane; the base (103) is provided with a liquid outlet (130) and a solid outlet (129); the upper cover (101) is provided with a sampling assembly which is used for communicating with the tail ends of sampling pipes with different heights to perform layered sampling;
a water outlet plate (127) is arranged in the barrel body (102), an opening and closing door (128) is rotatably arranged on the water outlet plate (127), a sealing plate (132) is arranged below the water outlet plate (127), a bottom ring (131) is fixedly arranged on the base (103), the sealing plate (132) is slidably arranged in a space formed by the bottom ring (131), and the sealing plate (132) is used for releasing liquid after being lowered; a left scraping plate is rotatably arranged on the base (103), a right scraping plate is rotatably arranged on the water outlet plate (127), the two scraping plates are rotatably connected, a gear assembly is arranged on the base (103), and the gear assembly drives the left scraping plate and the right scraping plate to clean sediment;
an arc plate is fixedly installed on the left scraping plate, a connecting frame is fixedly installed on the opening and closing door (128), a supporting plate (147) is fixedly installed on the water outlet plate (127), the connecting frame is slidably installed on the supporting plate (147), a buckle is arranged below the connecting frame, a ball rod (153) is hinged to the connecting frame, the ball rod (153) is hinged to a moving block (154), the moving block (154) is slidably installed on a supporting frame (148), the connecting frame is driven to descend when the arc plate rotates, the moving block (154) is driven to slide by the arc plate, and sediment is discharged by opening and closing the door (128) under the action of the ball rod (153);
the left scraping plate comprises a left scraping rod (134), the left scraping rod (134) is fixedly arranged on a left rotating shaft (142), the left rotating shaft (142) is rotatably arranged on a base (103), a tape winding housing (133) is fixedly arranged on the left scraping rod (134), an elastic coil steel (157) is fixedly arranged in the tape winding housing (133), a winding drum (156) is fixedly arranged on the elastic coil steel (157), the winding drum (156) is rotatably arranged in the tape winding housing (133), a scraping belt (137) is arranged on the winding drum (156), and the other end of the scraping belt (137) is arranged on the right scraping plate;
the right scraping plate comprises a right scraping rod (138), the right scraping rod (138) is fixedly arranged on a right rotating shaft (145), the right rotating shaft (145) is rotatably arranged on a water outlet plate (127), the right scraping rod (138) is fixedly provided with another winding shell (133), the winding shell (133) on the right scraping rod (138) has the same structure as the winding shell (133) on the left scraping rod (134), a winding drum (156) arranged in the right scraping rod is identical to an elastic winding steel (157), a scraping belt (137) passes through the right rotating shaft (145), and the other end of the scraping belt is fixedly arranged on the winding drum (156) of the right scraping rod (138); the right rotating shaft (145) is rotationally connected with the left rotating shaft (142), and the right rotating shaft (145) and the left rotating shaft (142) are driven by a gear assembly;
the gear assembly comprises a right driving gear (144), the right driving gear (144) is fixedly arranged on a right rotating shaft (145), and a left driving gear (143) is fixedly arranged on a left rotating shaft (142); the main motor (141) is fixedly arranged on the base (103), a main gear (140) is fixedly arranged at the output end of the main motor (141), the main gear (140) is in gear fit with the left driving gear (143) to drive the left rotating shaft (142) to rotate, the main gear (140) is in gear fit with the right driven gear (139), and the right driven gear (139) is in gear fit with the right driving gear (144); when the left rotating shaft (142) rotates, the arc-shaped plate is driven to rotate;
the arc-shaped plate comprises a sector plate (135), the sector plate (135) is fixedly arranged on the left rotating shaft (142), a boss (136) is fixedly arranged on the sector plate (135), when the sector plate (135) rotates, the clamp buckle is extruded, and the clamp buckle releases the limit on the connecting frame;
the buckle comprises a telescopic rod (149), the telescopic rod (149) is fixedly arranged on the base (103), a lifting clamping block (150) is fixedly arranged on the telescopic rod (149), a spring is sleeved between the telescopic rod (149) and the lifting clamping block (150), a first inclined surface (151) is arranged on the lifting clamping block (150), an inclined surface is arranged at the top of the lifting clamping block (150), and after the fan-shaped plate (135) is contacted with the lifting clamping block (150), the lifting clamping block (150) is extruded to descend under the action of the first inclined surface (151), and the lifting clamping block (150) releases the limit on the connecting frame;
the connecting frame comprises a horizontal rod (152), the horizontal rod (152) is in ball joint with a ball rod (153), the horizontal rod (152) is fixedly installed on an arc-shaped rod (146), the arc-shaped rod (146) is fixedly installed on an opening and closing door (128), a spring is sleeved on the arc-shaped rod (146), one end of the spring is fixedly installed on the opening and closing door (128), the other end of the spring is fixedly installed on a supporting plate (147), an opening is formed in the horizontal rod (152), and a lifting clamping block (150) slides in the opening of the horizontal rod (152).
2. The pretreatment system of pulping waste liquid according to claim 1, wherein the sampling assembly comprises a water pump assembly, a sampling elbow pipe (109) is connected to the water pump assembly, a sampling head (125) is fixedly installed on the sampling elbow pipe (109), the sampling head (125) is fixedly installed on a sampling inner ring (126), the sampling inner ring (126) is slidably installed on a sampling outer ring (120), the sampling outer ring (120) is rotatably installed on a sampling lifting plate (110), the sampling lifting plate (110) is fixedly installed at the movable end of a sampling cylinder (119), a sampling gear (121) is fixedly installed on the sampling outer ring (120), and a sampling upper clamping block (122) is fixedly installed on the sampling outer ring (120); the incomplete gear (107) is fixedly arranged on the output shaft of the small motor (113), the incomplete gear (107) and the sampling gear (121) form gear fit to drive the sampling head (125) to rotate, and the sampling cylinder (119) drives the sampling head (125) to be inserted into the sampling tube to form communication.
3. The pretreatment system of pulping waste liquid according to claim 2, wherein the sampling tubes comprise a first sampling tube (115), a fourth sampling tube (116), a third sampling tube (117) and a second sampling tube (118), the four sampling tubes are fixedly installed in the stirring frame (114) through an internal fixing ring (124), one ends of the four sampling tubes, which are close to the sampling upper clamping block (122), are on the same plane, and one end of each sampling tube, which is close to the sampling upper clamping block (122), is provided with a concave surface.
4. A method for pretreating a pulping waste liquid, characterized by using the pretreatment system for pulping waste liquid according to any one of claims 1 to 3, comprising the steps of:
adding dissolving machine slurry into a reaction cylinder, adding polyaluminium Chloride and Polyacrylamide (CPAM), fully stirring the mixture by using a stirring frame (114), and settling;
step two, the sampling assembly is communicated with the tail ends of sampling pipes with different heights, layered sampling is carried out on the chemical-mechanical pulp high-concentration waste liquid in the reaction cylinder, and the COD value of the chemical-mechanical pulp high-concentration waste liquid is detected;
starting a cylinder on the sealing plate (132) to drive the sealing plate (132) to descend, and discharging waste liquid from the water outlet plate (127) to release high-concentration waste liquid of the chemical machine slurry by utilizing the liquid outlet (130);
step four, starting a gear assembly to drive a left scraping plate and a right scraping plate to scrape sediment on a water plate (127); the connecting frame is driven to slide by the arc plate, so that the opening and closing door (128) is opened, and sediment is discharged from the solid outlet (129).
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| CN116726756B (en) * | 2023-08-15 | 2023-10-24 | 福建紫金矿冶测试技术有限公司 | Sample mixing equipment for mineral sample detection and application method thereof |
| CN117232909B (en) * | 2023-11-15 | 2024-01-12 | 德州市红拳医疗器械有限公司 | Urine test sampling device |
| CN117282328B (en) * | 2023-11-24 | 2024-02-23 | 广东晨奇文具实业有限公司 | Pen and ink mixing equipment |
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