CN114534351A - Compact high-efficiency energy-saving concentration equipment - Google Patents
Compact high-efficiency energy-saving concentration equipment Download PDFInfo
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- CN114534351A CN114534351A CN202210152513.9A CN202210152513A CN114534351A CN 114534351 A CN114534351 A CN 114534351A CN 202210152513 A CN202210152513 A CN 202210152513A CN 114534351 A CN114534351 A CN 114534351A
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- 238000009826 distribution Methods 0.000 claims abstract description 62
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 46
- 239000010935 stainless steel Substances 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 71
- 239000004744 fabric Substances 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 22
- 230000018044 dehydration Effects 0.000 description 14
- 238000006297 dehydration reaction Methods 0.000 description 14
- 229920001131 Pulp (paper) Polymers 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004537 pulping Methods 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The invention discloses compact high-efficiency energy-saving concentration equipment, which comprises a fixed rack device, belongs to the field of papermaking machinery, and is characterized in that a rotary pulp distribution device is arranged on one side of the fixed rack device, a wedge-shaped pulp blocking and dewatering table plate device, an upper filter screen tensioning roller set, a lower filter screen tensioning roller set and an upper movable rack are arranged on one side of the rotary pulp distribution device, and the wedge-shaped pulp blocking and dewatering table plate device is arranged between the upper movable rack and the fixed rack device; the other side of the fixed rack device is fixedly provided with a rubber covered roller squeezing roller set, and the rubber covered roller squeezing roller set is sequentially connected with a pressing stainless steel squeezing roller set, a high-efficiency dewatering squeezing roller set and an upper and lower filter screen tensioning roller set in a transmission manner through an upper filter screen and a lower filter screen.
Description
Technical Field
The invention relates to a concentrating device for performing solid-liquid separation on slurry in the pulping and papermaking industry, in particular to a compact high-efficiency energy-saving concentrating device.
Background
The concentration equipment is a filtering concentration equipment, makes the slurry undergo solid-liquid separation by utilizing the linear pressure of the upper roller body and the lower roller body, and is widely applied to the papermaking industry.
This type of conventional concentrator passes through the stuff pump and pumps into the thick liquid case with the thick liquid, relies on wedge dehydration district and multichannel compression roller group to squeeze the dehydration, reaches concentrated purpose.
The conventional concentration apparatus has the following problems: the slurry inlet box cannot meet the slurry inlet concentration of 3% -12% at the same time; the high-concentration pulp inlet concentration of 10-12% cannot be met, the linear pressure of each pair of compression roller sets is low, the number of compression roller sets is large, the dewatering efficiency is low, and the pulp outlet concentration is low.
The diversified demands of the market cannot be met, and the cost-saving demand of the long-distance transportation of the dispersed slurry cannot be met, and meanwhile, the concentrating equipment has the defects of large occupied area, high running power consumption and the like; therefore, the compact high-efficiency energy-saving concentration equipment is invented to expand the application range and create value for customers.
The patent number is CN201320741646.6, the name is a utility model of a vacuum adjusting device of a thickener, the patent discloses the following technical characteristics, including a shell, the shell is provided with a feed inlet and a discharge outlet respectively, a rotating shaft is arranged in the shell, the discharge outlet is connected with a centrifugal pump through a drain pipe, the feed inlet is butted with a drain outlet of the thickener, the feed inlet is provided with a vacuum panel, the vacuum panel is fixedly connected with the rotating shaft, the vacuum panel is provided with a plurality of pulp suction holes, the pulp suction holes are distributed on the vacuum panel in a plurality of rows, and the number of the pulp suction holes in each row gradually increases from the axial direction to the outer edge direction of the vacuum panel; the vacuum panel is arranged in a fan shape, one end of the vacuum panel is fixedly connected with the rotating shaft, and the other end of the vacuum panel is fixedly connected with the shell.
The vacuum adjusting device of the thickener has simple structure and single function, and can only concentrate paper pulp with certain concentration, thereby bringing inconvenience to production.
Disclosure of Invention
The invention aims to solve the technical problem of providing a compact high-efficiency energy-saving concentration device aiming at the defects of the technical scheme, and the compact high-efficiency energy-saving concentration device has the function of wide application range and can meet the requirement of 3-12% of pulp inlet concentration.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a compact energy-efficient type concentrator, includes fixed frame device, its characterized in that: one side of the fixed frame device is provided with a rotary slurry distribution device, one side of the rotary slurry distribution device is provided with a wedge-shaped slurry blocking and dewatering chopping board device, an upper filter screen tensioning roller set, a lower filter screen tensioning roller set and an upper movable frame,
the wedge-shaped pulp blocking and dewatering chopping board device is arranged between the upper movable rack and the fixed rack device;
the other side of the fixed rack device is fixedly provided with a rubber covered roller squeezing roller set, and the rubber covered roller squeezing roller set is sequentially connected with a pressing stainless steel squeezing roller set, a high-efficiency dewatering squeezing roller set and an upper and lower filter screen tensioning roller set in a transmission manner through an upper filter screen and a lower filter screen.
The rotary slurry distribution device consists of a shell, a slurry distribution spiral and a rotary slurry distribution transmission device, wherein the slurry distribution spiral comprises a slurry distribution roller, a left variable pitch spiral and a right variable pitch spiral are arranged on the slurry distribution roller, and the spiral directions of the left variable pitch spiral and the right variable pitch spiral are opposite.
The position that is close to the casing middle part on the casing is provided with the feed inlet, and the feed inlet opening is located the initiating terminal of left displacement spiral and right displacement spiral.
The rotary slurry distribution device consists of a shell, a slurry distribution spiral and a rotary slurry distribution transmission device, wherein the slurry distribution spiral comprises 2 slurry distribution rollers which are arranged in parallel, a left variable pitch spiral and a right variable pitch spiral are arranged on the slurry distribution rollers, and the spiral directions of the left variable pitch spiral and the right variable pitch spiral are opposite; the two slurry distribution rollers rotate in opposite directions.
The pulp distribution roller is in a roller-shaped structure with a thin middle and two thick ends.
The left variable pitch helix consists of a left large-diameter helix, a left middle-diameter helix and a left small-diameter helix; the quantity ratio of the helical blades of the left large-diameter helix, the left middle-diameter helix and the left small-diameter helix is 2: 3: 4.
the distance between the left variable pitch helical blades is reduced from right to left in turn; the pitch of the helical blades of the left large-diameter spiral is 1.5 times that of the left medium-diameter spiral, and the pitch of the helical blades of the left medium-diameter spiral is 1.3 times that of the helical blades of the left small-diameter spiral.
The diameters of the left variable pitch helical blades are sequentially reduced from right to left; the diameter ratio of the diameter of the left major diameter spiral to the diameter of the left middle diameter spiral is 1.2: 1; the diameter ratio of the left middle diameter spiral diameter to the left small diameter spiral is 1: 08.
the pair of rubber pressing roller squeezing roller sets is connected with a transmission device through a crosshead shoe telescopic coupling in a transmission way.
The upper filter screen tensioning roller set and the lower filter screen tensioning roller set tension the upper filter screen and the lower filter screen under the action of the hydraulic pressure device, the upper filter screen tensioning roller set and the lower filter screen tensioning roller set comprise oil cylinder support frames arranged on the fixed rack device, oil cylinders are fixedly connected to the oil cylinder support frames, and upper filter screen tensioning rollers and lower filter screen tensioning rollers are fixedly arranged on piston rods of the oil cylinders.
The technical scheme of the invention has the following obvious advantages: the adaptive pulp inlet concentration range is wider, and the pulp inlet concentration range can be 3% -12% due to the adoption of the rotary pulp distribution device; the hydraulic device is adopted to drive the hydraulic cylinder to pressurize, the linear pressure is higher, and the pulp dryness is greatly improved and can reach more than 45%.
The technology that novel high-efficient dehydration squeeze roller set and ditch line pressed stainless steel squeeze roller set and combined together has been adopted, has reduced the quantity of squeeze roller set, has reduced equipment cost of manufacture.
Because the number of the press roller sets is reduced, the number of the transmission rollers is changed from two conventional sets into one set, the number of the motor speed reducers is correspondingly reduced, the energy consumption is reduced by 40 percent, and the operation cost is reduced.
The length of the whole equipment is reduced to two thirds of the original length, so that the occupied area of the equipment is reduced, and the civil engineering investment cost is reduced; the length of the filter screen is reduced to two thirds of the original length, and the cost of spare parts is saved.
The screen changing device is adopted, the screen changing time is shortened, the slurry feeding mode can be flexibly selected according to actual conditions, the slurry can be fed by a low concentration pump, the slurry can be fed by a medium concentration pump, the slurry can be fed by a spiral gravity type, and the slurry can be fed by a spiral gravity type.
The high-concentration slurry discharging device has the beneficial effects that slurry with various concentrations is uniformly distributed between the upper filter screen and the lower filter screen through the rotating slurry distributing device, and high-concentration slurry discharging is realized through the continuous dehydration combining the high-efficiency dehydration press roller group, the groove opposite-pressing stainless steel press roller group and the transmission opposite-pressing rubber roller group.
The protection points of the invention are as follows: compact high-efficiency energy-saving concentration equipment for realizing high-efficiency dehydration; a rotary slurry distributing device for realizing slurry distribution; the efficient dewatering press roller group realizes large-area dewatering; the high-aperture-ratio stainless steel press roll with high aperture ratio is realized, and the aperture ratio is 30 percent; a grooved stainless steel press roll for realizing high linear pressure; realize the stainless steel press roll group that presses of high linear pressure.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a rotary slurry distribution apparatus;
FIG. 4 is a schematic view of a high efficiency dewatering press roll stack;
FIG. 5 is a schematic view of a corrugated stainless steel press roll;
FIG. 6 is a schematic view of a counter press stainless steel press roll set;
FIG. 7 is a schematic view of a screen changer;
FIG. 8 is a schematic view of a high open porosity stainless steel press roll stack;
FIG. 9 is a schematic sectional view of a rotary pulp distribution apparatus in example 2;
fig. 10 is a schematic structural view of a rotary pulp distribution apparatus in embodiment 2.
In the figure:
1-rotating pulp distribution device; 2-wedge-shaped pulp blocking and dewatering chopping board device; 3-upper and lower filter screen tensioning roller sets, 4-upper movable frame and 5-high-efficiency dewatering squeezing roller set; 6-filter screen correcting unit; 7-a filter screen cleaning and regenerating device; 8-pressing stainless steel pressing roller group oppositely; 9-fixing the frame device; 10-pair of rubber press roller sets; 11-a crushing screw conveyor; 12-a transmission device, 13-a crosshead shoe telescopic coupling and 14-upper and lower filter screens; 15-hydraulic pressure device; 16-a housing; 17-slurry distribution spiral; 18-a transmission; 19-high open porosity stainless steel squeeze roll; 20-grooved stainless steel press rolls; 21-a hydraulic cylinder; 22-a bearing seat; 23-sieve plate; 24-a support; 25-a flow channel; 26-groove water-filtering stainless steel plate; 27-a roll tyre; 28-hydraulic cylinder; 29-grooved stainless steel press rolls; 30-stainless steel smoothing roller; 33-auxiliary jacks; 34-upper screen replacing support; 35-lower screen replacement support; 301-oil cylinder support frame; 302-oil cylinder; 303-upper and lower strainer tension rolls; 1701-pulp distribution roller; 1702-left pitch helix; 1703-right pitch helix; 1704-feed port; 1705-discharge port.
Detailed Description
The other side of the fixed frame device 9 is fixedly provided with a pair of rubber-covered roll squeezing roller group 10, and the rubber-covered roll squeezing roller group 10 is sequentially connected with a pair of pressure squeezing stainless steel squeezing roller group 8, a high-efficiency dehydration squeezing roller group 5 and an upper and lower filter screen tensioning roller group 3 in a transmission way through an upper and a lower filter screens 14.
The pair of rubber-covered roller squeezing roller sets 10 is connected with a transmission device 12 through a crosshead shoe telescopic coupling 13 in a transmission way, and the transmission device 12 is a speed reducing motor.
The upper and lower filter screen tensioning roller group 3 tensions an upper and lower filter screen 14 under the action of the hydraulic pressure device 15, the upper and lower filter screen tensioning roller group 3 comprises an oil cylinder support frame 301 arranged on the fixed frame device 9, an oil cylinder 302 is fixedly connected to the oil cylinder support frame, and an upper and lower filter screen tensioning roller 303 is fixedly arranged on a piston rod of the oil cylinder 302.
The upper and lower filter screen tensioning roller sets 3 can respectively tension the upper and lower filter screens 14 through the oil cylinders 302, so as to ensure that the upper and lower filter screens 14 are in a tensioning state.
The fixed frame device 9 is provided with the high-efficiency dewatering press roller set 5, so that quick and high-efficiency dewatering is realized; the upper and lower screens 14 rotate as the calender roll set 10 rotates, and each component is mounted on the fixed frame means 9.
A filter screen cleaning and regenerating device 7 and a filter screen cleaning and regenerating device 7 are arranged on the fixed frame device 9, the filter screen cleaning and regenerating device is a steel pipe and a nozzle, a brush is arranged in the steel pipe, and the press stainless steel rubber roller press roller group 8 is pressed to further dewater the slurry; the pressing roller group 8 of the counter-pressing stainless steel rubber roller is driven to drive the filter screen and each pressing roller to operate, and final dehydration is carried out at the same time; and the transmission device provides running power.
The filter screen cleaning and regenerating device is produced by Dainan peak spraying technology Limited.
The pulping device further comprises a pulping screw conveyor 11, and the pulping screw conveyor 11 is used for crushing and decomposing the pulp; and the hydraulic pressure device is used for pressurizing the tensioning device and the roller bodies of the squeezing roller sets to provide power for dewatering.
The upper and lower filter screens 14 form a rotary dewatering system through each squeezing roller set and the tensioning device, and the pulp is uniformly distributed on the filter screens through rotating the pulp distribution device 1.
As shown in fig. 3, the rotary slurry distribution device 1 is composed of a shell 16, a slurry distribution screw 17 and a rotary slurry distribution transmission device 18, wherein the slurry distribution screw 17 comprises a slurry distribution roller 1701, a left variable pitch screw 1702 and a right variable pitch screw 1703 are arranged on the slurry distribution roller 1701, and the screw directions of the left variable pitch screw 1702 and the right variable pitch screw 1703 are opposite.
The position that is close to the casing middle part on the casing 16 is provided with feed inlet 1704, and the feed inlet 1704 opening is located the initiating terminal of left pitch-variable spiral 1702 and right pitch-variable spiral 1703, and the back in the casing 16 is entered to the thick liquids, because feed inlet 1704 opening is located the initiating terminal of left pitch-variable spiral 1702 and right pitch-variable spiral 1703, the thick liquids reach the effect of even coating by the intermediate position of cloth thick liquid roller 1701 to the both ends position removal.
The pitch of the helical blades of the right pitch-variable helix 1703 decreases from left to right in turn; the pitch of the helical blades of the left variable pitch left turn 1702 decreases from right to left in turn.
The rotary slurry distribution transmission device 18 drives the slurry distribution screw 17 to rotate, the slurry distribution screw 17 pushes slurry from the middle part to two sides, the screw diameters of the screw blades of the right pitch-variable screw 1703 are the same, the screw diameters of the screw blades of the left pitch-variable screw 1702 are the same, and the slurry is conveyed to the discharge port 1705 of the shell 16.
The rotary pulp distribution device is a core device of the equipment and consists of a shell, a pulp distribution screw and a transmission device, wherein the shell adopts feeding in the middle of the upper part, pressure is arranged in the shell and matched with the rotating speed of the screw, and the pressure of a pump which supplies materials and the centrifugal force generated in the rotating process of the helical blade are relied on.
After the thick liquids got into the casing from the feed inlet, rely on the fast revolution of cloth thick liquids spiral, carry partial thick liquids from the mid portion to both sides fast, fill the casing fast inside, under the pushing action of cloth thick liquids spiral simultaneously, carry the thick liquids equipartition to long flat mouth type discharge gate, this structure is adapted to the thick liquids concentration of advancing of various differences.
After the thick liquids get into rotatory cloth thick liquid device 1, thick liquids equipartition gets into the wedge and keeps off thick liquids and dehydration kneading board device 2, the space that relies on the wedge district diminishes, concentrate the dehydration to thick liquids, thick liquids follow upper and lower filter screen 14 gets into high-efficient dehydration and squeeze roller set 5 afterwards, squeeze stainless steel and squeeze roller set 8 and transmission and squeeze roller set 10 to the moulding roller and concentrate the dehydration in proper order, and strip the material by the scraper at the transmission to moulding roller set 10, dry thick liquids get into broken screw conveyer 11, accomplish the concentration and the disintegration of thick liquids.
As shown in fig. 4, the fixed frame device 9 is provided with a high-efficiency dewatering press roll group 5; the efficient dewatering press roller set 5 comprises a roller shaft 501, a roller body 502 which can rotate together with the roller shaft 501 is arranged on the roller shaft 501, a screen plate 23 is sleeved outside the roller body 502, a flow channel 25 is formed between the screen plate 23 and the roller body 502, and a plurality of support bodies 24 are arranged on the screen plate 23.
The filtered filtrate enters the flow channel 25 through the sieve plate 23 and the support body 24 and flows out from the two ends of the press roll, so that the filtrate is prevented from flowing back.
The efficient dewatering press roller group adopts a grooved stainless steel press roller, a roller tyre is rolled by a Q345B steel plate, the outside of the roller tyre is coated with a stainless steel plate, and a groove is opened on a lining plate.
As shown in figure 5, the corrugated stainless steel press roll 29 comprises a corrugated water filtering stainless steel plate 26 and a roll casing 27, wherein the stainless steel plate 26 is fixed on the roll casing 27, and the linear pressure of the roll body is increased due to the adoption of the corrugations in the extrusion process, so that the dewatering capacity is stronger.
As shown in fig. 6, counter-pressure pressing stainless steel press roll 8 comprises hydraulic cylinder 28, grooved stainless steel press roll 29 and stainless steel smooth roll 30, stainless steel smooth roll 30 is in front, grooved stainless steel press roll 29 is behind according to the moving direction of the filter screen, and the grooved roll is combined, so that filtrate backflow is reduced, dewatering dryness is greatly improved, and the counter-pressure pressing stainless steel press roll is suitable for dewatering high-concentration pulp.
According to the compact high-efficiency energy-saving concentration equipment, the counter-pressing stainless steel press roller group is characterized in that an upper roller is a stainless steel smooth roller, a roller tire is rolled by a Q345B steel plate and is externally coated with a stainless steel lining plate, a lower roller is a grooved stainless steel press roller, a roller tire is rolled by a Q345B steel plate and is externally coated with a stainless steel lining plate, and grooves are formed in the lining plate.
The fixed frame device is divided into an upper part and a lower part, the two parts on the transmission side are directly connected through bolts, the net changing supporting device is installed between the two parts on the non-transmission side, a hydraulic jack can be arranged in the net changing supporting device, the net changing supporting device is connected through bolts, the transmission side is provided with a net changing cantilever beam, and the hydraulic jack is correspondingly installed.
The hydraulic pressure device is used as pressure power to ensure that the linear pressure of the upper and lower filter screen tensioning roller sets, the efficient dehydration press roller set, the groove opposite pressing stainless steel press roller set and the transmission opposite pressing rubber roller press roller is respectively up to 20, 100, 200 and 300N/mm.
As shown in fig. 7, the net changing device includes a cantilever beam 31, a main jack 32, an auxiliary jack 33, an upper net changing support 34 and a lower net changing support 35, the main jack 32 is combined with the auxiliary jack 33, the main jack 32 is pressed downward, the auxiliary jack 33 is pressed upward, the cantilever beam 31 is moved downward, the upper net changing support 34 is provided with the auxiliary jack 33 installed in a space, and the net changing efficiency is greatly improved.
The net changing device adopts the transmission end to press downwards and the non-transmission end to lift upwards, thus reducing the net changing time and improving the utilization rate of equipment.
As shown in fig. 8, the high-aperture-ratio stainless steel press roll group comprises a high-aperture-ratio stainless steel press roll 19, a grooved stainless steel press roll 20 and a hydraulic cylinder 21, the upper and lower filter screens 14 further concentrate the slurry through the high-aperture-ratio stainless steel press roll 19 and the grooved stainless steel press roll 20, the hydraulic cylinder 21 is hinged to the grooved stainless steel press roll 20, and a piston rod of the hydraulic cylinder 21 extends out and retracts into the adjustable degree of compression between the grooved stainless steel press roll 20 and the hydraulic cylinder 21, so as to control the concentration degree.
An inlet 1704 is provided in the housing 16 near the middle of the housing, the inlet 1704 opening into the beginning of the left pitch spiral 1702 and the right pitch spiral 1703.
The cloth slurry roller 1701 is a roller-shaped structure with a thin middle and two thick ends; the two cloth rolls 1701 rotate in opposite directions.
The left variable pitch helix 1702 consists of a left large diameter helix 1708, a left middle diameter helix 1707 and a left small diameter helix 1706; the number ratio of the helical blades of the left major diameter helix 1708, the left intermediate diameter helix 1707 and the left minor diameter helix 1706 is 2: 3: 4.
the pitch of the helical blades of the left pitch-variable helix 1702 decreases from right to left.
The pitch of the helical blades of the left major diameter helix 1708 is 1.5 times the pitch of the blades of the left minor diameter helix 1707, and the pitch of the helical blades of the left minor diameter helix 1707 is 1.3 times the pitch of the helical blades of the left minor diameter helix 1706.
The diameter of the helical blades of the left pitch-variable helix 1702 decreases from right to left.
The diameter ratio of the diameter of the left major diameter helix 1708 to the diameter of the left intermediate diameter helix 1707 is 1.2: 1; the diameter ratio of the left middle diameter spiral 1707 to the left small diameter spiral 1706 is 1: 08.
the right pitch-variable spiral 1703 is composed of a right large-diameter spiral 1709, a right middle-diameter spiral 1710 and a right small-diameter spiral 1711; right pitch-variable spiral 1703 comprises right major diameter spiral 1709, right intermediate diameter spiral 1710 and right path spiral 1711, and right pitch-variable spiral 1703 is 2 by the quantity ratio of the helical blade of right major diameter spiral 1709, right intermediate diameter spiral 1710 and right path spiral 1711: 3: 4.
the pitch of the helical blades of the right pitch-variable helix 1703 decreases from left to right in turn.
The diameter ratio of the right major diameter helix 1709 to the right intermediate diameter helix 1710 is 1.2: 1, the diameter ratio of the right middle diameter spiral 1710 to the right small diameter spiral 1711 is 1: 0.8.
The two cloth roll 1701 rotate in opposite directions, the left variable pitch screw 1702 on the two cloth roll 1701 form two leftward driving forces in the shell 16, pulp between the two cloth roll 1701 is driven leftward, and the material on the two left variable pitch screws 1702 and the pulp between the two left variable pitch screws 1702 are driven leftward together, so that the material blockage is prevented.
The paper pulp is liquid with certain viscosity and even suspension with solid, the difference of the concentration ranges of the paper pulp is large, the traditional rotary pulp distribution device can only be suitable for the paper pulp with small-range concentration, if the concentration requirement is exceeded, blockage is easy to occur, especially for the paper pulp with medium and high concentration, the friction force between the paper pulp and the shell wall of the pulp distribution device is greatly increased along with the increase of the concentration of the paper pulp, the aggregation of a plurality of fibers is increased, and the blockage probability is increased.
The invention evenly distributes the slurry with various concentrations between the upper and lower filter screens by rotating the slurry distributing device; the efficient dewatering press roller set, the groove pressing stainless steel press roller set and the transmission pressing rubber roller set are combined; and (3) continuous dehydration, wherein the pulp inlet concentration range can be 3% -12% due to the adoption of a rotary pulp distribution device.
Claims (10)
1. A compact energy efficient concentrator plant comprising a stationary frame means (9), characterized in that: a rotary slurry distributing device (1) is arranged on one side of the fixed frame device (9), a wedge-shaped slurry blocking and dewatering chopping board device (2), an upper filter screen tensioning roller set (3) and a lower filter screen tensioning roller set (3) and an upper movable frame (4) are arranged on one side of the rotary slurry distributing device (1),
the wedge-shaped pulp blocking and dewatering chopping board device (2) is arranged between the upper movable rack (4) and the fixed rack device (9);
the other side of the fixed frame device (9) is fixedly provided with a rubber covered roll squeezing roller set (10), and the rubber covered roll squeezing roller set (10) is sequentially connected with a pressing and squeezing stainless steel squeezing roller set (8), a high-efficiency dewatering squeezing roller set (5) and an upper and lower filter screen tensioning roller set (3) in a transmission way through an upper and a lower filter screens (14).
2. A compact energy efficient concentrator as defined in claim 1, wherein: the rotary slurry distribution device (1) is composed of a shell (16), a slurry distribution spiral (17) and a rotary slurry distribution transmission device (18), wherein the slurry distribution spiral (17) comprises a slurry distribution roller (1701), a left variable pitch spiral (1702) and a right variable pitch spiral (1703) are arranged on the slurry distribution roller (1701), and the spiral directions of the left variable pitch spiral (1702) and the right variable pitch spiral (1703) are opposite.
3. A compact energy efficient concentrator as defined in claim 2, wherein: a feed port (1704) is arranged on the shell (16) close to the middle of the shell, and the opening of the feed port (1704) is positioned at the starting end of the left variable pitch spiral (1702) and the right variable pitch spiral (1703).
4. A compact energy efficient concentrator as defined in claim 1, wherein: the rotary slurry distribution device (1) consists of a shell (16), a slurry distribution spiral (17) and a rotary slurry distribution transmission device (18), wherein the slurry distribution spiral (17) comprises 2 slurry distribution rollers (1701) which are arranged in parallel, a left variable pitch spiral (1702) and a right variable pitch spiral (1703) are arranged on each slurry distribution roller (1701), and the spiral directions of the left variable pitch spiral (1702) and the right variable pitch spiral (1703) are opposite; the two cloth rolls (1701) rotate in opposite directions.
5. A compact energy efficient concentrator as defined in claim 4 wherein: the cloth pulp roller 1701 is a roller-shaped structure with a thin middle and thick ends.
6. A compact energy efficient concentrator as defined in claim 4 wherein: the left variable pitch helix (1702) consists of a left large-diameter helix (1708), a left middle-diameter helix (1707) and a left small-diameter helix (1706); the number ratio of the helical blades of the left large-diameter helix (1708), the left middle-diameter helix (1707) and the left small-diameter helix (1706) is 2: 3: 4.
7. a compact energy efficient concentrator as defined in claim 6 wherein: the pitch of the helical blades of the left variable pitch helix (1702) is sequentially reduced from right to left; the pitch of the helical blade of the left large-diameter helix (1708) is 1.5 times that of the left medium-diameter helix (1707), and the pitch of the helical blade of the left medium-diameter helix (1707) is 1.3 times that of the left small-diameter helix (1706).
8. A compact energy efficient concentrator as defined in claim 6 wherein: the diameters of the spiral blades of the left variable pitch spiral (1702) are sequentially reduced from right to left; the diameter ratio of the left major diameter spiral (1708) to the left intermediate diameter spiral (1707) is 1.2: 1; the diameter ratio of the left middle diameter spiral (1707) to the left small diameter spiral (1706) is 1: 08.
9. a compact energy efficient concentrator as defined in claim 1, wherein: the pair of rubber-covered roller press roller sets (8) is connected with a transmission device (18) through a crosshead shoe telescopic coupling (13) in a transmission way.
10. A compact energy efficient concentrator as defined in claim 9, wherein: the upper and lower filter screen tensioning roller sets (3) tension the upper and lower filter screens (14) under the action of the hydraulic pressure device (15), the upper and lower filter screen tensioning roller sets (3) comprise oil cylinder support frames (301) arranged on the fixed frame device (9), oil cylinders (302) are fixedly connected to the oil cylinder support frames (301), and upper and lower filter screen tensioning rollers (303) are fixedly arranged on piston rods of the oil cylinders.
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| CN202017154U (en) * | 2011-01-26 | 2011-10-26 | 福建省三明市三洋造纸机械设备有限公司 | Double-roll pulp washer |
| CN202148462U (en) * | 2011-06-16 | 2012-02-22 | 福建省三明市三洋造纸机械设备有限公司 | Feeding fabric pulp spiral of double-roller pulp washer |
| CN202148461U (en) * | 2011-06-16 | 2012-02-22 | 福建省三明市三洋造纸机械设备有限公司 | Discharge pulping spiral of double-roller pulp washer |
| CN204702993U (en) * | 2015-06-25 | 2015-10-14 | 福建省轻工机械设备有限公司 | In the two net filter-press wet slurry machine of dense type |
| CN207498719U (en) * | 2017-09-30 | 2018-06-15 | 河北天正筛选制浆设备有限公司 | A kind of multiscrew high concentration displacement washing defibrination discongests device and slurry washing system |
| CN212739514U (en) * | 2020-06-15 | 2021-03-19 | 安徽优程特种装备股份有限公司 | Tubular double-screw conveyor |
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2022
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|---|---|---|---|---|
| CN202017154U (en) * | 2011-01-26 | 2011-10-26 | 福建省三明市三洋造纸机械设备有限公司 | Double-roll pulp washer |
| CN202148462U (en) * | 2011-06-16 | 2012-02-22 | 福建省三明市三洋造纸机械设备有限公司 | Feeding fabric pulp spiral of double-roller pulp washer |
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