CN113350878A - High-zinc waste hydrochloric acid zinc extraction process and plate-and-frame filter press used for same - Google Patents
High-zinc waste hydrochloric acid zinc extraction process and plate-and-frame filter press used for same Download PDFInfo
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- CN113350878A CN113350878A CN202110734978.0A CN202110734978A CN113350878A CN 113350878 A CN113350878 A CN 113350878A CN 202110734978 A CN202110734978 A CN 202110734978A CN 113350878 A CN113350878 A CN 113350878A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0492—Applications, solvents used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/38—Removal of the filter cakes by moving parts, e.g. scrapers, contacting stationary filter elements sprayers
- B01D25/383—Brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/38—Removal of the filter cakes by moving parts, e.g. scrapers, contacting stationary filter elements sprayers
- B01D25/386—Nozzles
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Abstract
The invention discloses a process for extracting zinc from high-zinc waste hydrochloric acid and a plate-and-frame filter press used for the process, wherein the high-zinc waste hydrochloric acid is subjected to filter pressing treatment through the plate-and-frame filter press, 20% of trioctyl-decyl tertiary amine, 65% of No. 260 solvent oil and 15% of sec-octanol are used as extracting agents, 1-2% of dilute sulfuric acid is used as a back-extraction agent, and continuous waste hydrochloric acid recovery is realized by adopting a two-stage extraction and two-stage back-extraction mode; the plate-and-frame filter press comprises a frame, a main beam rail, a filter plate, a cleaning support rail, a cleaning traversing mechanism, a pulling plate mechanism and a lifting cleaning machine. The zinc extraction process of the high-zinc waste hydrochloric acid can effectively reduce the zinc content in the waste hydrochloric acid and improve the acid regeneration system of the roasting process; the plate pulling mechanism of the plate-and-frame filter press can simultaneously drive the filter plates at the cleaning point and the point to be cleaned to move, so that the movement time of the filter plates is reduced, and the cleaning efficiency of the filter plates is improved; the cleaning roller can pre-clean the filter plate at the point to be cleaned, and re-clean the filter plate at the overlapped point, thereby improving the cleaning effect of the filter plate.
Description
Technical Field
The invention relates to the technical field of waste hydrochloric acid treatment, in particular to a process for extracting zinc from high-zinc waste hydrochloric acid and a plate-and-frame filter press for the process.
Background
Because of the wide application of the hydrochloric acid pickling process, especially the wide application of the galvanizing industry, the accumulation of zinc inevitably occurs in the waste hydrochloric acid. When the zinc content in the waste hydrochloric acid exceeds 1500mg/L, the zinc content in the waste hydrochloric acid can greatly affect an acid regeneration system adopting a roasting process, so that a blanking pipeline for generating the iron oxide red is blocked and is difficult to clean, the waste hydrochloric acid regeneration treatment is greatly inconvenient, the zinc content of the iron oxide red is increased, and the sale is difficult.
At present, most of treatment methods for high-zinc waste hydrochloric acid are chemical precipitation, lime and waste hydrochloric acid are generally used for neutralization, and due to the fact that the waste hydrochloric acid is high in concentration and large in workload, a large amount of lime is consumed in neutralization, a large amount of sludge is generated, subsequent treatment is needed, facility investment and treatment cost are high, waste of chemicals is caused, the waste hydrochloric acid cannot be recycled, and the cost for treating the generated sludge is high.
When the waste hydrochloric acid containing zinc is treated, the waste hydrochloric acid containing zinc needs to be filtered firstly to remove partial impurities in the waste hydrochloric acid containing zinc, a plate-and-frame filter press is generally adopted for filtering, after the plate-and-frame filter press is filtered, a plate pulling trolley needs to pull a filter plate open for cleaning, but when the plate pulling trolley of the existing plate-and-frame filter press is used for pulling a plate, the filter plate at the cleaning point is pulled away, then the filter plate at the cleaning point is pulled to the cleaning point in a return process, the plate pulling trolley can only move back and forth to pull the filter plate one by one, the filter plate at the cleaning point cannot be pulled to the cleaning point while the filter plate at the cleaning point is pulled away, so that the time for cleaning a single filter plate is prolonged, and the cleaning time of the plate-and-frame filter press is increased integrally due to the large number of the filter plates.
Disclosure of Invention
The invention aims to solve the problems and designs a process for extracting zinc from high-zinc waste hydrochloric acid and a plate-and-frame filter press for the process.
The technical scheme of the invention is that the process for extracting zinc from the high-zinc waste hydrochloric acid comprises the following steps:
(1) storing high-zinc waste hydrochloric acid A with the zinc content of less than 10000mg/L in a waste hydrochloric acid raw material tank, and performing filter pressing on the high-zinc waste hydrochloric acid A by using a plate-and-frame filter press to obtain filtered high-zinc waste hydrochloric acid B without impurities, and storing the filtered high-zinc waste hydrochloric acid B into a waste hydrochloric acid storage tank;
(2) the method comprises the following steps of (1) uniformly mixing 20% of trioctyl decyl tertiary amine, 65% of No. 260 solvent oil and 15% of secondary octanol to prepare an extracting agent, performing secondary countercurrent extraction on zinc from high-zinc waste hydrochloric acid B at a flow ratio of 1.2-2:1, wherein the single-stage reaction time is 3-5min, and obtaining raffinate, namely hydrochloric acid C with the zinc content below 1000mg/L and a zinc-containing loaded organic phase;
(3) the back extractant with the components of 1-2% dilute sulfuric acid and a zinc-containing loaded organic phase are as follows: carrying out twice three-stage countercurrent contact on the back extractant at a flow ratio of 1:1, wherein the single-stage reaction time is 3-5min, and obtaining a regenerated extractant and a back-extracted organic phase;
(4) and (4) discharging the organic phase after the back extraction after the wastewater reaches the standard.
Preferably, the stripping agent is 2% dilute sulfuric acid.
Preferably, the extractant and the high-zinc waste hydrochloric acid B are subjected to secondary countercurrent extraction of zinc at a flow ratio of 1.5: 1.
The invention also provides a plate-and-frame filter press for the process of extracting zinc from the high-zinc waste hydrochloric acid, which comprises a frame and a main beam rail fixed on the frame, and also comprises:
the filter plates are arranged on the main beam track and can move on the main beam track, and extension plates are fixed on two sides of each filter plate;
the cleaning support rails are fixed on the rack and positioned on two sides of the main beam rail;
the cleaning and transverse moving mechanism is arranged on the cleaning and supporting track and can move along the cleaning and supporting track, the cleaning and transverse moving mechanism comprises a lower shell, the bottom of the lower shell is provided with a track wheel which is in rolling connection with the cleaning and supporting track, and a moving driving mechanism for driving the track wheel to move is arranged in the lower shell;
the arm-tie mechanism, the arm-tie mechanism is including fixing the upper casing in lower floor's casing upper end, install annular conveying guide rail and spacing guided way in the upper casing, install the first speed reduction step motor of drive annular conveying guide rail operation in the lower casing, spacing guided way is located annular conveying guide rail periphery, annular conveying guide rail includes a plurality of equidistance distribution's that moves along its orbit sliding piece, all fixed mounting has flexible pushing equipment on the sliding piece, spacing guided way comprises guide section and introduction section, the interval equidistance setting of guide section and annular conveying guide rail, introduction section and annular conveying guide rail interval are greater than the interval of guide section and annular conveying guide rail, be in the compression state of keeping away from the extension board when flexible pushing equipment contacts with the guide section, the guide section leaves the arm-tie space that supplies flexible pushing equipment to stretch out to the state in order to cooperate with the extension board with the introduction section between the section, the leading-in section is used for contacting with the telescopic pushing mechanism and leading the telescopic pushing mechanism into the guiding section, the telescopic pushing mechanism conveys the filter plates of the points to be cleaned to the cleaning points in the plate pulling space and conveys the cleaned filter plates at the cleaning points to the stacking points, and the distances between the cleaning points and the points to be cleaned are equal to the distances between the cleaning points and the stacking points;
the telescopic pushing mechanism comprises a spring telescopic rod which is horizontally arranged and connected with a sliding piece, a pushing seat is installed at the end of the spring telescopic rod, a through groove is formed in the pushing seat, a shifting plate is hinged in the through groove, a sliding groove is formed in the inner wall of the through groove, a limiting block which is in contact fit with the shifting plate to adjust the angle of the shifting plate is slidably clamped in the sliding groove, a first transverse plate and a second transverse plate which are horizontally arranged and a vertical plate which is vertically and downwards arranged are fixed on a telescopic section of the spring telescopic rod, a nut is fixed on the first transverse plate, the nut is in threaded connection with a screw rod, one end of the screw rod is rotatably connected with the pushing seat, a rotary sleeve is rotatably installed on the second transverse plate through a bearing, the other end of the screw rod extends into the rotary sleeve and is provided with a sliding key, a key groove which is in key connection with the sliding key is formed in the inner wall of the rotary sleeve, a one-way gear and a first cylindrical gear are installed on the rotary sleeve, and universal balls which are in rolling connection with a limiting guide rail are installed on the vertical plate; a first rack which is used for being meshed and matched with the first cylindrical gear is fixed in the upper shell and positioned on the inner side of the guide section;
the filter plate to the cleaning point department carries out abluent lift wiper mechanism, lift wiper mechanism includes the support of fixed mounting on upper casing, lift actuating mechanism is installed at the support top, slidable mounting has the wash rack that can follow the support and go up and down on the support, the wash rack lower extreme is fixed with the backplate that two symmetries set up, the cleaning roller is all installed to the backplate lower part, be close to be fixed with L shape pole on the backplate of stacking point one side, L shape pole lower extreme is fixed with vertical setting and is used for and stacks the one-way gear engagement complex second rack of point department.
Preferably, the walking driving mechanism comprises a second speed-reducing stepping motor arranged in the lower shell, the output end of the second speed-reducing stepping motor is provided with a first synchronous belt wheel, the shaft end of the rail wheel is provided with a second synchronous belt wheel, and the first synchronous belt wheel is in transmission connection with the second synchronous belt wheel through a first synchronous transmission belt; and a third rack horizontally arranged is further installed on the rack, and a second cylindrical gear meshed and connected with the third rack is installed at the shaft end of the rail wheel.
Preferably, the lifting driving mechanism comprises a third speed reduction stepping motor arranged at the center of the top of the support and guide wheels positioned on two sides of the top of the support, the winding wheel is arranged at the output end of the third speed reduction stepping motor, guide grooves are formed in two sides of the support, guide trolleys are fixed on two sides of the top of the cleaning frame, rollers of the guide trolleys are in rolling connection with the guide grooves, pull ropes are arranged on the guide wheels, and the pull ropes are connected with the guide trolleys after bypassing the guide wheels.
Preferably, the cleaning roller comprises a hollow roller, bristles fixed on the hollow roller, a hollow shaft and an adjusting shaft which are coaxially arranged at two sides of the hollow roller, the hollow shaft is rotatably arranged on the protective plate, one end of the hollow shaft extends out of the protective plate and is provided with a first belt pulley, the hollow shaft is connected with a high-pressure water supply pipe through a rotary joint, a solenoid valve is arranged on the high-pressure water supply pipe, a plurality of water outlet holes are formed in the hollow roller, two arc-shaped baffles which are arranged up and down are arranged at the inner side of the hollow roller, the arc-shaped baffles are connected through a connecting plate, a sealing gasket which is connected with the hollow roller in a sliding and sealing manner is arranged on the end surface of the arc-shaped baffles facing the hollow roller, a water outlet area is formed in the area of the hollow roller, the adjusting shaft is connected with the hollow roller through a sealing bearing, a torsion spring is arranged on the adjusting shaft, the other end of the torsion spring is connected with the protective plate, one end of the adjusting shaft extends into the hollow roller and is fixedly connected with the connecting plate, the other end of the adjusting shaft is rotatably arranged on the guard plate.
Preferably, one end of the adjusting shaft, which is far away from the hollow roller, extends out of the guard plate and is provided with a third synchronous belt wheel, the upper part of the guard plate is provided with a rotating shaft, the rotating shaft is provided with a fourth synchronous belt wheel and an adjusting plate, and the third synchronous belt wheel and the fourth synchronous belt wheel are in transmission connection through a second synchronous transmission belt; the adjusting plates on the two guard plates are arranged in a staggered way in opposite directions; be fixed with upper mount and lower floor's gag lever post on the support, upper mount installs upper gag lever post through the torsion axis of rotation, and the torsion axis of rotation provides the torsion that makes upper gag lever post spin in order with upper mount butt.
Preferably, when the cleaning roller descends to the bottom of the filter plate, the adjusting plate is in contact fit with the lower limiting rod; when the cleaning roller rises to the top of the filter plate, the adjusting plate is in contact fit with the upper limiting rod.
Preferably, install the washing actuating mechanism on the wash rack, wash actuating mechanism including installing the rotating electrical machines on the wash rack, two second pulleys with first pulley one-to-one are installed to the rotating electrical machines output, and the second pulley passes through driving belt and is connected rather than the first pulley transmission that corresponds.
The invention has the beneficial effects that:
1. the zinc content in the waste hydrochloric acid can be effectively reduced, the zinc content in the waste hydrochloric acid can be reduced to be below 1000mg/L for the high-zinc waste hydrochloric acid with the zinc content of below 10000mg/L, an acid regeneration system of a roasting process is improved, the zinc content in the waste hydrochloric acid can be effectively reduced, and continuous waste hydrochloric acid recycling is realized;
2. the filter plate cleaning efficiency of the plate-and-frame filter press is high, the filter plates at the cleaning point and the to-be-cleaned point can be driven to move at the same time, the filter plates at the cleaning point are moved to the stacking point, the filter plates at the to-be-cleaned point are moved to the cleaning point for cleaning, the filter plate moving time is reduced, and the filter plate cleaning efficiency is improved;
3. the cleaning roller near one side of the point to be cleaned sprays high-pressure water to the cleaning point and the filter plate at the point to be cleaned, the filter plate at the point to be cleaned is pre-cleaned, and the filter plate at the cleaning point is subjected to rotary cleaning and high-pressure water spraying cleaning; the cleaning roller close to one side of the stacking point sprays high-pressure water to the cleaning point and the filter plate at the stacking point, the filter plate at the stacking point is cleaned again, the filter plate at the cleaning point is cleaned in a rotating mode and is cleaned by spraying high-pressure water, and the cleaning effect on the filter plate is improved.
Drawings
FIG. 1 is a flow diagram of a process for extracting zinc from high-zinc waste hydrochloric acid;
figure 2 is a front view of the plate and frame filter press of the present invention;
FIG. 3 is a side cross-sectional view of the present invention;
FIG. 4 is a top partial schematic view of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 showing the traverse mechanism and the pulling plate mechanism;
FIG. 6 is an enlarged view of a portion of FIG. 3 at the cleaning roller;
FIG. 7 is a view showing the coupling structure of the cleaning roller and the protector plate;
FIG. 8 is a top view of the telescoping pusher mechanism;
FIG. 9 is an enlarged view of a portion of FIG. 3 at A;
FIG. 10 is a schematic view of the structure of the cleaning drive mechanism;
FIG. 11 is a rear partial schematic view of FIG. 10;
in the figure, 1, a frame; 2. a main beam track; 3. filtering the plate; 4. an extension plate; 5. cleaning the support rail; 6. a lower shell; 7. a rail wheel; 8. an upper shell; 9. an annular conveying guide rail; 10. limiting the guide rail; 11. a first deceleration stepping motor; 12. a sliding member; 13. a guide section; 14. an introduction section; 15. a plate pulling space; 16. points to be cleaned; 17. cleaning points; 18. stacking points; 19. a spring telescopic rod; 20. a material pushing seat; 21. a through groove; 22. dialing a plate; 23. a chute; 24. a limiting block; 25. a nut; 26. a screw; 27. rotating the sleeve; 28. a one-way gear; 29. a first cylindrical gear; 30. a ball transfer unit; 31. a first rack; 32. a support; 33. a cleaning frame; 34. a guard plate; 35. cleaning the roller; 36. an L-shaped rod; 37. a second rack; 38. a second reduction stepping motor; 39. a first timing pulley; 40. a second timing pulley; 41. a first synchronous belt; 42. a third rack; 43. a second cylindrical gear; 44. a third reduction stepping motor; 45. a guide wheel; 46. a winding wheel; 47. a guiding trolley; 48. pulling a rope; 49. a hollow roller; 50. brushing; 51. a hollow shaft; 52. an adjustment shaft; 53. a first pulley; 54. a rotary joint; 55. a high pressure water supply pipe; 56. an electromagnetic valve; 57. an arc-shaped baffle plate; 58. a connecting plate; 59. a gasket; 60. a water outlet area; 61. a torsion spring; 62. a third synchronous pulley; 63. a rotating shaft; 64. a fourth timing pulley; 65. an adjusting plate; 66. a second synchronous belt; 67. an upper layer fixing frame; 68. a lower layer limiting rod; 69. a torsion rotating shaft; 70. an upper layer limiting rod; 71. a rotating electric machine; 72. a second pulley; 73. a drive belt.
Detailed Description
The invention is described in detail below with reference to the attached drawing
Example 1
As shown in fig. 1: a process for extracting zinc from high-zinc waste hydrochloric acid comprises the following steps:
(1) storing high-zinc waste hydrochloric acid A with the zinc content of 7000mg/L in a waste hydrochloric acid raw material tank, and performing filter pressing on the high-zinc waste hydrochloric acid A through a plate-and-frame filter press to obtain filtered high-zinc waste hydrochloric acid B without impurities, and storing the filtered high-zinc waste hydrochloric acid B into a waste hydrochloric acid storage tank;
(2) the method comprises the following steps of (1) uniformly mixing 20% of trioctyl decyl tertiary amine, 65% of No. 260 solvent oil and 15% of secondary octanol to prepare an extracting agent, carrying out secondary countercurrent extraction on zinc from high-zinc waste hydrochloric acid B at a flow ratio of 1.3:1, wherein the single-stage reaction time is 3.5min, and obtaining raffinate, namely hydrochloric acid C with the zinc content of 350mg/L and a zinc-containing loaded organic phase;
(3) the back extractant with the components of 2 percent dilute sulfuric acid and a zinc-containing loaded organic phase are as follows: carrying out twice three-stage countercurrent contact on the stripping agent with the flow ratio of 1:1, wherein the single-stage reaction time is 3.5min, and obtaining a regenerated extracting agent and an organic phase after stripping;
(4) and (4) discharging the organic phase after the back extraction after the wastewater reaches the standard.
The invention also provides a plate-and-frame filter press for the process of extracting zinc from the high-zinc waste hydrochloric acid, which comprises a frame 1 and a main beam rail 2 fixed on the frame 1, and further comprises:
the filter plates 3 are arranged on the main beam track 2 and can move on the main beam track 2, and extension plates 4 are fixed on two sides of each filter plate 3; the filter plate 3 is used for filtering wastewater, the filter plate 3 is provided with a roller part rolling on the main beam track 2, and the extension plates 4 on two sides of the filter plate 3 are in contact fit with the plate pulling mechanism so as to be pulled by the plate pulling mechanism to move;
the cleaning support rail 5 is fixed on the rack 1, and the cleaning support rail 5 is positioned on two sides of the main beam rail 2; the cleaning support rail 5 and the main beam rail 2 are both provided with two rails so as to support the cleaning transverse moving mechanism at the upper part of the cleaning support rail in parallel;
the cleaning and transverse moving mechanism is arranged on the cleaning and supporting track 5 and can move along the cleaning and supporting track 5, the cleaning and transverse moving mechanism comprises a lower shell 6, the bottom of the lower shell 6 is provided with a track wheel 7 which is in rolling connection with the cleaning and supporting track 5, and a moving driving mechanism for driving the track wheel 7 to move is arranged in the lower shell 6; the cleaning traversing mechanisms on the two cleaning support rails 5 work synchronously, and the track wheels 7 are driven to rotate by the traveling driving mechanism, so that the track wheels 7 move on the cleaning support rails 5;
the pulling plate mechanism comprises an upper shell 8 fixed on the upper end of a lower shell 6, an annular conveying guide rail 9 and a limiting guide rail 10 are installed in the upper shell 8, a first speed reduction stepping motor 11 for driving the annular conveying guide rail 9 to run is installed in the lower shell 6, the limiting guide rail 10 is positioned on the periphery of the annular conveying guide rail 9, the annular conveying guide rail 9 comprises a plurality of sliding pieces 12 which are distributed at equal intervals and move along the track of the annular conveying guide rail, a telescopic pushing mechanism is fixedly installed on each sliding piece 12, the limiting guide rail 10 is composed of a guide section 13 and an introduction section 14, the guide section 13 and the annular conveying guide rail 9 are arranged at equal intervals, the interval between the introduction section 14 and the annular conveying guide rail 9 is larger than the interval between the guide section 13 and the annular conveying guide rail 9, the telescopic pushing mechanism is in a compression state far away from an extension plate 4 when in contact with the guide section 13, a pulling plate space 15 for the telescopic pushing mechanism to extend to the extension state to be matched with the extension plate 4 is reserved between the guide section 13 and the introduction section 14, the leading-in section 14 is used for contacting with a telescopic pushing mechanism and leading the telescopic pushing mechanism into the guiding section 13, the telescopic pushing mechanism conveys the filter plate 3 at the point 16 to be cleaned to the cleaning point 17 in the plate pulling space 15, and conveys the filter plate 3 cleaned at the cleaning point 17 to the stacking point 18, and the distances from the cleaning point 17 to the point 16 to be cleaned and the stacking point 18 are equal;
the annular conveying guide rail 9 drives the telescopic pushing mechanism to move for a fixed distance, so that the telescopic pushing mechanism at the point 16 to be cleaned drives the filter plate 3 to move to the cleaning point 17, the telescopic pushing mechanism at the cleaning point 17 drives the cleaned filter plate 3 to move to the stacking point 18, and the telescopic pushing mechanism is arranged at equal intervals for 8 to operate circularly; an opening is formed in one end face, facing the filter plate 3, of the upper-layer shell 8, so that the telescopic pushing mechanism can extend out to pull the filter plate 3, and the introduction section 14 extends out of the upper-layer shell 8 through the opening so that the telescopic pushing mechanism can be introduced into the guide section 13;
the telescopic pushing mechanism comprises a spring telescopic rod 19 which is horizontally arranged and connected with the sliding piece 12, the spring telescopic rod 19 is a spring telescopic rod, a pushing seat 20 is installed at the end of the spring telescopic rod 19, a through groove 21 is formed in the pushing seat 20, a shifting plate 22 is hinged in the through groove 21, a sliding groove 23 is formed in the inner wall of the through groove 21, a limiting block 24 which is in contact fit with the shifting plate 22 to adjust the angle of the shifting plate 22 is clamped in the sliding groove 23 in a sliding mode, a first horizontal plate and a second horizontal plate which are horizontally arranged and a vertical plate which is vertically and downwards arranged are fixed on a telescopic section of the spring telescopic rod 19, a nut 25 is fixed on the first horizontal plate, the nut 25 is in threaded connection with a screw 26, one end of the screw 26 is rotatably connected with the pushing seat 20, a rotary sleeve 27 is rotatably installed on the second horizontal plate through a bearing, the other end of the screw 26 extends into the rotary sleeve 27 and is provided with a sliding key, a key groove which is connected with the sliding key is formed in the inner wall of the rotary sleeve 27, the rotating sleeve 27 is provided with a one-way gear 28 and a first cylindrical gear 29, and the vertical plate is provided with a universal ball 30 which is used for being in rolling connection with the limiting guide rail 10; a first rack 31 which is used for being meshed and matched with the first cylindrical gear 29 is fixed in the upper shell 8 and positioned on the inner side of the guide section 13;
the lifting cleaning mechanism is used for cleaning the filter plates 3 at the cleaning points 17 and comprises a support 32 fixedly mounted on the upper shell 8, a lifting driving mechanism is mounted at the top of the support 32, a cleaning frame 33 capable of lifting along the support 32 is slidably mounted on the support 32, two protective plates 34 symmetrically arranged are fixed at the lower end of the cleaning frame 33, cleaning rollers 35 are mounted at the lower parts of the protective plates 34, an L-shaped rod 36 is fixed on the protective plate 34 close to one side of the stacking point 18, and a second rack 37 which is vertically arranged and is meshed with the one-way gear 28 at the stacking point 18 is fixed at the lower end of the L-shaped rod 36.
The cleaning transverse moving mechanism drives the pulling plate mechanism to integrally move for a section of displacement each time, the displacement is the width of the filter plate 3, meanwhile, the annular conveying guide rail 9 drives the telescopic pushing mechanism to move for a section of fixed displacement through the sliding piece 12, and the displacement is the distance between the adjacent sliding pieces 12; after the cleaning traversing mechanism finishes moving and is in a static state, the telescopic pushing mechanism at the cleaning point 16 moves to the cleaning point 17, the extending plate 4 is pushed by the poking plate 22 to push the filter plate 3 to the cleaning point 17, the telescopic pushing mechanism at the cleaning point 17 drives the cleaned filter plate 3 to move to the stacking point 18, the telescopic pushing mechanism at the stacking point 18 moves to the leading-in section 14, the universal ball 30 is in contact with the leading-in section 14, and the spring telescopic rod 19 is gradually compressed; meanwhile, the next telescopic pushing mechanism at the point 16 to be cleaned moves to the position where the universal ball 30 is separated from the guide section 13 and enters the pulling plate space 15, and under the action of the elastic restoring force of the spring telescopic rod 19, the spring telescopic rod 19 extends out to drive the pushing seat 20 to move to the filter plate 3 of the point 16 to be cleaned; then the annular conveying guide rail 9 stops moving intermittently, the lifting driving mechanism of the lifting cleaning mechanism drives the cleaning frame 33 to descend, the cleaning roller 35 cleans the filter plates 3 at the cleaning points 17, the L-shaped rod 36 drives the second rack 37 to descend together in the descending process of the cleaning frame 33, the second rack 37 is in contact engagement with the one-way gear 28 at the stacking point 18, so as to drive the one-way gear 28 to rotate, the rotary sleeve 27 rotates together with the one-way gear 28 and drives the screw 26 to rotate through the key slot and the sliding key, the screw 26 moves away from the material pushing seat 20 while rotating on the inner side edge of the nut 25, under the guiding and limiting action of the sliding slot 23, the screw 26 drives the limiting block 24 to move stably and linearly, so that the limiting block 24 no longer limits the position of the shifting plate 22, the shifting plate 22 can rotate freely in the through slot 21 by a certain angle, and the shifting plate 22 can rotate under stress when being in contact with the extension plate 4 when the telescopic material pushing mechanism moves again, the extension plate 4 can not be in rigid contact, and interference is avoided; when the cleaning frame 33 ascends and the second rack 37 contacts the one-way gear 28, the one-way gear 28 cannot drive the rotating sleeve 27 to rotate, and the one-way gear 28 is arranged to avoid the reset of the limiting block 24; after the cleaning is finished, the annular conveying guide rail 9 and the cleaning traversing mechanism move again, when the telescopic pushing mechanism passes through the first rack 31, the first cylindrical gear 29 is meshed with the first rack 31, so as to drive the rotating sleeve 27 and the screw 26 to rotate, the limiting block 24 is reset to abut against the shifting plate 22 again, and the shifting plate 22 and the pushing seat 20 keep an angle of approximately 90 degrees, so that the extension plate 4 can be pushed again subsequently.
Preferably, the walking driving mechanism comprises a second speed-reducing stepping motor 38 arranged in the lower shell 6, the output end of the second speed-reducing stepping motor 38 is provided with a first synchronous belt pulley 39, the shaft end of the rail wheel 7 is provided with a second synchronous belt pulley 40, and the first synchronous belt pulley 39 and the second synchronous belt pulley 40 are in transmission connection through a first synchronous transmission belt 41; the rack 1 is also provided with a third rack 42 which is horizontally arranged, and the shaft end of the rail wheel 7 is provided with a second cylindrical gear 43 which is meshed and connected with the third rack 42.
The second speed-reducing stepping motor 38 moves the second synchronous pulley 40, the rail wheel 7 and the second cylindrical gear 43 through the first synchronous pulley 39 and the first synchronous transmission belt 41, and the second speed-reducing stepping motor 38 drives the rail wheel 7 to move and fixedly displace on the cleaning support rail 5 through the movement of the second cylindrical gear 43 on the third rack 42, so as to accurately clean the filter plates 3.
Preferably, the lifting driving mechanism comprises a third speed-reducing stepping motor 44 mounted at the center of the top of the support 32 and guide wheels 45 positioned at two sides of the top of the support 32, a winding wheel 46 is mounted at the output end of the third speed-reducing stepping motor 44, guide grooves are formed in two sides of the support 32, guide trolleys 47 are fixed on two sides of the top of the cleaning frame 33, rollers of the guide trolleys 47 are in rolling connection with the guide grooves, a pull rope 48 is mounted on the guide wheels 45, and the pull rope 48 is connected with the guide trolleys 47 after bypassing the guide wheels 45.
The third speed-reducing stepping motor 44 drives the two guide trolleys 47 to synchronously lift through the winding wheel 46 and the pull rope 48 bypassing the guide wheel 45, and further drives the cleaning frame 33 to stably lift in the guide groove.
The cleaning roller 35 comprises a hollow roller 49, bristles 50 fixed on the hollow roller 49, a hollow shaft 51 and an adjusting shaft 52 which are coaxially arranged at two sides of the hollow roller 49, the hollow shaft 51 is rotatably arranged on the protective plate 34 through a bearing, one end of the hollow shaft 51 extends out of the protective plate 34 and is provided with a first belt pulley 53, the hollow shaft 51 is connected with a high-pressure water supply pipe 55 through a rotary joint 54, an electromagnetic valve 56 is arranged on the high-pressure water supply pipe 55, a plurality of water outlet holes are formed in the hollow roller 49, two arc-shaped baffles 57 which are vertically arranged are arranged on the inner side of the hollow roller 49, the arc-shaped baffles 57 are connected through a connecting plate 58, a sealing gasket 59 which is connected with the hollow roller 49 in a sliding sealing manner is arranged on the end surface of the arc-shaped baffles 57 facing the hollow roller 49, a water outlet area 60 is formed in the area of the hollow roller 49 between the arc-shaped baffles 57, and the adjusting shaft 52 is connected with the hollow roller 49 through a sealing bearing, the adjusting shaft 52 is provided with a torsion spring 61, the other end of the torsion spring 61 is connected with the guard plate 34, one end of the adjusting shaft 52 extends into the hollow roller 49 and is fixedly connected with the connecting plate 58, and the other end of the adjusting shaft 52 is rotatably arranged on the guard plate 34.
One end of the adjusting shaft 52, which is far away from the hollow roller 49, extends out of the guard plate 34 and is provided with a third synchronous belt pulley 62, the upper part of the guard plate 34 is provided with a rotating shaft 63, the rotating shaft 63 is provided with a fourth synchronous belt pulley 64 and an adjusting plate 65, and the third synchronous belt pulley 62 and the fourth synchronous belt pulley 64 are in transmission connection through a second synchronous transmission belt 66; the adjusting plates 65 on the two guard plates 34 are oppositely arranged in a staggered manner; an upper-layer fixing frame 67 and a lower-layer limiting rod 68 are fixed on the support 32, an upper-layer limiting rod 70 is installed on the upper-layer fixing frame 67 through a torsion rotating shaft 69, and the torsion rotating shaft 69 provides torsion for enabling the upper-layer limiting rod 70 to rotate upwards to abut against the upper-layer fixing frame 67.
Install on the wash rack 33 and wash actuating mechanism, wash actuating mechanism including installing the rotating electrical machines 71 on wash rack 33, two second belt pulleys 72 with first belt pulley 53 one-to-one are installed to rotating electrical machines 71 output, and second belt pulley 72 passes through driving belt 73 and is connected rather than the transmission of the first belt pulley 53 that corresponds.
The lifting driving mechanism drives the cleaning frame 33 to descend to clean the filter plates 3 at the cleaning points 17, the descending positions of the cleaning frame 33 and the hollow roller 49 can be judged according to the angular displacement output by the third speed-reducing stepping motor 44, when the hollow roller 49 descends to be in contact with the filter plates 3 at the cleaning points 17, the electromagnetic valve 56 and the rotating motor 71 are started, the rotating motor 71 drives the first belt pulley 53 and the hollow roller 49 to rotate through the second belt pulley 72 and the transmission belt 73, the high-pressure water supply pipe 55 leads a high-pressure water source into the hollow shaft 51 and the hollow roller 49, the sealing gasket 59 on the arc-shaped baffle plate 57 blocks the water outlet holes at the upper part and the lower part of the hollow roller 49, so that the high-pressure water is sprayed out from the two sides of the hollow roller 49, the cleaning roller 35 at one side close to the points 16 to be cleaned sprays the high-pressure water to the cleaning points 17 and the filter plates 3 at the points 16 to be cleaned, pre-cleaning the filter plate 3 of the point 16 to be cleaned, and performing brush and high-pressure water injection cleaning on the filter plate 3 of the cleaning point 17; the cleaning roller 35 close to one side of the stacking point 18 sprays high-pressure water to the cleaning points 17 and the filter plates 3 of the stacking point 18, the filter plates 3 of the stacking point 18 are cleaned again, the cleaning effect is improved, and brushes and the high-pressure water spraying cleaning are carried out on the filter plates 3 of the cleaning points 17; the torsion spring 61 has larger torsion force which is far larger than the friction force between the sealing gasket 59 and the hollow roller 49, and the torsion spring 61 can limit the adjusting shaft 52 to rotate along with the hollow roller 49, so that when the hollow roller 49 rotates, the arc-shaped baffle 57 and the sealing gasket 59 can keep the positions unchanged, and water outlet holes in the upper part and the lower part of the hollow roller 49 are sealed;
when the cleaning roller 35 descends to the bottom of the filter plate 3, the adjusting plate 65 is in contact fit with the lower-layer limiting rod 68, the adjusting plate 65 is in rigid contact with the lower-layer limiting rod 68, the cleaning frame 33 and the whole weight of each element which ascends along with the cleaning frame 33 are far larger than the torsion force which needs to overcome the torsion of the torsion spring 61, therefore, the adjusting plate 65 can rotate upwards under the limiting action of the lower-layer limiting rod 68, but does not pass through the lower-layer limiting rod 68, the rotating shaft 63 rotates along with the adjusting plate 65, and the fourth synchronous pulley 64 and the second synchronous transmission belt 66 drive the third synchronous pulley 62 and the adjusting shaft 52 to rotate, the adjusting shaft 52 drives the arc-shaped baffle plate 57 to rotate through the connecting plate 58, so that the arc-shaped baffle plate 57 rotates upwards towards one side of the filter plate 3 at the cleaning point 17, the water outlet area 60 moves upwards, and the cleaning roller; then the lifting driving mechanism drives the cleaning frame 33 to rise, the arc-shaped baffle 57 resets under the action of the elastic restoring force of the torsion spring 61, and the water outlet area 60 restores to the two sides of the cleaning roller 35; similarly, when the cleaning roller 35 rises to the top of the filter plate 3, the adjusting plate 65 is in rigid contact with the upper-layer limiting rod 70, the lifting driving mechanism drives the cleaning frame 33 to rise, the pulling force is far greater than the torsion force required to overcome the torsion of the torsion spring 61, the adjusting plate 65 can rotate downwards under the limiting action of the upper-layer limiting rod 70 and passes through the upper-layer limiting rod 70, the rotating shaft 63 rotates along with the adjusting plate 65, the third synchronous belt pulley 62 and the adjusting shaft 52 are driven to rotate by the fourth synchronous belt pulley 64 and the second synchronous transmission belt 66, the adjusting shaft 52 drives the arc-shaped baffle 57 to rotate by the connecting plate 58, so that the arc-shaped baffle 57 rotates downwards towards one side of the filter plate 3 at the cleaning point 17, the water outlet area 60 moves downwards, and the cleaning roller 35 can spray high-pressure water obliquely downwards to clean; when the adjusting plate 65 descends to the upper limiting rod 70, the torsion rotating shaft 69 is arranged, so that the adjusting plate 65 descends to be in non-rigid contact with the upper limiting rod 70, the upper limiting rod 70 is pressed down on the adjusting plate 65, the upper limiting rod 70 rotates downwards until the adjusting plate 65 passes through the upper limiting rod, and then the upper limiting rod rotates upwards to reset under the action of the elastic restoring force of the torsion rotating shaft 69.
Example 2
This example is substantially the same as example 1, except that the process for extracting zinc from high-zinc waste hydrochloric acid comprises the following steps:
(1) storing high-zinc waste hydrochloric acid A with zinc content of 8000mg/L in a waste hydrochloric acid raw material tank, and performing filter pressing on the high-zinc waste hydrochloric acid A by using a plate-and-frame filter press to obtain filtered high-zinc waste hydrochloric acid B without impurities, and storing the filtered high-zinc waste hydrochloric acid B into a waste hydrochloric acid storage tank;
(2) the extraction agent prepared by uniformly mixing 20% of trioctyl decyl tertiary amine, 65% of No. 260 solvent oil and 15% of secondary octanol, the high-zinc waste hydrochloric acid B and the mixture of 1.5: performing secondary countercurrent extraction on zinc at a flow ratio of 1, wherein the single-stage reaction time is 4min, and the obtained raffinate is hydrochloric acid C with the zinc content of 400mg/L and a zinc-containing loaded organic phase;
(3) the back extractant with the components of 2 percent dilute sulfuric acid and a zinc-containing loaded organic phase are as follows: carrying out twice three-stage countercurrent contact on the back extractant at a flow ratio of 1:1, wherein the single-stage reaction time is 4min, and obtaining a regenerated extractant and an organic phase after back extraction;
(4) and (4) discharging the organic phase after the back extraction after the wastewater reaches the standard.
Example 3
This example is substantially the same as example 1, except that the process for extracting zinc from high-zinc waste hydrochloric acid comprises the following steps:
(1) storing high-zinc waste hydrochloric acid A with the zinc content below 9000mg/L in a waste hydrochloric acid raw material tank, and performing filter pressing on the high-zinc waste hydrochloric acid A by using a plate-and-frame filter press to obtain filtered high-zinc waste hydrochloric acid B without impurities, and storing the filtered high-zinc waste hydrochloric acid B into a waste hydrochloric acid storage tank;
(2) the method comprises the following steps of (1) uniformly mixing 20% of trioctyl decyl tertiary amine, 65% of No. 260 solvent oil and 15% of sec-octanol to prepare an extracting agent, performing secondary countercurrent extraction on zinc from high-zinc waste hydrochloric acid B at a flow ratio of 1.9:1, wherein the single-stage reaction time is 4.8min, and obtaining raffinate, namely hydrochloric acid C with the zinc content of 450mg/L and a zinc-containing loaded organic phase;
(3) the back extractant with the components of 1.8 percent of dilute sulfuric acid and a zinc-containing loaded organic phase are as follows: carrying out twice three-stage countercurrent contact on the stripping agent with the flow ratio of 1:1, wherein the single-stage reaction time is 4.8min, and obtaining a regenerated extracting agent and an organic phase after stripping;
(4) and (4) discharging the organic phase after the back extraction after the wastewater reaches the standard.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (10)
1. A zinc extraction process of high-zinc waste hydrochloric acid is characterized by comprising the following steps:
(1) storing high-zinc waste hydrochloric acid A with the zinc content of less than 10000mg/L in a waste hydrochloric acid raw material tank, and performing filter pressing on the high-zinc waste hydrochloric acid A by using a plate-and-frame filter press to obtain filtered high-zinc waste hydrochloric acid B without impurities, and storing the filtered high-zinc waste hydrochloric acid B into a waste hydrochloric acid storage tank;
(2) the method comprises the following steps of (1) uniformly mixing 20% of trioctyl decyl tertiary amine, 65% of No. 260 solvent oil and 15% of secondary octanol to prepare an extracting agent, performing secondary countercurrent extraction on zinc from high-zinc waste hydrochloric acid B at a flow ratio of 1.2-2:1, wherein the single-stage reaction time is 3-5min, and obtaining raffinate, namely hydrochloric acid C with the zinc content below 1000mg/L and a zinc-containing loaded organic phase;
(3) the back extractant with the components of 1-2% dilute sulfuric acid and a zinc-containing loaded organic phase are as follows: carrying out twice three-stage countercurrent contact on the back extractant at a flow ratio of 1:1, wherein the single-stage reaction time is 3-5min, and obtaining a regenerated extractant and a back-extracted organic phase;
(4) and (4) discharging the organic phase after the back extraction after the wastewater reaches the standard.
2. The process of claim 1, wherein the stripping agent is 2% dilute sulfuric acid.
3. The process for extracting zinc from high-zinc waste hydrochloric acid as claimed in claim 1, wherein the extractant and the high-zinc waste hydrochloric acid B are subjected to secondary countercurrent extraction of zinc at a flow ratio of 1.5: 1.
4. A plate-and-frame filter press for the process of extracting zinc from the high-zinc waste hydrochloric acid according to any one of claims 1 to 3, which comprises a frame and a main beam rail fixed on the frame, and is characterized by further comprising:
the filter plates are arranged on the main beam track and can move on the main beam track, and extension plates are fixed on two sides of each filter plate;
the cleaning support rails are fixed on the rack and positioned on two sides of the main beam rail;
the cleaning and transverse moving mechanism is arranged on the cleaning and supporting track and can move along the cleaning and supporting track, the cleaning and transverse moving mechanism comprises a lower shell, the bottom of the lower shell is provided with a track wheel which is in rolling connection with the cleaning and supporting track, and a moving driving mechanism for driving the track wheel to move is arranged in the lower shell;
the arm-tie mechanism, the arm-tie mechanism is including fixing the upper casing in lower floor's casing upper end, install annular conveying guide rail and spacing guided way in the upper casing, install the first speed reduction step motor of drive annular conveying guide rail operation in the lower casing, spacing guided way is located annular conveying guide rail periphery, annular conveying guide rail includes a plurality of equidistance distribution's that moves along its orbit sliding piece, all fixed mounting has flexible pushing equipment on the sliding piece, spacing guided way comprises guide section and introduction section, the interval equidistance setting of guide section and annular conveying guide rail, introduction section and annular conveying guide rail interval are greater than the interval of guide section and annular conveying guide rail, be in the compression state of keeping away from the extension board when flexible pushing equipment contacts with the guide section, the guide section leaves the arm-tie space that supplies flexible pushing equipment to stretch out to the state in order to cooperate with the extension board with the introduction section between the section, the leading-in section is used for contacting with the telescopic pushing mechanism and leading the telescopic pushing mechanism into the guiding section, the telescopic pushing mechanism conveys the filter plates of the points to be cleaned to the cleaning points in the plate pulling space and conveys the cleaned filter plates at the cleaning points to the stacking points, and the distances between the cleaning points and the points to be cleaned are equal to the distances between the cleaning points and the stacking points;
the telescopic pushing mechanism comprises a spring telescopic rod which is horizontally arranged and connected with a sliding piece, a pushing seat is installed at the end of the spring telescopic rod, a through groove is formed in the pushing seat, a shifting plate is hinged in the through groove, a sliding groove is formed in the inner wall of the through groove, a limiting block which is in contact fit with the shifting plate to adjust the angle of the shifting plate is slidably clamped in the sliding groove, a first transverse plate and a second transverse plate which are horizontally arranged and a vertical plate which is vertically and downwards arranged are fixed on a telescopic section of the spring telescopic rod, a nut is fixed on the first transverse plate, the nut is in threaded connection with a screw rod, one end of the screw rod is rotatably connected with the pushing seat, a rotary sleeve is rotatably installed on the second transverse plate through a bearing, the other end of the screw rod extends into the rotary sleeve and is provided with a sliding key, a key groove which is in key connection with the sliding key is formed in the inner wall of the rotary sleeve, a one-way gear and a first cylindrical gear are installed on the rotary sleeve, and a universal ball which is in rolling connection with a limiting guide rail is installed on the vertical plate; a first rack which is used for being meshed and matched with the first cylindrical gear is fixed in the upper shell and positioned on the inner side of the guide section;
the filter plate to the cleaning point department carries out abluent lift wiper mechanism, lift wiper mechanism includes the support of fixed mounting on upper casing, and lift actuating mechanism is installed at the support top, and slidable mounting has the wash rack that can follow the support and go up and down on the support, and the wash rack lower extreme is fixed with the backplate that two symmetries set up, and the cleaning roller is all installed to the backplate lower part, is close to be fixed with L shape pole on the backplate of stacking point one side, and L shape pole lower extreme is fixed with vertical setting and is used for and stacks the one-way gear engagement complex second rack of point department.
5. The plate-and-frame filter press for the high-zinc waste hydrochloric acid zinc extraction process according to claim 4, wherein the traveling driving mechanism comprises a second speed-reducing stepping motor installed in the lower shell, a first synchronous belt pulley is installed at the output end of the second speed-reducing stepping motor, a second synchronous belt pulley is installed at the shaft end of the rail wheel, and the first synchronous belt pulley and the second synchronous belt pulley are in transmission connection through a first synchronous transmission belt; and a third rack horizontally arranged is further installed on the rack, and a second cylindrical gear meshed and connected with the third rack is installed at the shaft end of the rail wheel.
6. The plate-and-frame filter press for the high-zinc waste hydrochloric acid zinc extraction process according to claim 4, wherein the lifting driving mechanism comprises a third speed-reducing stepping motor installed at the center of the top of the support and guide wheels located at two sides of the top of the support, a winding wheel is installed at the output end of the third speed-reducing stepping motor, guide grooves are formed in two sides of the support, guide trolleys are fixed on two sides of the top of the cleaning frame, rollers of the guide trolleys are in rolling connection with the guide grooves, pull ropes are installed on the guide wheels, and the pull ropes are connected with the guide trolleys after bypassing the guide wheels.
7. The plate-and-frame filter press for the process of extracting zinc from high-zinc waste hydrochloric acid according to claim 4, wherein the cleaning roller comprises a hollow roller, bristles fixed on the hollow roller, a hollow shaft and an adjusting shaft coaxially arranged at two sides of the hollow roller, the hollow shaft is rotatably mounted on the guard plate, one end of the hollow shaft extends out of the guard plate and is provided with a first belt pulley, the hollow shaft is connected with a high-pressure water supply pipe through a rotary joint, the high-pressure water supply pipe is provided with an electromagnetic valve, the hollow roller is provided with a plurality of water outlet holes, the inner side of the hollow roller is provided with two arc-shaped baffles arranged up and down, the arc-shaped baffles are connected through a connecting plate, the end faces of the arc-shaped baffles facing the hollow roller are provided with sealing gaskets in sliding sealing connection with the hollow roller, the area of the hollow roller between the arc-shaped baffles forms a water outlet area, and the adjusting shaft is connected with the hollow roller through a sealing bearing, install the torsional spring on the regulating spindle, the torsional spring other end is connected with the backplate, in the regulating spindle one end stretched into hollow roller and with connecting plate fixed connection, on the regulating spindle other end rotates the installation backplate.
8. The plate-and-frame filter press for the process of extracting zinc from the high-zinc waste hydrochloric acid according to claim 7, wherein one end of the adjusting shaft, which is far away from the hollow roller, extends out of the guard plate and is provided with a third synchronous pulley, the upper part of the guard plate is provided with a rotating shaft, the rotating shaft is provided with a fourth synchronous pulley and an adjusting plate, and the third synchronous pulley and the fourth synchronous pulley are in transmission connection through a second synchronous transmission belt; the adjusting plates on the two guard plates are arranged in a staggered way in opposite directions; be fixed with upper mount and lower floor's gag lever post on the support, upper mount installs upper gag lever post through the torsion axis of rotation, and the torsion axis of rotation provides the torsion that makes upper gag lever post spin in order with upper mount butt.
9. The plate-and-frame filter press for the process of extracting the zinc from the high-zinc waste hydrochloric acid according to claim 8, wherein when the cleaning roller descends to the bottom of the filter plate, the adjusting plate is in contact fit with the lower limiting rod; when the cleaning roller rises to the top of the filter plate, the adjusting plate is in contact fit with the upper limiting rod.
10. The plate-and-frame filter press for the process of extracting zinc from the high-zinc waste hydrochloric acid according to claim 7, wherein the cleaning frame is provided with a cleaning driving mechanism, the cleaning driving mechanism comprises a rotating motor arranged on the cleaning frame, two second belt pulleys in one-to-one correspondence with the first belt pulleys are arranged at the output end of the rotating motor, and the second belt pulleys are in transmission connection with the corresponding first belt pulleys through a transmission belt.
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| CN202110734978.0A CN113350878B (en) | 2021-07-02 | 2021-07-02 | High-zinc waste hydrochloric acid zinc extraction process and plate-and-frame filter press used for same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117101208A (en) * | 2023-10-16 | 2023-11-24 | 山西新源华康化工股份有限公司 | Plate frame filter |
| CN117482602A (en) * | 2023-12-28 | 2024-02-02 | 山东鲁控电力设备有限公司 | Filter press with self-cleaning function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1250210A (en) * | 1983-10-21 | 1989-02-21 | Walter Gremm | Process for the treatment of iron- and zinc- containing hydrochloric acid pickles |
| CN101474502A (en) * | 2008-12-30 | 2009-07-08 | 杭州兴源过滤机有限公司 | Mechanism for cleaning pressure filter press cloth and cleaning method thereof |
| CN105696010A (en) * | 2016-01-12 | 2016-06-22 | 惠州市斯瑞尔环境化工有限公司 | Method for recycling iron and zinc containing waste hydrochloric acid solution |
| CN105838886A (en) * | 2016-05-27 | 2016-08-10 | 赤峰中色锌业有限公司 | Method for extracting and recycling zinc from beneficiation tailing water of lead silver residues of zinc hydrometallurgy |
| CN111097210A (en) * | 2018-10-29 | 2020-05-05 | 江都区小纪镇恺胜体育用品厂 | Production equipment for copper mesh filter element |
| CN113044871A (en) * | 2021-03-30 | 2021-06-29 | 河北恒创环保科技有限公司 | Process for producing calcium chloride by using iron oxide black filtrate and fluidized bed drying device for production |
-
2021
- 2021-07-02 CN CN202110734978.0A patent/CN113350878B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1250210A (en) * | 1983-10-21 | 1989-02-21 | Walter Gremm | Process for the treatment of iron- and zinc- containing hydrochloric acid pickles |
| CN101474502A (en) * | 2008-12-30 | 2009-07-08 | 杭州兴源过滤机有限公司 | Mechanism for cleaning pressure filter press cloth and cleaning method thereof |
| CN105696010A (en) * | 2016-01-12 | 2016-06-22 | 惠州市斯瑞尔环境化工有限公司 | Method for recycling iron and zinc containing waste hydrochloric acid solution |
| CN105838886A (en) * | 2016-05-27 | 2016-08-10 | 赤峰中色锌业有限公司 | Method for extracting and recycling zinc from beneficiation tailing water of lead silver residues of zinc hydrometallurgy |
| CN111097210A (en) * | 2018-10-29 | 2020-05-05 | 江都区小纪镇恺胜体育用品厂 | Production equipment for copper mesh filter element |
| CN113044871A (en) * | 2021-03-30 | 2021-06-29 | 河北恒创环保科技有限公司 | Process for producing calcium chloride by using iron oxide black filtrate and fluidized bed drying device for production |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117101208A (en) * | 2023-10-16 | 2023-11-24 | 山西新源华康化工股份有限公司 | Plate frame filter |
| CN117101208B (en) * | 2023-10-16 | 2023-12-22 | 山西新源华康化工股份有限公司 | Plate frame filter |
| CN117482602A (en) * | 2023-12-28 | 2024-02-02 | 山东鲁控电力设备有限公司 | Filter press with self-cleaning function |
| CN117482602B (en) * | 2023-12-28 | 2024-03-22 | 山东鲁控电力设备有限公司 | Filter press with self-cleaning function |
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