A controllable pressure type iron ore concentrate dehydration device

Abstract

The present invention provides a controllable pressurized iron ore concentrate dehydration device, which relates to the technical field of iron ore concentrate processing equipment. The dehydration device includes an outer frame, a double-opening dehydration cylinder, a feeding assembly, a pressurizing assembly and a bearing dehydration plate unit. The double-opening dehydration cylinder is suspended, a rotatable bearing dehydration plate unit is provided at the bottom, and a rotating scraping component is provided at the top. The pressurizing component pressurizes and dehydrates the iron ore concentrate in the cylinder, and water stains fall into the water stain collection area of the aggregate trough through the bearing dehydration plate. After the dehydration is completed, the switching drive unit drives the aggregate trough to rotate so that the material collection area is aligned with the lower end of the cylinder, and at the same time drives the bearing dehydration plate to rotate to open the discharge port, and links the rotating scraping component to scrape off the iron ore concentrate adhered to the pressurizing assembly. The present invention realizes efficient dehydration, automatic unloading and self-cleaning of the filter press component, solves the problems of sticky material residue, incomplete separation and manual dependence of traditional equipment, and significantly improves the dehydration efficiency and automation level of iron ore concentrate.

Description

Technical Field

[0001] The present invention relates to the technical field of iron concentrate processing equipment, and more particularly to a controllable pressure type iron concentrate dehydration equipment. Background Art

[0002] Iron concentrate is ore powder processed from iron ore through crushing, ore dressing, etc., and is the main raw material for pellets. The fluctuation of the iron content therein will directly affect the quality of the finished pellet ore. The iron concentrate production process is as follows: add clear water and stir evenly, then grind through a stirring mill to a qualified grinding particle size, and then pass the mixture through a parallel magnetic field channel. The iron concentrate is attracted by the parallel magnetic field and evenly distributed in the magnetic field channel. The non-magnetic gangue naturally separates and falls off from the iron powder, and the water flow washes away the gangue, leaving only the iron concentrate, and finally through dehydration treatment.

[0003] The dehydration of iron concentrate mainly adopts methods such as vacuum filtration, centrifugal dehydration or mechanical pressure filtration. Among them, mechanical pressure filtration dehydration is to apply pressure to the iron concentrate through a pressing plate to squeeze the gaps between the iron concentrates, so as to squeeze out the water stains. The water stains penetrate through the pressure filtration holes on the filter plate to achieve the separation of the iron concentrate and the water stains. However, it is not easy for the iron concentrate to detach from the filter plate after dehydration, and it is necessary to disassemble the filter plate or invert the dehydration mechanism, and the operation is relatively cumbersome. The iron concentrate is likely to adhere to the pressing plate applying pressure and the dehydrated iron concentrate cannot be fully discharged. Summary of the Invention

[0004] The purpose of the present invention is to provide a controllable pressure type iron concentrate dehydration equipment to solve the technical problems raised in the background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A controllable pressure - type iron ore concentrate dehydration device, comprising an outer frame body, a double - opening dehydration cylinder body, a feeding assembly, a pressure - applying assembly, and a bearing dehydration plate unit. The double - opening dehydration cylinder body is installed on the outer frame body in a suspended state through a ring seat fixing frame. The feeding assembly is connected to the side wall of the double - opening dehydration cylinder body and is used to convey iron ore concentrate into the double - opening dehydration cylinder body. The bearing dehydration plate unit is arranged at the bottom port of the double - opening dehydration cylinder body, and the outer edge of the bearing dehydration plate unit is rotationally connected to the side wall of the double - opening dehydration cylinder body. There is a ring - shaped area near the top port of the double - opening dehydration cylinder body, and a rotating scraping component is rotatably installed at the ring - shaped area. The pressure - applying assembly is located inside the double - opening dehydration cylinder body, and the top of the pressure - applying assembly is connected to the top of the outer frame body. When the pressure - applying assembly is above the ring - shaped area, the part of the rotating scraping component extending to the center line of the double - opening dehydration cylinder body acts on the pressure - filtering part of the pressure - applying assembly through rotation. It also includes an aggregate tank and a switching drive unit. The switching drive unit is arranged on the outer frame body, and the aggregate tank is arranged at the bottom end of the switching drive unit. The aggregate tank has a separated water stain collection area and a material collection area. The switching drive unit is also connected to the rotating scraping component. The switching drive unit can drive the aggregate tank to rotate around the center of the switching drive unit at the lower end of the double - opening dehydration cylinder body, and the switching drive unit also drives the rotating scraping component to rotate. The aggregate tank can act on the bottom of the bearing dehydration plate unit in a moving state, so that the bearing dehydration plate unit rotates horizontally around its connection with the double - opening dehydration cylinder body.

[0007] On the basis of the above - mentioned technical solution, the present invention also provides the following optional technical solutions:

[0008] In an optional solution: The rotating scraping component includes a scraping rotating ring and a plurality of elastic scraping strips. The scraping rotating ring is rotatably arranged inside the ring - shaped area, and the outer wall of the scraping rotating ring has a rotating external connection part connected to the switching drive unit. A plurality of elastic scraping strips are circumferentially distributed inside the scraping rotating ring and are connected thereto. The ends of the plurality of scraping rotating rings far from the inner wall of the scraping rotating ring converge at the center of the rotating external connection part.

[0009] In an optional solution: Both the upper and lower surfaces of the scraping rotating ring have convex ring parts. Ring grooves are respectively opened between the upper and lower walls of the ring - shaped area. The convex ring parts are correspondingly clamped into the ring grooves and can rotate and move inside them.

[0010] In an optional solution: The inner diameter of the scraping rotating ring is larger than the inner diameter of the double - opening dehydration cylinder body. Axial grooves for accommodating the elastic scraping strips are provided on the inner wall of the top of the double - opening dehydration cylinder body.

[0011] In an alternative solution: the rotary external connection part is a semi-circular gear ring, and the switching drive unit includes a switching main shaft, a switching connecting seat, a switching motor, and a scraping rack part. The switching main shaft is rotatably arranged on the outer frame body, the top of the switching main shaft is connected to the output end of the switching motor, the switching connecting seat is arranged at the bottom of the switching main shaft and is connected to the outer wall of the aggregate tank, and the scraping rack part is installed on the switching main shaft through a scraping bracket, and the scraping rack part meshes with the rotary external connection part.

[0012] In an alternative solution: the pressing assembly includes a movable pressing plate part, a fixed pressing plate part, and a filter pressing cylinder. The filter pressing cylinder is fixed on the outer frame body and the lower end of the filter pressing cylinder is connected to the upper surface of the fixed pressing plate part. The edge of the movable pressing plate part is in contact with the inner wall of the double-opening dewatering cylinder body, and a plurality of pressing columns are arranged on the upper end surface of the movable pressing plate part. The top of the pressing column slides through the fixed pressing plate part, and an upper buffer plate is arranged at the top of the pressing column, and a buffer spring part is connected between the upper buffer plate and the upper surface of the fixed pressing plate part.

[0013] In an alternative solution: the feeding assembly includes a quantitative feeding unit and a stock bin. The stock bin is arranged at the top of the outer frame body and the stock bin is connected to the quantitative feeding unit through a guide pipe. The quantitative feeding unit includes a feeding cylinder and a feeding auger part. The feeding cylinder is arranged on the outer wall of the double-opening dewatering cylinder body and is communicated with it. The feeding auger part is arranged inside the feeding cylinder. One end of the main shaft of the feeding auger part is rotatably connected to the end wall of the feeding cylinder and is connected to the output end of the feeding motor arranged at the end of the feeding auger part. The outer wall of the end of the feeding cylinder away from the double-opening dewatering cylinder body is connected to the end of the guide pipe.

[0014] In an alternative solution: the water stain collection area and the material collection area are separated by a partition member, and the ends of the water stain collection area and the material collection area away from each other are both circular in shape. The inner diameter of the circular parts of the water stain collection area and the material collection area is larger than the outer diameter of the double-opening dewatering cylinder body; at least one push rod member is arranged on the partition member. The load-bearing dewatering plate unit includes a dewatering plate frame, a dewatering plate part, and a side connecting seat. The dewatering plate frame is arranged on the outer edge of the dewatering plate part. The diameter of the dewatering plate part is the same as the outer diameter of the double-opening dewatering cylinder body. The side connecting seat is arranged on the side of the dewatering plate frame, and the side connecting seat is rotatably connected to the outer wall of the double-opening dewatering cylinder body through a hairspring bearing. A radial plate bar is arranged at the bottom of the dewatering plate frame, and when the push rod member passes through the bottom of the dewatering plate frame, it abuts against the surface of the radial plate bar.

[0015] In an alternative solution: the push rod member is rotatably matched with the partition member, and a plurality of vibration protrusions are evenly distributed on the contact surface between the radial plate bar and the push rod member.

[0016] In an alternative solution: a reinforcing ring is provided at a position on the outer wall of the double-opening dewatering cylinder near the bottom port, and two lower flat hooks capable of hooking the edge of the dewatering plate frame are provided on the reinforcing ring. One of the lower flat hooks is on the same diameter as the side connection seat and the other lower flat hook is on the side close to the material collection area. An upper flat hook is provided at the edge of the dewatering plate frame on the side close to the water stain collection area, and the upper flat hook can hook the reinforcing ring.

[0017] Adopting the above technical solution, the present invention has the following beneficial effects:

[0018] In the controllable pressure iron ore concentrate dewatering equipment provided by the present invention, through the reciprocating pressure of the pressure component, the dewatering rate of the iron ore concentrate is significantly improved and the moisture residue is reduced; the rotary scraping component is linked with the switching drive unit to automatically scrape the iron ore concentrate adhered to the pressure filtration part, avoiding manual intervention; the partition design of the aggregate tank realizes the classified collection of water stains and dry materials, preventing secondary mixing; the load-bearing dewatering plate unit can rotate horizontally, and cooperate with the switching of the aggregate tank to realize the rapid conversion between the sealed dewatering state and the open discharging state; the integrated structure design supports the automatic processes of feeding, pressurizing and discharging, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the dewatering equipment in an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the double-opening dewatering cylinder in an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the rotary scraping component in an embodiment of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the switching drive unit in an embodiment of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the pressure component in an embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of one perspective structure of the load-bearing dewatering plate unit in an embodiment of the present invention.

[0026] Figure 7Schematic diagram of another perspective structure of the bearing dehydration plate unit in an embodiment of the present invention.

[0027] Annotation of reference numerals: outer frame body 100, ring seat fixing frame 110, double-opening dehydration cylinder body 200, annular port area 210, reinforcement ring 220, lower flat hook 230, pressurizing assembly 300, movable pressing plate member 310, fixed pressing plate member 320, filter pressing cylinder 330, pressing column 340, upper buffer plate 350, buffer spring member 360, quantitative feeding unit 400, feeding cylinder 410, feeding auger part 420, feeding motor 430, preparation bin 440, guide pipe 450, bearing dehydration plate unit 500, dehydration plate frame 510, dehydration plate member 520, side connection seat 530, radial plate strip 540, upper flat hook 550, vibration protrusion 560, aggregate trough 600, partition member 610, water stain collection area 620, material collection area 630, push rod member 640, switching drive unit 700, switching main shaft 710, switching connection seat 720, switching motor 730, scraping support 740, scraping rack part 750, rotary scraping member 800, scraping rotary ring 810, rotary external connection part 820, elastic scraping strip 830, convex ring part 840. Detailed implementation manners

[0028] Next, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] The left-right, up-down positions of the various components shown in the drawings are only an arrangement manner, and the specific positions are set according to specific needs.

[0030] In one embodiment, as Figures 1-4As shown in the figure, a controllable pressure - type iron ore concentrate dehydration device includes an outer frame body 100, a double - opening dehydration cylinder body 200, a feeding assembly, a pressure - applying assembly 300, and a bearing dehydration plate unit 500. The double - opening dehydration cylinder body 200 is installed on the outer frame body 100 in a suspended state through a ring seat fixing frame 110. The feeding assembly is connected to the side wall of the double - opening dehydration cylinder body 200 and is used for conveying iron ore concentrate into the double - opening dehydration cylinder body 200. The bearing dehydration plate unit 500 is arranged at the bottom port of the double - opening dehydration cylinder body 200, and the outer edge of the bearing dehydration plate unit 500 is rotatably connected to the side wall of the double - opening dehydration cylinder body 200. The double - opening dehydration cylinder body 200 has a ring - shaped area 210 near the top port, and a rotary scraping member 800 is rotatably installed at the ring - shaped area 210. The pressure - applying assembly 300 is located inside the double - opening dehydration cylinder body 200, and the top of the pressure - applying assembly 300 is connected to the top of the outer frame body 100. When the pressure - applying assembly 300 is on the upper side of the ring - shaped area 210, the part of the rotary scraping member 800 extending to the center line of the double - opening dehydration cylinder body 200 acts on the pressure - filtering part of the pressure - applying assembly 300 through rotation. It also includes an aggregate tank 600 and a switching drive unit 700. The switching drive unit 700 is arranged on the outer frame body 100, and the aggregate tank 600 is arranged at the bottom end of the switching drive unit 700. The aggregate tank 600 has a separated water stain collection area 620 and a material collection area 630. The switching drive unit 700 is also connected to the rotary scraping member 800. The switching drive unit 700 can drive the aggregate tank 600 to rotate around the center of the switching drive unit 700 at the lower end of the double - opening dehydration cylinder body 200, and the switching drive unit 700 also drives the rotary scraping member 800 to rotate. The aggregate tank 600 can act on the bottom of the bearing dehydration plate unit 500 in a moving state, so that the bearing dehydration plate unit 500 rotates horizontally around its connection with the double - opening dehydration cylinder body 200.

[0031] In the embodiment of the present invention, in the initial state, the bearing dehydration plate unit 500 is located at the bottom of the lower port of the double-opening dehydration cylinder 200 and covers it, and the water stain collection area 620 is opposite to the lower port of the double-opening dehydration cylinder 200; the feeding assembly works and conveys iron ore concentrate from the side of the double-opening dehydration cylinder 200 into the double-opening dehydration cylinder 200, and the iron ore concentrate is concentrated on the bearing dehydration plate unit 500 at the bottom port of the double-opening dehydration cylinder 200; the pressurizing assembly 300 works and moves towards the bearing dehydration plate unit 500 inside the double-opening dehydration cylinder 200, and the bottom pressure filtration part of the pressurizing assembly 300 acts on the iron ore concentrate on the bearing dehydration plate unit 500 and applies pressure. After the iron ore concentrate is pressurized, dehydration occurs, and the water stains pass through the pressure filtration holes of the bearing dehydration plate unit 500 and fall into the water stain collection area 620; the pressurizing assembly 300 can reciprocate to apply pressure to the iron ore concentrate to improve the dehydration effect; after the iron ore concentrate is dehydrated, the pressurizing assembly 300 moves back to the initial position. At this time, the part of the rotary scraping member 800 extending to the center line of the double-opening dehydration cylinder 200 contacts the pressure filtration surface at the bottom of the rotary scraping member 800; the switching drive unit 700 works and drives the aggregate trough 600 and the rotary scraping member 800 to rotate. The aggregate trough 600 rotates around the connection with the switching drive unit 700 so that the material collection area 630 rotates to directly below the double-opening dehydration cylinder 200. During the rotation of the aggregate trough 600, it acts on the bottom of the bearing dehydration plate unit 500, so that the bearing dehydration plate unit 500 rotates horizontally around its connection with the outer wall of the double-opening dehydration cylinder 200. At this time, the bearing dehydration plate unit 500 gradually rotates to a position misaligned with the double-opening dehydration cylinder 200, and the bottom port of the double-opening dehydration cylinder 200 opens. Then, the iron ore concentrate that has been dehydrated inside the double-opening dehydration cylinder 200 falls into the material collection area 630 for centralized collection. At the same time, the switching drive unit 700 also drives the rotary scraping member 800 to rotate, and the part of the rotary scraping member 800 extending to the center of the double-opening dehydration cylinder 200 acts on the pressure filtration part of the pressurizing assembly 300 through rotation to scrape off the iron ore concentrate adhered to the pressure filtration part of the pressurizing assembly 300, so that it automatically falls off, thereby fully discharging the iron ore concentrate that has been dehydrated, and also avoiding the influence of the iron ore concentrate adhered to the pressure filtration part of the pressurizing assembly 300 on the subsequent pressure filtration dehydration work of the iron ore concentrate to be dehydrated, and further realizing precise control of the pressure filtration dehydration work of the iron ore concentrate.

[0032] In one embodiment, as Figures 1-4As shown, the rotating scraper component 800 includes a scraper rotating ring 810 and a plurality of elastic scraper strips 830, the scraper rotating ring 810 is rotatably arranged inside the ring mouth area 210 and the outer wall of the scraper rotating ring 810 has a rotating external portion 820 connected to the switching drive unit 700, and the plurality of elastic scraper strips 830 are circumferentially distributed inside the scraper rotating ring 810 and connected thereto, and the ends of the plurality of scraper rotating rings 810 away from the inner wall of the scraper rotating ring 810 converge at the center of the rotating external portion 820; in the embodiment of the present invention, since the elastic scraper strips 830 have the property of being bendable and deformable, when the pressurizing component 300 passes through the scraper rotating ring 810, the pressurizing component 300 The multiple elastic scraper strips 830 will be stretched out to make them in a vertical state, and the stretched elastic scraper strips 830 will not block the pressure component 300 from passing through the scraper ring 810; when the pressure component 300 is on the upper side of the scraper ring 810, the elastic scraper strips 830 return to a horizontal state and contact the bottom of the pressure component 300, and the switching drive unit 700 drives the scraper ring 810 to rotate by rotating the external connection part 820. The scraper ring 810 rotates around the center line of the double-opening dehydration cylinder 200 and drives the elastic scraper strips 830 to rotate. The elastic scraper strips 830 can act on the bottom of the pressure component 300 and scrape off the iron ore powder adhered to its bottom to ensure that the iron ore powder is completely removed.

[0033] In one embodiment, Figures 1-4 As shown, the scraper rotating ring 810 has a convex ring portion 840 on the upper and lower surfaces, and an annular groove is opened between the upper and lower walls of the ring mouth area 210. The convex ring portion 840 is correspondingly inserted into the annular groove and can rotate and move therein; in the embodiment of the present invention, the setting of the annular groove and the convex ring portion 840 can make the scraper rotating ring 810 accurately and stably rotate around the center line of the double-opening dehydration cylinder 200, so that the multiple elastic scraping strips 830 can fully act on the lower end surface of the pressure component 300 to fully scrape off the iron ore concentrate.

[0034] In this embodiment, the inner diameter of the scraper swivel 810 is larger than the inner diameter of the double-opening dehydration cylinder 200, and the inner wall at the top of the double-opening dehydration cylinder 200 has an axial groove that can accommodate the elastic scraper strip 830; the inner diameter of the scraper swivel 810 is larger than the inner diameter of the double-opening dehydration cylinder 200, which means that the space inside the scraper swivel 810 is larger. When the pressure component 300 passes through the inside of the scraper swivel 810, the gap between the pressure component 300 and the inner wall of the scraper swivel 810 is relatively large. After the pressure component 300 pushes away multiple elastic scrapers 830, the elastic scraper strip 830 can be placed in the axial groove through the larger space inside the scraper swivel 810, thereby reducing the resistance of the elastic scraper strip 830 to the movement of the pressure component 300.

[0035] In one embodiment, Figures 1-4As shown, the rotary external connection part 820 is a semi-circular gear ring. The switching drive unit 700 includes a switching main shaft 710, a switching connection seat 720, a switching motor 730, and a scraping rack part 750. The switching main shaft 710 is rotatably arranged on the outer frame 100. The top of the switching main shaft 710 is connected to the output end of the switching motor 730. The switching connection seat 720 is arranged at the bottom of the switching main shaft 710 and is connected to the outer wall of the aggregate tank 600. The scraping rack part 750 is installed on the switching main shaft 710 through a scraping bracket 740, and the scraping rack part 750 meshes with the rotary external connection part 820. In an embodiment of the present invention, when the switching motor 730 operates and drives the switching main shaft 710 to rotate, the switching main shaft 710 drives the switching connection seat 720 and the scraping bracket 740 to rotate, and the scraping bracket 740 drives the aggregate tank 600 to rotate, so as to realize the position adjustment of the water stain collection area 620 and the material collection area 630, so as to separately collect the water stains and iron concentrate after pressure filtration. The scraping rack part 750 rotates following the scraping bracket 740 and makes the scraping rotating ring 810 rotate through meshing with the rotary external connection part 820, so as to scrape the iron concentrate adhered to the bottom of the pressurizing assembly 300 through the rotation of the elastic scraping strip 830.

[0036] In one embodiment, as Figure 1 、 Figure 2 and Figure 5As shown, the pressing assembly 300 includes a movable pressing plate member 310, a fixed pressing plate member 320, and a filter pressing cylinder 330. The filter pressing cylinder 330 is fixed on the outer frame body 100, and the lower end of the filter pressing cylinder 330 is connected to the upper surface of the fixed pressing plate member 320. The edge of the movable pressing plate member 310 is in contact with the inner wall of the double-opening dewatering cylinder 200, and a plurality of pressing columns 340 are arranged on the upper end surface of the movable pressing plate member 310. The top of the pressing column 340 slides through the fixed pressing plate member 320, and an upper buffer plate 350 is arranged at the top of the pressing column 340. The upper buffer plate 350 is connected to the upper surface of the fixed pressing plate member 320 through a buffer spring member 360. In the embodiment of the present invention, the filter pressing cylinder 330 adjusts the position of the fixed pressing plate member 320 through its own expansion and contraction, so that the movable pressing plate member 310 follows the fixed pressing plate member 320 and moves inside the double-opening dewatering cylinder 200. When the pressing assembly 300 presses the iron concentrate, the bottom end surface of the movable pressing plate member 310 first contacts the iron concentrate. At this time, the movable pressing plate member 310 no longer follows the fixed pressing plate member 320 downward due to the obstruction of the iron concentrate. The fixed pressing plate member 320 continues to move downward and approaches the movable pressing plate member 310. The pressing column 340 moves relative to the fixed pressing plate member 320 and stretches the buffer spring member 360. Due to the elastic force of the buffer spring member 360 restoring deformation, the movable pressing plate member 310 gradually increases the downward pressure on the iron concentrate to achieve pressure dewatering of the iron concentrate; avoiding excessive pressure impact on the iron concentrate, thereby increasing the impact on the bearing dewatering plate unit 500 and causing damage to the bearing dewatering plate unit 500; the buffer spring member 360 can effectively play a role in buffering the impact and does not affect the pressure of filter pressing and dewatering.

[0037] In one embodiment, as Figure 1 and Figure 2 shown, the feeding assembly includes a quantitative feeding unit 400 and a stock bin 440. The stock bin 440 is arranged on the top of the outer frame body 100, and the stock bin 440 is connected to the quantitative feeding unit 400 through a guide pipe 450. The quantitative feeding unit 400 includes a feeding cylinder 410 and a feeding auger part 420. The feeding cylinder 410 is arranged on the outer wall of the double-opening dewatering cylinder 200 and is communicated with it. The feeding auger part 420 is arranged inside the feeding cylinder 410. One end of the main shaft of the feeding auger part 420 is rotatably connected to the end wall of the feeding cylinder 410 and is connected to the output end of a feeding motor 430 arranged at the end of the feeding auger part 420. The outer wall of the end of the feeding cylinder 410 away from the double-opening dewatering cylinder 200 is connected to the end of the guide pipe 450. In the embodiment of the present invention, the iron concentrate inside the stock bin 440 enters the inside of the feeding cylinder 410 through the guide pipe 450. The feeding cylinder 410 rotates under the drive of the feeding motor 430 and conveys the iron concentrate to the inside of the double-opening dewatering cylinder 200 in a spiral manner. By controlling the rotation speed and time of the feeding motor 430, the accurate and quantitative feeding of the iron concentrate can be realized.

[0038] In one embodiment, asFigure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the water stain collection area 620 and the material collection area 630 are separated by a partition member 610, and the end portions of the water stain collection area 620 and the material collection area 630 that are far away from each other are both circular in shape. The inner diameter of the circular portions of the water stain collection area 620 and the material collection area 630 is greater than the outer diameter of the double-opening dewatering cylinder 200; at least one push rod member 640 is provided on the partition member 610. The load-bearing dewatering plate unit 500 includes a dewatering plate frame 510, a dewatering plate member 520, and a side connection seat 530. The dewatering plate frame 510 is provided at the outer edge of the dewatering plate member 520. The diameter of the dewatering plate member 520 is the same as the outer diameter of the double-opening dewatering cylinder 200. The side connection seat 530 is provided at the side of the dewatering plate frame 510, and the side connection seat 530 is rotatably connected to the outer wall of the double-opening dewatering cylinder 200 through a hairspring bearing. A radial plate strip 540 is provided at the bottom of the dewatering plate frame 510. When the push rod member 640 passes through the bottom of the dewatering plate frame 510, it abuts against the surface of the radial plate strip 540. In the embodiment of the present invention, the diameter of the dewatering plate member 520 is the same as the outer diameter of the double-opening dewatering cylinder 200, which can ensure that the water stains generated by the pressure filtration and dehydration of the iron ore concentrate inside the double-opening dewatering cylinder 200 can all pass through the pressure filtration holes of the dewatering plate member 520, and the water stains generated by the pressure filtration can be discharged in time; when the material collection area 630 rotates downward to the lower part of the double-opening dewatering cylinder 200, the push rod member 640 rotates following the partition member 610 and gradually approaches the radial plate strip 540. After the push rod member 640 abuts against the radial plate strip 540, the push rod member 640 pushes the radial plate strip 540 and causes the dewatering plate frame 510 and the dewatering plate member 520 to rotate around the side connection seat 530. At this time, the bottom port of the double-opening dewatering cylinder 200 gradually opens, and the opened part is located above the material collection area 630, so that the iron ore concentrate after pressure filtration and dehydration gradually falls into the interior of the material collection area 630; when the water stain collection area 620 rotates downward to the lower part of the double-opening dewatering cylinder 200, since the push rod member 640 moves following the partition member 610 and does not apply a thrust to the radial plate strip 540, due to the action of the hairspring bearing, the dewatering plate frame 510 and the dewatering plate member 520 gradually rotate back and move back to the initial position, and the dewatering plate frame 510 and the dewatering plate member 520 cover the bottom port of the double-opening dewatering cylinder 200. Furthermore, the automatic opening and closing of the lower port of the double-opening dewatering cylinder 200 can be realized according to the positions of the water stain collection area 620 and the material collection area 630, realizing automatic discharging and ensuring separate collection of the iron ore concentrate and the water stains.

[0039] In one embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7As shown, the push rod member 640 is rotationally engaged with the partition member 610, and a plurality of vibration protrusions 560 are evenly distributed on the contact surface between the radial slats 540 and the push rod member 640; in an embodiment of the present invention, the vibration protrusions 560 are semi-circular in shape. When the push rod member 640 moves following the partition member 610 and pushes the radial slats 540, the push rod member 640 will relatively move with respect to the contact surface of the radial slats 540. Due to the existence of the vibration protrusions 560 and the spring bearing, vibrations will be generated between the push rod member 640 and the radial slats 540. This vibration is transmitted to the dewatering plate frame 510 and the dewatering plate member 520, thereby shaking off the water stains on the dewatering plate member 520 and at the same time shaking off the iron ore fines on the edge of the dewatering plate member 520 from the side close to the material collection area 630.

[0040] In one embodiment, as Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 and Figure 7 shown, a reinforcing ring 220 is provided at a position on the outer wall of the double-opening dewatering cylinder 200 close to the bottom port. Two lower flat hooks 230 capable of hooking the edge of the dewatering plate frame 510 are provided on the reinforcing ring 220. One of the lower flat hooks 230 is on the same diameter as the side connection seat 530 and the other lower flat hook 230 is located on the side close to the material collection area 630. An upper flat hook 550 is provided on the edge of the dewatering plate frame 510 on the side close to the water stain collection area 620, and the upper flat hook 550 can hook the reinforcing ring 220; in an embodiment of the present invention, when the dewatering plate frame 510 and the dewatering plate member 520 are directly below the double-opening dewatering cylinder 200 and pressure filtration dewatering is carried out, the upper flat hook 550 hooks the reinforcing ring 220, and the two lower flat hooks 230 hook the dewatering plate frame 510, thereby restricting the dewatering plate frame 510 from all around, increasing its load-bearing capacity, and preventing the dewatering plate unit 500 from being broken at the side connection seat 530 due to pressure. And since the upper flat hook 550 moves following the dewatering plate frame 510 and there is no lower flat hook 230 blocking on the side of the reinforcing ring 220 facing the water stain collection area 620, it ensures the orderly rotation of the dewatering plate frame 510 and the dewatering plate member 520 to realize the normal opening and closing of the bottom port of the double-opening dewatering cylinder 200.

[0041] The above embodiments provide a controllable pressure - type iron ore concentrate dewatering device. Among them, in the initial state, the dewatering plate member 520 is located at the bottom port of the double - opening dewatering cylinder 200 and covers it. The iron ore concentrate inside the stock bin 440 enters the inside of the feeding cylinder 410 through the feeding pipe 450. The feeding cylinder 410 rotates driven by the feeding motor 430 and conveys the iron ore concentrate to the inside of the double - opening dewatering cylinder 200 in a spiral manner; the pressure - filtering cylinder 330 adjusts the position of the fixed pressing plate member 320 through its own expansion and contraction, so that the movable pressing plate member 310 follows the fixed pressing plate member 320 and moves inside the double - opening dewatering cylinder 200. When the pressure - filtering assembly 300 pressure - filters the iron ore concentrate, the bottom end surface of the movable pressing plate member 310 first contacts the iron ore concentrate. At this time, the movable pressing plate member 310 no longer follows the fixed pressing plate member 320 downwards due to the obstruction of the iron ore concentrate. The fixed pressing plate member 320 continues to move downwards and approaches the movable pressing plate member 310. The pressure column 340 moves relative to the fixed pressing plate member 320 and stretches the buffer spring member 360. Due to the elastic force of the buffer spring member 360 restoring deformation, the movable pressing plate member 310 gradually increases the downward pressure on the iron ore concentrate to achieve pressure dewatering of the iron ore concentrate; the switching motor 730 works and drives the switching main shaft 710 to rotate. The switching main shaft 710 drives the switching connecting seat 720 and the scraping support 740 to rotate. The scraping support 740 drives the aggregate trough 600 to rotate, thereby realizing the position adjustment of the water stain collection area 620 and the material collection area 630 to separately collect the water stains and iron ore concentrate after pressure - filtering; the scraping rack part 750 follows the scraping support 740 to rotate and makes the scraping rotary ring 810 rotate through meshing with the rotary external part 820, so as to scrape the iron ore concentrate adhered to the bottom of the pressure - filtering assembly 300 through the rotation of the elastic scraping strip 830; when the material collection area 630 rotates downward to the lower part of the double - opening dewatering cylinder 200, the push rod member 640 follows the partition member 610 to rotate and gradually approaches the radial plate strip 540. After the push rod member 640 abuts against the radial plate strip 540, the push rod member 640 pushes the radial plate strip 540 and makes the dewatering plate frame 510 and the dewatering plate member 520 rotate around the side connecting seat 530. At this time, the bottom port of the double - opening dewatering cylinder 200 gradually opens and the opened part is located above the material collection area 630, so that the iron ore concentrate after pressure - filtering and dewatering gradually falls into the inside of the material collection area 630.

[0042] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

Claims

1. A controllable pressure type iron ore concentrate dehydration device, comprising an outer frame body, a double-opening dehydration cylinder body, a feeding assembly, a pressurizing assembly and a bearing dehydration plate unit. The double-opening dehydration cylinder body is installed on the outer frame body in a suspended state through a ring seat fixing frame. The feeding assembly is connected to the side wall of the double-opening dehydration cylinder body and is used for conveying iron ore concentrate into the double-opening dehydration cylinder body. It is characterized in that, The load-bearing dewatering plate unit is provided at the bottom port of the double-opening dewatering cylinder, and the outer edge of the load-bearing dewatering plate unit is rotatably connected to the side wall of the double-opening dewatering cylinder; The double-opening dewatering cylinder has an annular area near the top port, and a rotating scraping component is rotatably installed at the annular area. The pressurizing component is located inside the double-opening dewatering cylinder, and the top of the pressurizing component is connected to the top of the outer frame; When the pressurizing component is above the annular area, the part of the rotating scraping component extending to the center line of the double-opening dewatering cylinder acts on the pressure filtration part of the pressurizing component through rotation; It further includes an aggregate tank and a switching drive unit; The switching drive unit is provided on the outer frame, and the aggregate tank is provided at the bottom end of the switching drive unit. The aggregate tank has a separated water stain collection area and a material collection area. The switching drive unit is also connected to the rotating scraping component. The switching drive unit can drive the aggregate tank to rotate around the center of the switching drive unit at the lower end of the double-opening dewatering cylinder, and the switching drive unit also drives the rotating scraping component to rotate; The aggregate tank can act on the bottom of the load-bearing dewatering plate unit in a moving state, so that the load-bearing dewatering plate unit rotates horizontally around its connection with the double-opening dewatering cylinder; The rotating scraping component includes a scraping rotating ring and a plurality of elastic scraping strips; The scraping rotating ring is rotatably arranged inside the annular area, and the outer wall of the scraping rotating ring has a rotating external connection part connected to the switching drive unit. A plurality of elastic scraping strips are circumferentially distributed inside the scraping rotating ring and connected thereto. The ends of the plurality of scraping rotating rings far from the inner wall of the scraping rotating ring converge at the center of the rotating external connection part.

2. The controllable pressure type iron concentrate dewatering equipment according to claim 1, wherein Both the upper and lower surfaces of the scraping rotating ring have convex ring parts, and annular grooves are formed between the upper and lower walls of the annular area. The convex ring parts are correspondingly clamped into the annular grooves and can rotate and move inside them.

3. The controllable pressure type iron ore concentrate dehydration equipment according to claim 1, characterized in that, The inner diameter of the scraping rotating ring is larger than the inner diameter of the double-opening dewatering cylinder, and an axial groove for accommodating the elastic scraping strip is provided on the inner wall at the top of the double-opening dewatering cylinder.

4. The controllable pressure type iron ore concentrate dehydration equipment according to claim 1, wherein The rotating external connection part is a semi-circular gear ring. The switching drive unit includes a switching main shaft, a switching connection seat, a switching motor, and a scraping rack part. The switching main shaft is rotatably arranged on the outer frame, the top of the switching main shaft is connected to the output end of the switching motor, the switching connection seat is arranged at the bottom of the switching main shaft and connected to the outer wall of the aggregate tank, and the scraping rack part is installed on the switching main shaft through a scraping support and meshes with the rotating external connection part.

5. The controllable pressure type iron ore concentrate dehydration equipment according to claim 1, characterized in that, The pressurizing component includes a movable pressing plate part, a fixed pressing plate part, and a pressure filtration cylinder; The pressure filtration cylinder is fixed on the outer frame, and the lower end of the pressure filtration cylinder is connected to the upper surface of the fixed pressing plate part. The edge of the movable pressing plate part is in contact with the inner wall of the double-opening dewatering cylinder, and a plurality of pressing columns are arranged on the upper end surface of the movable pressing plate part. The top of the pressing column slides through the fixed pressing plate part, and an upper buffer plate is arranged at the top of the pressing column and is connected to the upper surface of the fixed pressing plate part through a buffer spring part.

6. The controllable pressure type iron ore concentrate dehydration equipment according to claim 1, characterized in that The feeding component includes a quantitative feeding unit and a stock preparation bin; The stock preparation bin is arranged on the top of the outer frame, and the stock preparation bin is connected to the quantitative feeding unit through a feeding pipe. The quantitative feeding unit includes a feeding cylinder and a feeding auger part. The feeding cylinder is arranged on the outer wall of the double-opening dewatering cylinder and is communicated with it; The material conveying auger part is arranged inside the material conveying cylinder. One end of the main shaft of the material conveying auger part is rotatably connected to the end wall of the material conveying cylinder and is connected to the output end of the material conveying motor arranged at the end of the material conveying auger part. The outer wall of the end of the material conveying cylinder far from the double-opening dewatering cylinder body is connected to the end of the guide pipe.

7. The controllable pressure type iron ore concentrate dewatering equipment according to any one of claims 1-6, characterized in that The water stain collection area and the material collection area are separated by a partition member, and the ends of the water stain collection area and the material collection area far from each other are both circular in shape. The inner diameters of the circular parts of the water stain collection area and the material collection area are larger than the outer diameter of the double-opening dewatering cylinder body; At least one push rod member is arranged on the partition member, and the bearing dewatering plate unit includes a dewatering plate frame, a dewatering plate member and a side connection seat; The dewatering plate frame is arranged on the outer edge of the dewatering plate member. The diameter of the dewatering plate member is the same as the outer diameter of the double-opening dewatering cylinder body. The side connection seat is arranged on the side of the dewatering plate frame, and the side connection seat is rotatably connected to the outer wall of the double-opening dewatering cylinder body through a hairspring bearing. Radial strips are arranged at the bottom of the dewatering plate frame and abut against the surface of the radial strips when the push rod member passes through the bottom of the dewatering plate frame.

8. The controllable pressure type iron ore concentrate dehydration equipment according to claim 7, characterized in that, The push rod member is rotationally matched with the partition member, and a plurality of vibration protrusions are arranged at equal intervals on the contact surface between the radial strip and the push rod member.

9. The controllable pressure type iron ore concentrate dehydration equipment according to claim 7, characterized in that, A reinforcing ring is arranged at a position on the outer wall of the double-opening dewatering cylinder body close to the bottom port. Two lower flat hooks capable of hooking the edge of the dewatering plate frame are arranged on the reinforcing ring. One of the lower flat hooks is on the same diameter as the side connection seat, and the other lower flat hook is located on the side close to the material collection area; An upper flat hook is arranged on the edge of the dewatering plate frame on the side close to the water stain collection area, and the upper flat hook can hook the reinforcing ring.

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