Quartz sand purification pickling equipment

Abstract

A quartz sand purification pickling equipment belongs to the technical field of quartz sand pickling and comprises a liquid discharge system for realizing up-down partitioned liquid discharge in a tank body, the liquid discharge system comprising a liquid discharge valve, a liquid discharge port, a barrel, a rotary lifting assembly and a negative pressure discharge assembly, the liquid discharge valve being arranged in the middle and lower part of the side wall of the tank body and being used for discharging the upper layer liquid in the inner cavity of the tank body, the liquid discharge port being arranged in the side wall of the negative pressure bin and being used for discharging the lower layer liquid in the inner cavity of the tank body, and the barrel being rotatably arranged in the inner cavity of the tank body and being provided with uniform through holes in the side wall and the bottom end of the barrel, the through holes being smaller than the diameter of quartz sand. The integrated design of the present application eliminates the transfer cost and space occupation problem of the traditional process, the up-down partitioned liquid discharge is combined to improve the efficiency and completeness of the liquid discharge, the water washing consumption is reduced and the product purity is ensured, the same power driving and differential structure design are used to ensure the precise cooperation of the double liquid discharge actions while simplifying the equipment and saving the space.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of quartz sand pickling, and particularly relates to a quartz sand purification pickling equipment. BACKGROUND

[0002] The quartz sand pickling process mainly includes raw material pretreatment, pickling treatment, cleaning and drying after pickling and the like, and the pickling is an important step of quartz sand purification.

[0003] For example, in the prior art (Chinese patent with publication number CN117303377A), a quartz sand purification pickling equipment and method are disclosed, which include a barrel body, an installation box is fixedly connected to the inner bottom wall of the barrel body, a plurality of partition plates are fixedly connected between the outer surface of the installation box and the barrel body, a plurality of pickling cavities are formed in the barrel body through the partition plates, and an electric push rod is fixedly connected to the inner bottom wall of the installation box. The quartz sand after completing the entire pickling is taken out, rotated to the second use pickling cavity, and new quartz sand is put in. The first use pickling cavity corresponding acid discharge pipe and the second electromagnetic valve are opened at this time, the pickling liquid flows to the funnel and is discharged from the liquid outlet hole, then the first electromagnetic valve is opened by the controller to make the pickling liquid in the acid storage tank flow into the pickling cavity, and then the pickling is continuously carried out, so that the independent replacement of the pickling liquid in each pickling cavity can be realized, the continuity of the pickling process is ensured, the acid liquid is fully utilized, and the cost of treating waste acid is reduced.

[0004] The current mainstream "after acid removal, transfer to independent water washing tank" process of industrial quartz sand pickling production line needs to transfer the quartz sand after pickling to the water washing equipment through processes such as fishing and conveying. This mode has three significant limitations: first, additional transfer devices such as screw conveyors and sand pumps need to be configured, increasing equipment investment and maintenance costs; second, the pickling and water washing processes need to be implemented in two independent devices in two steps, and the transfer time accounts for 15%-20% of the total processing cycle in the process connection, and manual or automatic control systems are needed to coordinate the operation of the two devices, so the process complexity is high; third, the two devices need to occupy production space independently, and the equipment area of a single production line is increased by more than 40% compared with the integrated solution, which cannot realize the integration of the pickling and water washing processes, and restricts the compactness of the production line. SUMMARY

[0005] Aiming at the problems of the existing quartz sand pickling production line, such as increased transfer cost, complex process, large occupied area and unable to integrate design, caused by the process of transferring the deacidified quartz sand to the independent washing tank, the quartz sand purification pickling equipment is provided, which integrates the quartz sand pickling and washing, and realizes the continuous completion of the two processes without transferring by rapid acid discharge; compared with the traditional transfer washing method, the transfer equipment cost and maintenance cost are saved, the process is simplified, the quartz sand transfer loss is eliminated, the production line occupied area is reduced to adapt to the compact layout, the acid washing to washing cycle is shortened, the foundation is laid for subsequent full process integration, and the production line automation and overall efficiency are improved. The specific technical scheme is as follows:

[0006] A quartz sand purification pickling equipment, comprising a tank body and a negative pressure bin connected to the bottom end of the tank body, further comprising a liquid discharge system for realizing the up-down partition acid discharge in the tank body, the liquid discharge system comprising: a liquid discharge valve, a liquid discharge port, a barrel, a rotary lifting assembly and a negative pressure pumping assembly, the liquid discharge valve is arranged in the lower part of the side wall of the tank body, used for discharging the upper layer liquid in the cavity of the tank body; the liquid discharge port is arranged on the side wall of the negative pressure bin, used for discharging the lower layer liquid in the cavity of the tank body; the barrel is rotatably arranged in the cavity of the tank body, and the side wall and the bottom end of the barrel are provided with uniform through holes smaller than the diameter of the quartz sand; the rotary lifting assembly is arranged on the tank body, used for driving the barrel to rotate and lift relative to the cavity of the tank body; the negative pressure pumping assembly is arranged on the negative pressure bin, used for pumping the lower layer liquid in the cavity of the tank body.

[0007] In the above technical scheme, the rotary lifting assembly comprises: a first shaft body, a cylinder, a spiral groove, a mounting bracket, a fixed pin and an elastic expansion air bag, the first shaft body is vertically arranged above the middle part of the barrel, and the first shaft body penetrates the top end of the tank body upward; the cylinder is fixedly arranged at the top end of the first shaft body; the spiral groove is arranged in a spiral descending manner along the outer wall of the cylinder; the mounting bracket is fixedly installed on the top end of the tank body; the fixed pin is fixedly installed on the side wall of the mounting bracket, and the end portion of the fixed pin is embedded in the inner cavity of the spiral groove; the bottom end of the elastic expansion air bag is fixedly installed on the top end of the tank body, and the top end of the elastic expansion air bag is rotatably connected to the bottom end of the cylinder, and the elastic expansion air bag can be expanded and contracted and can be sealed.

[0008] In the technical scheme, the negative pressure pumping and draining assembly comprises a second shaft body, a lifting plate, a first connecting rod, a connecting frame, a second connecting rod and a third connecting rod, the second shaft body extends into the negative pressure chamber in the vertical direction, the lifting plate is installed at the top end of the second shaft body, and a rubber sealing gasket is arranged on the opposite side of the inner side wall of the negative pressure chamber, one end of the first connecting rod is fixedly installed at the bottom end of the second shaft body, the connecting frame is fixedly installed at the other end of the first connecting rod, the connecting frame is arranged in a hollow rectangular structure, the liquid outlet is arranged in the inner cavity of the connecting frame, and the connecting frame is arranged in the vertical direction, the second connecting rod is fixedly installed at the top end of the side wall of the connecting frame, and the third connecting rod is vertically installed at the bottom end of the second connecting rod.

[0009] In the technical scheme, the negative pressure pumping and draining assembly further comprises a shell, a moving strip, a through hole and a sealing element, the shell is arranged in the vertical direction in the inner cavity of the liquid outlet, and the left and right sides of the shell are respectively communicated with the inner cavity of the liquid outlet, the moving strip is slidably embedded in the top end of the inner cavity of the shell, and the shape and size of the moving strip are matched with the inner cavity of the shell, the moving strip is fixedly connected with the third connecting rod, the through hole is arranged at the top end of the moving strip, and when the moving strip is completely embedded in the inner cavity of the shell in the downward direction, the through hole is correspondingly arranged at the position of the liquid outlet, and the sealing element is arranged at the relative connection position of the shell and the moving strip.

[0010] In the technical scheme, the rotating lifting assembly and the negative pressure pumping and draining assembly are uniformly driven by a driving system, the driving system comprises a first connecting arm, a second connecting arm, a vertical guide rod, a vertical plate, a frame body, a pneumatic cylinder, a push rod, a first connecting block, a driving rod, a second connecting block and a limiting rod, the first connecting arm is connected with the negative pressure pumping and draining assembly, the second connecting arm is connected with the rotating lifting assembly, the vertical guide rod and the vertical plate are arranged in the vertical direction, the frame body is fixedly installed on the side wall of the vertical plate, the pneumatic cylinder is installed at the top end of the frame body, and the output end of the pneumatic cylinder penetrates through the vertical plate, the push rod is fixedly installed at the output end of the pneumatic cylinder, and the push rod is arranged in parallel with the vertical plate, two groups of the first connecting blocks are fixedly installed at the two ends of the push rod, one end of each of the two groups of the driving rods is rotationally connected with one of the two groups of the first connecting blocks, two groups of the second connecting blocks are slidably sleeved on the vertical guide rod, and the other end of each of the two groups of the driving rods is rotationally connected with one of the two groups of the second connecting blocks, and the upper and lower groups of the second connecting blocks are fixedly connected with the second connecting arm and the first connecting arm respectively, and at least two groups of the limiting rods are vertically installed between the vertical guide rod and the vertical plate, and the push rod is slidably sleeved on the limiting rod.

[0011] In the technical scheme, the length of the driving rod located at the lower position is smaller than the length of the driving rod located at the upper position.

[0012] In the technical scheme, the barrel and the first shaft body are connected through a quick mounting mechanism, the quick mounting mechanism comprises a T-shaped strip, a protrusion, a groove, an elastic member, a triangular seat and a socket, the T-shaped strip is fixedly installed on the top end of the barrel along the diameter direction of the barrel, and the cross-sectional shape of the T-shaped strip is T-shaped; the protrusion is fixedly installed on the T-shaped strip; the groove is formed on the T-shaped strip, and the groove and the protrusion are arranged at two ends of the T-shaped strip respectively; one end of the elastic member is fixedly installed in the inner cavity of the groove; the triangular seat is fixedly installed on the top end of the elastic member, and the cross-sectional shape of the triangular seat is triangular; the socket is slidably sleeved on the T-shaped strip, and the socket is provided with a T-shaped slot for sliding insertion of the T-shaped strip.

[0013] When the socket is in the clamping state with the T-shaped strip, the protrusion is arranged in abutment with one side wall of the socket, and the right-angle side of the triangular seat is arranged in abutment with the other side wall of the socket.

[0014] In the technical scheme, the socket is provided with a quick release assembly, the quick release assembly comprises a first mounting seat, an L-shaped rod, a push block, a U-shaped frame, a spring, a second mounting seat, a pull rod and a handle, the first mounting seat is vertically and fixedly installed on the socket; the L-shaped rod is slidably penetrated through the first mounting seat; the push block is installed at the end of the L-shaped rod, the push block is arranged at the side of the triangular seat, and the side of the triangular seat away from the push block is arranged as a vertical side; the U-shaped frame is fixedly connected with the L-shaped rod, and the U-shaped frame is arranged in a U-shaped structure; the spring is sleeved on the L-shaped rod, and the spring is arranged between the first mounting seat and the spring; the second mounting seat is vertically and fixedly installed on the socket, and the second mounting seat is arranged in correspondence with the first mounting seat; the pull rod is slidably penetrated through the second mounting seat, and the pull rod is fixedly connected with the U-shaped frame; the handle is fixedly installed at the end of the pull rod.

[0015] In the technical scheme, the support assembly further comprises a base frame, a stand, a first bracket, a second bracket and a placement table, the base frame is arranged on the ground; at least four groups of the stand are fixedly installed on the base frame in front and back correspondence; the first bracket is fixedly installed on the top end of the tank body, and the first bracket is fixedly connected with the stand; the second bracket is fixedly installed on the connection between the tank body and the outer wall of the negative pressure bin, and the second bracket is fixedly connected with the stand; the placement table is installed on the base frame, and the placement table is arranged in an L-shaped structure.

[0016] In the technical scheme, the door body is arranged on the side wall of the tank body in a rotating mode, the height of the door body is greater than the height of the barrel, and the diameter of the door body is greater than the diameter of the barrel; the tank body is provided with a liquid inlet at the top end; and the tank body and the negative pressure bin are provided with a screen at the communication position.

[0017] Compared with the prior art, the quartz sand purification and pickling equipment has the beneficial effects that:

[0018] I. In view of the problem of increased transfer cost, complex process, large occupied area and non-integrated design caused by the process of transferring the deacidified quartz sand to an independent washing tank in the mainstream of the existing quartz sand pickling production line, the quartz sand pickling and washing are integrated in the application, the acid is quickly discharged, and the acid washing and washing are sequentially and continuously performed in the integrated equipment without transferring the quartz sand; compared with the existing method of transferring the deacidified quartz sand for washing, the purchase and maintenance cost of the transfer device such as the screw conveyor and the sand pump are saved, the complex transfer process is simplified, the loss of the quartz sand in the transfer process is eliminated, at the same time, the integrated equipment reduces the occupied area of a single production line, is more suitable for compact workshop layout, and has higher process connection efficiency, can shorten the total processing period of the quartz sand pickling and washing, lays a foundation for the full-process integration of the subsequent drying and screening processes, and improves the automation level and overall processing efficiency of the production line;

[0019] II. The application can efficiently discharge the acid liquid in the tank body by discharging the acid liquid in the upper and lower zones: for the upper part of the acid liquid in the tank body, the liquid is directly and quickly discharged through the top layer of the liquid discharge valve, and for the acid liquid in the bottom layer of the tank body, a negative pressure environment is formed by the negative pressure suction mode arranged at the bottom end of the equipment to accelerate the separation of the residual acid from the tank body and achieve complete discharge; compared with the conventional method of relying on the self-weight of the acid liquid to naturally discharge outside the equipment, the upper and lower partitioned acid discharge design of the application can improve the acid discharge efficiency by more than 1 times, greatly shorten the overall acid discharge time, and effectively reduce the residence time of the acid liquid in the equipment; on the one hand, the negative pressure suction can more completely remove the residual acid in the gaps of the quartz sand, reduce the neutralization reaction load of the acid liquid and the cleaning water in the subsequent washing link, reduce the cleaning water consumption, avoid excessive corrosion of the quartz sand surface caused by long-term adhesion of the residual acid, and ensure the purity of the quartz sand product; on the other hand, the improvement of the acid discharge efficiency and the shortening of the acid discharge time can further compress the connection interval of the pickling and washing processes, provide support for the continuous and stable operation of the production line, and indirectly improve the overall processing efficiency;

[0020] Thirdly, in the application, the acid washing process of quartz sand is completed in the inner cavity of the barrel, and the barrel has a self-rotation function during the upward movement; when the acid washing is completed and the barrel moves upward to separate from the acid liquid environment in the inner cavity of the tank body, the self-rotation action can be automatically started, and the residual acid liquid in the barrel is quickly discharged outward through the centrifugal force, thereby realizing the deep deacidification of the quartz sand after acid washing in the barrel; compared with the traditional gravity natural acid leaching or external equipment deacidification mode, the deacidification efficiency is greatly improved through the deacidification mode of the barrel rotating upward, the acid liquid attached to the surface and the gap of the quartz sand can be quickly separated by the centrifugal force, the connection time between the acid washing and the water washing processes is significantly shortened; and the deacidification is more thorough, which can greatly reduce the residual acid content of the quartz sand, reduce the pollution of residual acid to the cleaning water in the subsequent water washing process, and reduce the amount of neutralizing agent and the consumption of cleaning water; in addition, no additional deacidification equipment is needed, the production line structure is simplified, and more compact support is provided for the integrated design of acid washing and water washing.

[0021] Fourthly, in the application, the opposite movement of the second connecting arm and the first connecting arm can synchronously trigger two key processes: on the one hand, the barrel is driven to complete the rotating upward movement, and the centrifugal acid discharge of the quartz sand in the barrel is realized through the centrifugal force; on the other hand, the negative pressure suction mechanism at the bottom end of the tank body is started, and the efficient suction and discharge of the bottom acid liquid are realized, so that the synchronous operation of the centrifugal acid discharge at the top end and the negative pressure acid discharge at the bottom end is realized, that is, the double functions of driving the barrel to realize the rotating upward movement and driving the bottom end of the tank body to complete the negative pressure acid discharge are realized through the same driving power source. The same power driving eliminates the need for separately configuring a driving system for the double acid discharge functions, reduces the number and complexity of equipment power components, and simplifies the overall structure of the equipment, further adapting to the compactness requirement of integrated design; the synchronous linkage of the double acid discharge actions avoids the efficiency limitation of single acid discharge mode, greatly improves the acid liquid discharge efficiency, effectively shortens the interval time from the end of acid washing to the start of water washing of the integrated equipment, and reduces the process waiting time; in addition, the same power driving ensures the consistency of the two acid discharge actions, avoids the problems of acid liquid residue or incomplete acid discharge caused by asynchronous actions, further guarantees the efficiency of the subsequent water washing process and the purity of the quartz sand product, and provides reliable support for the continuous and stable operation of the production line.

[0022] Fifth, in the application, when the lifting plate moves downward along the negative pressure chamber cavity to build a negative pressure suction environment, the through hole can be synchronously driven to move downward and gradually approach the liquid outlet. When the lifting plate is lowered to form a negative pressure threshold in the negative pressure chamber that is sufficient to meet the efficient pumping of the acid liquid, the through hole and the inner cavity of the liquid outlet are connected, and then the acid liquid in the inner cavity of the bottom end of the tank is automatically pumped to the open liquid outlet by the negative pressure effect. The linkage design realizes the control logic of "negative pressure reaching the standard automatically opens the acid discharge", without manual intervention to open and close the liquid outlet, avoiding the misjudgment of the acid discharge opportunity when manually supervising, ensuring that the acid discharge action and the negative pressure state are completely matched, and the downward displacement of the lifting plate and the connection action of the through hole form a mechanical chain, the corresponding relationship between the negative pressure threshold and the acid discharge opening is stable and reliable, and the acid liquid residue or incomplete acid discharge caused by manual operation error is avoided, which is more suitable for the automation and unmanned operation of industrial production lines;

[0023] Sixth, in the application, the two groups of driving rods arranged above and below are designed with different lengths, and the inclination degrees of the two groups of driving rods relative to the vertical guide rod also differ. Based on this structural design, when the two groups of driving rods are displaced by the push rod, the second connecting arm and the first connecting arm can be caused to have differential displacement in the vertical direction, and finally the rotation and upward movement of the barrel and the downward negative pressure pumping action of the lifting plate can be realized. Under the action of the same driving force, the length and inclination degree difference of the driving rods ensures that the descending stroke interval of the lifting plate is greater than the ascending stroke interval of the barrel, thereby providing protection for building a sufficient negative pressure environment in the negative pressure chamber to meet the efficient pumping of the acid liquid. The common design of the same driving force greatly reduces the number and occupied space of the driving components, and is more suitable for the compactness requirement of integrated equipment. Moreover, the action stroke is regulated through structural differentiation, which not only ensures that the rotation and upward movement of the barrel can efficiently complete the centrifugal deacidification, but also ensures that a sufficient negative pressure is formed in the negative pressure chamber to achieve complete pumping, so that both double acid discharge functions can achieve targeted effects, avoiding the problem of mutual restriction of action effects caused by single driving.

[0024] Seventh, the core principle of the acid liquid rapid discharge method adopted in the application can be directly reused for subsequent water discharge operations in the washing process. That is, the technical logic of realizing fast acid liquid discharge through double acid discharge and negative pressure pumping in the pickling stage is equally applicable to the fast discharge of cleaning water after washing is completed, without the need for additional design of a special water discharge structure. The same set of fast discharge system takes into account the efficient discharge of acid liquid and cleaning water, avoiding the need to separately configure equipment for water discharge function, further simplifying the structural complexity of integrated equipment, and after pickling, the fast discharge principle can be used to quickly enter the washing stage, and after washing is completed, the same logic can be used to quickly discharge water, reserving sufficient time for the next batch of quartz sand to be pickled and purified, effectively compressing the total processing cycle of a single batch, reducing the waiting time between processes, and truly achieving efficient integrated processing of quartz sand pickling and purification.

[0025] Eightly, in the application, the barrel and the first shaft body are connected by a quick mounting assembly structure: the T-shaped strip is inserted into the corresponding structure along the horizontal direction, thereby completing the connection with the socket and being automatically clamped. This connection mode can ensure that the barrel and the socket do not produce relative displacement during the subsequent centrifugal deacidification process of the barrel, thereby ensuring the stability of the deacidification action. In the unloading process, the U-shaped frame is pulled to drive the push block to separate the triangular seat from the limiting structure of the side wall of the socket, and then the T-shaped strip is pulled out to separate the barrel from the inner cavity of the socket. The deacidification and dehydration are quickly completed, and the barrel is unloaded from the inner cavity of the tank. The plug-in and locking mode does not require complex fixing steps, effectively shortens the assembly operation time of the barrel in the inner cavity of the tank, and can be easily and efficiently unloaded by operating near the door body. The cumbersome process of manually entering the tank to disassemble the barrel is avoided, and the integrated pickling and washing process is further compressed to further compress the processing cycle.

[0026] In summary, the application realizes the overall optimization of the quartz sand pickling and washing process: the integrated design eliminates the transfer cost and space occupation problem of the traditional process, and the up-down partition acid discharge, self-rotation upward centrifugal deacidification improves the acid discharge efficiency and thoroughness, reduces the water washing consumption and guarantees the product purity; with the same power drive and differential structure design, the equipment is simplified and the space is saved, and the double acid discharge actions are accurately coordinated; the automatic control is realized by negative pressure acid discharge linkage, the manual error is avoided, the fast discharge principle is reused, and the quick mounting and quick unloading design further shortens the process interval and operation time, the overall scheme greatly reduces the equipment cost, labor cost and energy consumption, improves the production line automation level and continuous operation capacity, and truly realizes the efficient, compact and integrated treatment of quartz sand pickling and purification, which meets the industrialized production demand. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a tank body of the application;

[0028] Figure 2 FIG. 1 is a structural schematic diagram of a tank body of the application;

[0029] Figure 3 FIG. 1 is a structural schematic diagram of a tank body of the application;

[0030] Figure 4 FIG. 1 is a structural schematic diagram of a tank body of the application;

[0031] Figure 5 FIG. 1 is a structural schematic diagram of a tank body of the application; Figure 4

[0032] Figure 6

[0033] Figure 7 FIG. 1 is a structural schematic diagram of a tank body of the application;

[0034] ​​Figure 8 is a front view of the first shaft body of the present application;

[0035] Figure 9 is an enlarged view of B of Figure 8

[0036] Figure 10 is a structural schematic view of the screen of the present application;

[0037] Figure 11 is a structural schematic view of the lifting plate of the present application;

[0038] Figure 12 is a structural schematic view of the first connecting arm of the present application;

[0039] Figure 13 is a structural schematic view of the spiral groove of the present application;

[0040] Figure 14 is a structural schematic view of the U-shaped frame of the present application;

[0041] Figure 15 is a structural schematic view of the T-shaped strip of the present application;

[0042] Figure 16 is an enlarged view of C of Figure 15

[0043] Figure 17 is a structural schematic view of the triangular seat of the present application;

[0044] Figure 18 is a structural schematic view of the convex block of the present application;

[0045] Figure 19 is a structural schematic view of the pushing block of the present application;

[0046] Figures 1 to 19 ​​In, 1, tank body, 2, door body, 3, negative pressure bin, 4, drain valve, 5, drain port, 6, liquid inlet, 7, barrel, 8, first shaft body, 9, cylinder, 10, spiral groove, 11, mounting frame, 12, fixed pin, 13, elastic expansion air bag, 14, screen, 15, second shaft body, 16, lifting plate, 17, first connecting rod, 18, connecting frame, 19, second connecting rod, 20, third connecting rod, 21, moving strip, 22, through hole, 23, sealing element, 24, shell, 25, first connecting arm, 26, second connecting arm, 27, vertical guide rod, 28, vertical plate, 29, frame body, 30, air cylinder, 31, push rod, 32, first connecting block, 33, drive rod, 34, second connecting block, 35, limiting rod, 36, T-shaped strip, 37, protruding block, 38, recess, 39, elastic element, 40, triangular seat, 41, socket, 42, first mounting seat, 43, L-shaped rod, 44, push block, 45, U-shaped frame, 46, spring, 47, second mounting seat, 48, pull rod, 49, handle, 50, base frame, 51, stand, 52, first bracket, 53, second bracket, 54, placing table. DETAILED DESCRIPTION

[0047] The application will be further described below with reference to specific embodiments and accompanying drawings. Figures 1 to 19 The application will be further described below with reference to specific embodiments and accompanying drawings.

[0048] Reference will be made in detail to embodiments of the application Figures 1 to 4As shown, a quartz sand purification pickling device, including a tank body 1 and a negative pressure bin 3 communicated with the bottom end of the tank body 1, a screen 14 is arranged at the communication part of the tank body 1 and the negative pressure bin 3, the quartz sand can be further isolated through the screen 14, to avoid the part of the quartz sand from being discharged with the acid liquid, and the device further includes a liquid discharge system for realizing the up-down partition acid discharge in the tank body 1, the double-path efficient discharge of the acid liquid in the upper and lower parts of the inner cavity of the tank body 1 is realized through the liquid discharge system, the liquid discharge system includes a liquid discharge valve 4, a liquid discharge port 5, a barrel 7, a rotary lifting assembly and a negative pressure pumping assembly, the liquid discharge valve 4 is arranged in the middle and lower part of the side wall of the tank body 1, and is used for discharging the upper liquid in the inner cavity of the tank body 1, the liquid discharge valve 4 is a commonly used type of liquid discharge valve with opening and closing function in the market, that is, it can be controlled to adjust the opening and closing state, and its structure and function belong to the existing mature technology, the specific form, specification and working principle of the present application are not limited, and will not be described additionally; the liquid discharge port 5 is arranged on the side wall of the negative pressure bin 3, and is used for discharging the lower liquid in the inner cavity of the tank body 1; the tank body 1 is communicated with a liquid inlet 6 at the top end, the acid liquid is injected through the liquid inlet 6 during pickling, and the water is injected through the liquid inlet 6 during washing, that is, the liquid inlet 6 is the liquid inlet for pickling and washing, and its structure and function belong to the existing mature technology, the specific form, specification and working principle of the present application are not limited, and will not be described additionally; the barrel 7 is relatively rotatably arranged in the inner cavity of the tank body 1, and uniform through holes smaller than the diameter of the quartz sand are formed in the side wall and the bottom end of the barrel 7, so that the quartz sand in the inner cavity of the barrel 7 under the subsequent centrifugal action still stays in the inner cavity of the barrel 7, and the acid liquid is discharged outward through the through holes; the rotary lifting assembly is arranged on the tank body 1, and is used for driving the barrel 7 to rotate and lift relative to the inner cavity of the tank body 1, to realize centrifugal deacidification; the negative pressure pumping assembly is arranged on the negative pressure bin 3, and is used for pumping and discharging the lower liquid in the inner cavity of the tank body 1. The side wall of the tank body 1 is rotatably provided with a door body 2 through a pin shaft, the door body 2 is a door body structure provided with a sealing strip, which can form a complete sealed environment for the tank body 1 in the closed state. The structure and function of the door body and the sealing strip belong to the existing mature technology, the specific form, specification and working principle of the present application are not limited, and will not be described additionally; and the height of the door body 2 is greater than the height of the barrel 7, and the diameter of the door body 2 is greater than the diameter of the barrel 7, so as to ensure that the size of the door body 2 is sufficient for the barrel 7 to be put into or taken out of the inner cavity of the tank body 1.

[0049] In the application, the acid washing process of quartz sand is completed in the inner cavity of the barrel 7, and the barrel 7 has a self-rotation function during the upward movement; when the acid washing is completed and the barrel 7 moves upward to separate from the acid liquid environment in the inner cavity of the tank body 1, the self-rotation action can be automatically started, and the residual acid liquid in the barrel 7 is quickly discharged outward under the action of centrifugal force, thereby realizing the deep deacidification of the quartz sand after acid washing in the barrel 7; compared with the traditional gravity natural acid leaching or external equipment deacidification mode, the barrel 7 rotating upward cooperates to bring multiple technical advantages: first, the deacidification efficiency is significantly improved, the centrifugal force can quickly separate the attached acid liquid on the surface and in the gap of the quartz sand, the deacidification time is shortened by 40%-60% compared with the traditional mode, and the time consumption of the connection of the acid washing and water washing processes is greatly reduced; second, the deacidification is more thorough, the residual acid residual amount can be reduced from 5%-8% in the traditional process to less than 1.5%, effectively reducing the pollution of residual acid to the cleaning water in the subsequent water washing link, reducing the neutralizing agent dosage and cleaning water consumption, and the water washing water consumption can be reduced by more than 30%; third, no additional deacidification equipment is needed, which further simplifies the production line structure, provides more compact technical support for the acid washing-water washing integrated design, and helps to improve the overall efficiency of the production line.

[0050] And the application adopts the quartz sand acid washing-water washing integrated design, combines the rapid acid discharge technology, realizes that the quartz sand can be continuously completed in the same equipment without transfer; compared with the traditional transfer water washing mode, the transfer equipment cost and maintenance cost are saved, the process is simplified, the sand loss is eliminated, the production line occupation is also reduced, the processing cycle is shortened, the whole process integration is laid, and the automation and overall efficiency are improved.

[0051] The application adopts up-down partition acid discharge: the upper part of the acid liquid in the tank body 1 is quickly discharged through the top layer of the liquid discharge valve 4, and the bottom layer of the acid liquid is discharged through the bottom negative pressure suction; compared with the traditional self-weight acid discharge, the acid discharge efficiency is improved by more than 1 times, the time is shortened, and the acid liquid retention is reduced. Negative pressure suction can also completely remove residual acid, reduce water washing neutralization load and water consumption, avoid excessive corrosion of quartz sand, shorten the acid washing and water washing connection interval, support continuous operation of the production line, and improve the overall efficiency.

[0052] Mainly refer to Figures 2 to 5 , Figure 8 and Figure 9As shown, the rotating lifting assembly comprises a first shaft body 8, a cylinder 9, a spiral groove 10, a mounting frame 11, a fixed pin 12 and an elastic telescopic air bag 13. The first shaft body 8 is vertically arranged at the middle of the upper part of the barrel 7 and penetrates the top end of the tank body 1 upward. The cylinder 9 is fixedly arranged at the top end of the first shaft body 8. The spiral groove 10 is arranged in a spiral descending manner along the outer wall of the cylinder 9. The mounting frame 11 is fixedly mounted at the top end of the tank body 1. The fixed pin 12 is fixedly mounted on the side wall of the mounting frame 11, and the end of the fixed pin 12 is embedded in the inner cavity of the spiral groove 10. The bottom end of the elastic telescopic air bag 13 is fixedly mounted at the top end of the tank body 1, and the top end of the elastic telescopic air bag 13 is rotatably connected to the bottom end of the cylinder 9. The elastic telescopic air bag 13 can be telescoped and can ensure sealing. The elastic telescopic air bag 13 adopts a general air bag structure on the market, and its core characteristic is that it can realize telescopic deformation under external force and can always maintain sealing performance during deformation. In this application, the bottom end of the elastic telescopic air bag 13 and the cylinder 9 are rotatably connected, so that when the cylinder 9 rotates and moves vertically synchronously, the elastic telescopic air bag 13 can only produce telescopic action without rotation, while the sealing performance of the connection part between the cylinder 9 and the tank body 1 is continuously ensured. The specific structure, material and telescopic parameters of the elastic telescopic air bag 13 are not limited in this application, as long as it meets the above-mentioned use requirements of “telescopic, sealing and telescopic only without rotation with the cylinder 9”. Further description and limitation of the elastic telescopic air bag 13 are not provided here.

[0053] When the cylinder 9 and the spiral groove 10 move upward synchronously, the fixed pin 12 is limited and constrained in the inner cavity of the spiral groove 10, so that the spiral groove 10 and the cylinder 9 rotate synchronously during the upward movement, thereby driving the first shaft body 8 and the barrel 7 to realize the rotating upward movement. During this rotating upward movement, the quartz sand in the barrel 7 is separated from the acid under the action of centrifugal force, and the separated acid is discharged into the inner cavity of the tank body 1 through the through hole on the barrel 7. At the same time, the elastic telescopic air bag 13 is stretched with the upward movement of the cylinder 9, and does not rotate during this process, thereby continuously ensuring the sealing performance of the connection part between the first shaft body 8 and the tank body 1.

[0054] In this application, the acid washing of quartz sand is carried out in the inner cavity of the barrel 7, and the barrel 7 can rotate during the upward movement. After acid washing, the barrel 7 moves upward to separate from the acid in the inner cavity of the tank body 1, and automatically rotates to discharge the residual acid under the action of centrifugal force, thereby realizing deep deacidification. Compared with the traditional gravity acid draining or external deacidification, this rotating upward deacidification has higher efficiency, shorter time consumption, more complete residual acid removal, and can reduce water pollution, reagent and water consumption, and does not require additional deacidification equipment, thereby simplifying the production line and supporting the integration of acid washing and water washing.

[0055] Reference is mainly made to Figure 4 , Figure 7 , Figure 10 and Figure 11As shown, the negative pressure pumping assembly comprises a second shaft body 15, a lifting plate 16, a first connecting rod 17, a connecting frame 18, a second connecting rod 19 and a third connecting rod 20. The second shaft body 15 extends into the inner cavity of the negative pressure bin 3 along the vertical direction. The lifting plate 16 is installed at the top end of the second shaft body 15, and a rubber sealing gasket is arranged at the position opposite to the inner side wall of the negative pressure bin 3. The core function of the sealing gasket is to continuously ensure the sealing state between the lifting plate 16 and the inner side wall of the negative pressure bin 3 when the lifting plate 16 moves up and down along the inner wall of the negative pressure bin 3, thereby providing necessary conditions for stably forming a negative pressure environment in the space above the lifting plate 16. The structure design and function realization of the rubber sealing gasket belong to the existing mature technology category, and the specific form, size specification and sealing working principle of the rubber sealing gasket are not limited, and this part of the content will not be described additionally. One end of the first connecting rod 17 is fixedly installed at the bottom end of the second shaft body 15. The connecting frame 18 is fixedly installed at the other end of the first connecting rod 17. The connecting frame 18 is arranged in a hollow rectangular structure, the drainage port 5 is arranged in the inner cavity of the connecting frame 18, and the connecting frame 18 is arranged along the vertical direction. The second connecting rod 19 is fixedly installed at the top end of the side wall of the connecting frame 18. The third connecting rod 20 is vertically installed at the bottom end of the second connecting rod 19.

[0056] The second shaft body 15, the lifting plate 16, the first connecting rod 17, the linkage frame 18, the second connecting rod 19, the third connecting rod 20 and the moving strip 21 are synchronously lowered relative to the negative pressure bin 3, the lifting plate 16 is lowered along the inner cavity of the negative pressure bin 3 to gradually form negative pressure in the negative pressure bin 3, and the first connecting rod 17 is connected with the linkage frame 18, the second connecting rod 19, the third connecting rod 20 and the moving strip 21 to be lowered until the through hole 22 enters the inner cavity of the shell 24 and communicates with the liquid outlet 5. At this time, the lifting plate 16 reaches the bottom end of the inner cavity of the negative pressure bin 3 and is located below the horizontal line of the liquid outlet 5, the acid liquid at the bottom end of the tank body 1 is driven by the negative pressure in the negative pressure bin 3 to be discharged through the liquid outlet 5, bottom-layer acid liquid negative pressure pumping is realized, the efficiency is higher than that of the traditional self-weight liquid discharge, and the cleaning is more thorough, and there is no residual acid.

[0057] In the application, when the lifting plate 16 is lowered along the inner cavity of the negative pressure bin 3 to construct negative pressure, the through hole 22 is synchronously lowered to be close to the liquid outlet 5, when the negative pressure in the negative pressure bin 3 reaches the acid liquid efficient pumping threshold, the through hole 22 is just communicated with the inner cavity of the liquid outlet 5, and the acid liquid is automatically discharged by the negative pressure. The linkage design realizes that the acid is automatically discharged when the negative pressure reaches the standard, without manual intervention, avoids misjudgment of the acid discharging time, such as low pumping efficiency caused by early opening when the negative pressure does not reach the standard or abnormal equipment pressure caused by delayed opening after the negative pressure is overloaded, and the displacement of the lifting plate 16 and the communication of the through hole 22 are mechanically linked, the corresponding relationship is reliable, there is no residual acid problem caused by manual error, and the application is suitable for production line automation operation and maintenance.

[0058] Reference can be made to mainly Figure 6 , Figure 9 , Figure 12As shown in the figure, the rotating lifting assembly and the negative pressure pumping assembly are uniformly driven by a driving system, and the driving system comprises a first connecting arm 25, a second connecting arm 26, a vertical guide rod 27, a vertical plate 28, a frame body 29, a cylinder 30, a push rod 31, a first connecting block 32, a driving rod 33, a second connecting block 34 and a limiting rod 35. The first connecting arm 25 is connected with the negative pressure pumping assembly. Specifically, the first connecting arm 25 is fixedly connected with the bottom end of the second shaft body 15, and when the first connecting arm 25 goes down, the second shaft body 15 is driven to go down synchronously. The second connecting arm 26 is connected with the rotating lifting assembly. Specifically, the second connecting arm 26 is rotatably connected with the top end of the cylinder 9 through a bearing, and when the second connecting arm 26 goes up, the cylinder 9 is driven to go up synchronously. The vertical guide rod 27 and the vertical plate 28 are arranged in the vertical direction. The frame body 29 is fixedly installed on the side wall of the vertical plate 28. The cylinder 30 is installed on the top end of the frame body 29, and the output end of the cylinder 30 penetrates through the vertical plate 28. The cylinder 30 used in the application is a self-locking cylinder commonly used on the market, the output end of which can stop at any position and be locked, which meets the use requirement of the application and is not described and limited here. The push rod 31 is fixedly installed on the output end of the cylinder 30, and the push rod 31 is arranged in parallel with the vertical plate 28. Two groups of first connecting blocks 32 are respectively fixedly installed on the two ends of the push rod 31. One end of two groups of driving rods 33 is respectively rotatably connected with two groups of first connecting blocks 32 through a pin shaft. Two groups of second connecting blocks 34 are respectively slidably sleeved on the vertical guide rod 27, and the other end of two groups of driving rods 33 is respectively rotatably connected with two groups of second connecting blocks 34 through a pin shaft, and the upper and lower two groups of second connecting blocks 34 are respectively fixedly connected with the second connecting arm 26 and the first connecting arm 25, that is, when the two groups of second connecting blocks 34 respectively move along the outer wall of the vertical guide rod 27, the corresponding second connecting arm 26 and the first connecting arm 25 can be driven to move. At least two groups of limiting rods 35 are vertically installed between the vertical guide rod 27 and the vertical plate 28, and the push rod 31 is slidably sleeved on the limiting rod 35.

[0059] The cylinder 30 is controlled to be opened, the push rod 31 drives two groups of driving rods 33 to drive two second connecting blocks 34 to move away from each other, and then the first connecting arm 25 moves downward and the second connecting arm 26 moves upward. During the displacement of the push rod 31, the push rod 31 moves in parallel relative to the vertical guide rod 27 under the guidance of the limiting rod 35.

[0060] The application moves the second connecting arm 26 away from the first connecting arm 25 to trigger two processes simultaneously: one is to drive the material cylinder 7 to rotate and rise to realize the acid discharge at the top end of the quartz sand by centrifugal force; the other is to start the negative pressure suction at the bottom end of the tank body 1 to efficiently discharge the bottom acid liquid, and the double acid discharge is driven by the same power source. This design eliminates the need for a separate driving system, reduces the power components and structural complexity, and meets the integrated and compact requirements; the synchronous acid discharge breaks through the efficiency limitations of single mode, shortens the interval between pickling and washing, and the actions are consistent, avoiding residual acid problems, ensuring the washing efficiency and the purity of quartz sand, and supporting the stable operation of the production line.

[0061] Referring mainly to Figure 3 As shown, the length of the lower driving rod 33 is less than that of the upper driving rod 33; in the application, the two sets of driving rods 33 are designed to be different in length and inclination relative to the vertical guide rod 27, so that when the push rod 31 drives the displacement, the second connecting arm 26 and the first connecting arm 25 can form different displacements in the vertical direction, thereby realizing the rotation and upward movement of the material cylinder 7 and the downward negative pressure suction of the lifting plate 16. Under the same driving force, the different design of the driving rod 33 ensures that the downward stroke of the lifting plate 16 is greater than the upward stroke of the material cylinder 7, providing sufficient negative pressure for the negative pressure chamber 3; this design reduces the driving components and the occupied space, meets the integrated and compact requirements, and adjusts the stroke through structural differences to ensure the double acid discharge effect and avoid mutual restriction of actions.

[0062] Referring mainly to Figures 13 to 15 , Figure 17As shown, the barrel 7 and the first shaft body 8 are connected through a quick mounting mechanism, which comprises a T-shaped strip 36, a protrusion 37, a groove 38, an elastic element 39, a triangular seat 40 and a socket 41. The T-shaped strip 36 is fixedly installed at the top end of the barrel 7 along the diameter direction of the barrel 7, and the cross-sectional shape of the T-shaped strip 36 is T-shaped. The protrusion 37 is fixedly installed on the T-shaped strip 36. The groove 38 is formed on the T-shaped strip 36, and the groove 38 and the protrusion 37 are respectively arranged at the two ends of the T-shaped strip 36. One end of the elastic element 39 is fixedly installed in the inner cavity of the groove 38. The triangular seat 40 is fixedly installed at the top end of the elastic element 39. The elastic element 39 is a commonly used type of elastic element on the market, which is composed of a telescopic rod and a spring sleeved on the telescopic rod. The telescopic rod is a commonly used telescopic rod on the market, which is composed of two sections of rod bodies sleeved on each other. Under the action of external force, the total length of the telescopic rod can change. The spring is sleeved on the telescopic rod and deforms in the corresponding direction along with the length change of the telescopic rod. The spring can realize the reset of the telescopic rod under no external force by the spring force. The elastic element 39 meets the use requirements of the present application, and the above-mentioned components are not limited in type and are not described in detail. The cross-sectional shape of the triangular seat 40 is triangular. The socket 41 is slidably sleeved on the T-shaped strip 36, and the socket 41 is provided with a T-shaped slot for sliding insertion of the T-shaped strip 36. When the socket 41 is in a clamping state with the T-shaped strip 36, the protrusion 37 is arranged in abutment with one side wall of the socket 41, and the right angle edge of the triangular seat 40 is arranged in abutment with the other side wall of the socket 41.

[0063] The T-shaped strip 36 of the barrel 7 is inserted into the inner cavity of the socket 41. When initially inserted, the inclined end surface of the triangular seat 40 on the T-shaped strip 36 is in contact with the side wall of the socket 41 and is forced to be compressed into the inner cavity of the groove 38. At this time, the elastic element 39 is also in a compressed state. With the continuous insertion of the T-shaped strip 36 into the inner cavity of the socket 41, the top end of the triangular seat 40 slides along the inner wall of the socket 41 until the protrusion 37 abuts against one side wall of the socket 41. The other side of the triangular seat 40 extends out of the inner cavity of the groove 38 under the elastic force of the elastic element 39, and the right angle edge thereof abuts against the other side wall of the socket 41. Finally, the T-shaped strip 36 is lengthwise limited in the inner cavity of the socket 41, avoiding the relative disengagement of the T-shaped strip 36 from the socket 41 during the subsequent rotation of the barrel 7.

[0064] In the present application, the barrel 7 and the first shaft body 8 are connected through a quick mounting structure. The T-shaped strip 36 can be horizontally inserted into the socket 41 to be connected and automatically clamped, ensuring that there is no relative displacement during the rotation and centrifugal deacidification of the barrel 7, and ensuring the stability of deacidification. When discharging, the U-shaped frame 45 can be pulled to drive the triangular seat 40 to disengage from the socket 41, and the T-shaped strip 36 can be pulled out to remove the barrel 7 and complete the discharging. This design does not require complex fixing steps, shortens the assembly time, and is convenient for discharging without manual operation into the tank body 1, further compressing the processing cycle with the integrated process.

[0065] Mainly refer to Figures 15 to 19As shown, the socket 41 is provided with a quick release assembly, which comprises a first mounting seat 42, an L-shaped rod 43, a push block 44, a U-shaped frame 45, a spring 46, a second mounting seat 47, a pull rod 48 and a handle 49. The first mounting seat 42 is vertically and fixedly installed on the socket 41. The L-shaped rod 43 is slidably penetrated through the first mounting seat 42. The push block 44 is installed at the end of the L-shaped rod 43 and is arranged at the side of the triangular seat 40, and the side of the triangular seat 40 away from the push block 44 is provided as a vertical edge. The U-shaped frame 45 is fixedly connected with the L-shaped rod 43, and is arranged in a U-shaped structure. The spring 46 is sleeved on the L-shaped rod 43 and is arranged between the first mounting seat 42 and the spring 46. The second mounting seat 47 is vertically and fixedly installed on the socket 41 and is correspondingly arranged with the first mounting seat 42. The pull rod 48 is slidably penetrated through the second mounting seat 47 and is fixedly connected with the U-shaped frame 45. The handle 49 is fixedly installed at the end of the pull rod 48.

[0066] When discharging the quartz sand in the barrel 7 after pickling and water washing, only the handle 49 is pulled to drive the synchronous displacement of the pull rod 48, the U-shaped frame 45, the L-shaped rod 43 and the push block 44, so that the inclined end surface of the triangular seat 40 is forced to displace downward, that is, the elastic member 39 is forced to compress. In this state, the triangular seat 40 is embedded into the inner cavity of the groove 38, and no longer limits the relative position of the socket 41 and the T-shaped strip 36. The T-shaped strip 36 can be pulled out transversely to realize the separation of the T-shaped strip 36 in the inner cavity of the socket 41, that is, the barrel 7 is transversely separated from the inner cavity of the door body 2.

[0067] Referring mainly to Figure 1 and Figure 2 As shown, the device further comprises a supporting assembly, which comprises a base frame 50, a stand 51, a first bracket 52, a second bracket 53 and a placing table 54. The base frame 50 is arranged on the ground. At least four groups of stands 51 are fixedly installed on the base frame 50 in front and back correspondence. The first bracket 52 is fixedly installed at the top end of the tank body 1 and is fixedly connected with the stand 51. The second bracket 53 is fixedly installed at the connection between the tank body 1 and the outer wall of the negative pressure bin 3 and is fixedly connected with the stand 51. Through the cooperation of the stand 51, the first bracket 52 and the second bracket 53, the tank body 1 and the whole device are stably supported on the ground, and the whole device is connected on the ground by means of the anchor bolts at the four corners of the base frame 50. The placing table 54 is installed on the base frame 50 and is arranged in an L-shaped structure. The L-shaped placing table 54 can place a container for receiving the acid.

[0068] In addition, the acid liquid quick discharge principle (including double acid discharge and negative pressure suction) of the present application can be directly reused for water washing process drainage without additional design of special drainage structure; the same quick discharge system considers acid liquid and cleaning water discharge, simplifies the equipment structure, and can compress the process interval of pickling, water washing and drainage, reduce the single batch processing cycle, and realize efficient integrated processing of quartz sand pickling and purification.

[0069] In addition, in order to realize the sufficient pickling and water washing process of the quartz sand in the inner cavity of the barrel 7, a general stirring mechanism in the market can be arranged in the inner cavity of the barrel 7. The driving power of the stirring mechanism can be arranged as an external electric control driving. Therefore, a separate driving motor and other equipment do not need to be arranged in the barrel 7. This is a general technology in the field of quartz sand pickling. The required stirring mechanism in the present scheme can be used. This place will not be described and limited. In addition, the quartz sand in the barrel 7 can be rotated and lifted during the rotation and lifting process. The quartz sand in the barrel 7 can be rotated relative to the acid liquid. The relative full contact between the quartz sand and the acid liquid is realized. The acid liquid does not reach the lower one-third to one-half of the barrel 7. This does not affect the subsequent upward rotation and lifting of the barrel 7 to centrifugally discharge the acid. Only the vertical stroke of the spiral groove 10 needs to meet the stroke requirement of the two stages of the rotation and contact of the acid liquid and the rotation and lifting for centrifugal acid discharge of the barrel 7. The stroke can be set according to the actual requirement. This place will not be described and limited.

[0070] The working principle of the quartz sand purification pickling equipment in the embodiment is as follows:

[0071] The door body 2 is opened. The barrel 7 containing the quartz sand to be processed is assembled at the bottom end of the first shaft body 8: the T-shaped strip 36 on the barrel 7 is inserted into the inner cavity of the socket 41; during the initial insertion process, the inclined end surface of the triangular seat 40 on the T-shaped strip 36 contacts the side wall of the socket 41 and is forced to be compressed into the inner cavity of the groove 38. The elastic member 39 in this state is forced to be in a compressed state; with the insertion of the T-shaped strip 36 into the inner cavity of the socket 41, the top end of the triangular seat 40 slides along the inner wall of the socket 41; until the protrusion 37 is attached to one side of the side wall of the socket 41, the other side of the triangular seat 40 extends out of the inner cavity of the groove 38 under the action of the elastic force of the elastic member 39, and the straight side of the triangular seat 40 is attached to the other side of the side wall of the socket 41; in this state, the T-shaped strip 36 is limited in the length direction in the inner cavity of the socket 41, and will not cause the relative disengagement of the T-shaped strip 36 and the socket 41 in the subsequent rotation process of the barrel 7.

[0072] The door body 2 is closed and forms a sealed relationship with the tank body 1. After the acid liquid for pickling the quartz sand is injected into the inner cavity of the tank body 1 through the liquid inlet 6, the liquid inlet 6 is closed to ensure that the whole inner cavity of the tank body 1 is in a sealed state. The acid liquid in the inner cavity of the tank body 1 fully contacts and reacts with the quartz sand in the barrel 7, so as to realize the pickling and purification processing of the quartz sand.

[0073] After acid washing, first of all, the upper layer of acid liquid in the inner cavity of the tank body 1 is discharged by opening the drain valve 4, at the same time, the barrel 7 rotates and lifts to centrifugally remove the acid, and the lifting plate 16 is lowered to the bottom of the inner cavity of the tank body 1 to perform negative pressure pumping: Specifically, the cylinder 30 is controlled to open, prompting the push rod 31 to drive the two groups of drive rods 33 to drive the two second connecting blocks 34 to move in opposite directions, thereby driving the first connecting arm 25 to move downward and the second connecting arm 26 to move upward;

[0074] The upward movement of the second connecting arm 26 prompts the cylinder 9 and the spiral groove 10 to move upward synchronously, and due to the limiting action of the fixed pin 12 in the inner cavity of the spiral groove 10, the spiral groove 10 and the cylinder 9 are forced to rotate during the upward movement, thereby driving the first shaft body 8 and the barrel 7 to rotate and rise synchronously, and during the upward movement, the quartz sand in the barrel 7 is centrifugally removed from the acid, and the acid liquid is discharged through the through hole in the barrel 7 to the inner cavity of the tank body 1; and in this process, the elastic stretchable air bag 13 is forced to stretch as the cylinder 9 rises, but does not rotate, and still ensures the sealing of the relative connection between the first shaft body 8 and the tank body 1;

[0075] The downward movement of the first connecting arm 25 drives the second shaft body 15, the lifting plate 16 and the first connecting rod 17 to move downward synchronously relative to the negative pressure chamber 3, wherein during the downward movement of the lifting plate 16 along the inner cavity of the negative pressure chamber 3, a negative pressure environment is gradually formed in the negative pressure chamber 3; at the same time, the downward movement of the first connecting rod 17 can drive the linkage frame 18, the second connecting rod 19, the third connecting rod 20 and the moving strip 21 to move downward together until the through hole 22 moves downward to the inner cavity of the shell 24 and forms a communication passage with the drain port 5; when the above actions are completed, the lifting plate 16 has just moved downward to the bottom position of the inner cavity of the negative pressure chamber 3, and at this time, the position of the lifting plate 16 is below the horizontal line of the drain port 5; under the action of the negative pressure environment formed in the negative pressure chamber 3, the acid liquid in the bottom inner cavity of the tank body 1 is driven to be discharged outward through the automatically opened drain port 5, and finally the negative pressure pumping of the bottom layer of acid liquid is realized; compared with the traditional discharge method relying on the weight of the acid liquid, this negative pressure pumping method not only has higher efficiency, but also can more thoroughly remove the acid liquid to avoid residue;

[0076] Moreover, the up-down partitioned acid discharge method is more efficient, and after the acid is discharged, the water washing liquid is injected through the liquid inlet 6, and the quartz sand is washed with water and the water washing liquid is discharged in an up-down partitioned manner, thereby realizing efficient and consecutive operation of the acid washing and water washing of the quartz sand;

[0077] The application realizes comprehensive optimization of the quartz sand acid washing and water washing process: the integrated design eliminates the transfer cost and space occupation problem of the traditional process, the upper and lower partition acid discharge is combined, the self-rotation upward centrifugal deacidification is used to improve the acid discharge efficiency and thoroughness, the water washing consumption is reduced and the product purity is guaranteed; with the help of the same power driving and differential structure design, the equipment is simplified, the space is saved, and the double acid discharge actions are ensured to be accurately coordinated; the automatic control is realized through the negative pressure acid discharge linkage, the manual error is avoided, the fast discharge principle is reused, and the fast installation and fast removal design further shortens the process interval and the operation time, the overall scheme greatly reduces the equipment cost, the labor cost and the energy consumption, improves the production line automation level and the continuous operation ability, and truly achieves efficient, compact and integrated treatment of the quartz sand acid washing and purification, which adapts to the industrialized and large-scale production demand.

[0078] The above only describes the preferred embodiments of the application and is not intended to limit the application. The application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A quartz sand purification pickling device, comprising a tank body (1) and a negative pressure bin (3) communicated with the bottom end of the tank body (1), characterized in that: Further comprising a liquid discharge system for partitioning and discharging the liquid in the tank (1) into upper and lower parts, the liquid discharge system comprising: a liquid discharge valve (4) arranged in the lower part of the side wall of the tank (1) for discharging the upper layer liquid in the inner cavity of the tank (1); a liquid discharge port (5) arranged in the side wall of the negative pressure chamber (3) for discharging the lower layer liquid in the inner cavity of the tank (1); a barrel (7) rotatably arranged in the inner cavity of the tank (1), and the side wall and bottom end of the barrel (7) are provided with uniform through holes smaller than the diameter of the quartz sand; a rotating lifting assembly arranged on the tank (1) for driving the barrel (7) to rotate and lift relative to the inner cavity of the tank (1); a negative pressure pumping assembly arranged on the negative pressure chamber (3) for pumping the lower layer liquid in the inner cavity of the tank (1) under negative pressure; the negative pressure pumping assembly comprising: a second shaft body (15) extending into the inner cavity of the negative pressure chamber (3) in the vertical direction; a lifting plate (16) mounted on the top end of the second shaft body (15), and a rubber sealing gasket is arranged on the opposite side of the lifting plate (16) and the inner side wall of the negative pressure chamber (3); a first connecting rod (17) fixedly mounted on one end of the bottom end of the second shaft body (15); a connecting frame (18) fixedly mounted on the other end of the first connecting rod (17), the connecting frame (18) is arranged in a hollow rectangular structure, the liquid discharge port (5) is arranged in the inner cavity of the connecting frame (18), and the connecting frame (18) is arranged in the vertical direction; a second connecting rod (19) fixedly mounted on the top end of the side wall of the connecting frame (18); a third connecting rod (20) perpendicularly mounted on the bottom end of the second connecting rod (19); the negative pressure pumping assembly further comprising: a housing (24) arranged in the inner cavity of the liquid discharge port (5) in the vertical direction, and the left and right sides of the housing (24) are respectively communicated with the inner cavity of the liquid discharge port (5); a moving strip (21) slidably embedded in the top end of the inner cavity of the housing (24), and the shape and size of the moving strip (21) are matched with the inner cavity of the housing (24), and the moving strip (21) is fixedly connected with the third connecting rod (20); a through hole (22) arranged on the top end of the moving strip (21), and when the moving strip (21) is completely embedded in the inner cavity of the housing (24) downward, the through hole (22) corresponds to the position of the liquid discharge port (5); a sealing element (23) arranged at the opposite connection between the housing (24) and the moving strip (21).

2. The quartz sand purification and acid washing equipment according to claim 1, wherein: the rotating lifting assembly comprising: A first shaft body (8) is vertically arranged at the middle of the top of the barrel (7), and the first shaft body (8) penetrates the top of the tank body (1) upward; A cylinder (9) is fixedly arranged at the top of the first shaft body (8); A spiral groove (10) is arranged in a spiral descending manner along the outer wall of the cylinder (9); A mounting frame (11) is fixedly mounted at the top of the tank body (1); A fixed pin (12) is fixedly mounted on the side wall of the mounting frame (11), and the end of the fixed pin (12) is embedded in the inner cavity of the spiral groove (10); An elastic telescopic air bag (13) is fixedly mounted at the top of the tank body (1), and the top of the elastic telescopic air bag (13) is rotatably connected to the bottom of the cylinder (9), and the elastic telescopic air bag (13) can be telescopic and ensure sealing.

3. The quartz sand purification acid washing equipment according to claim 1, characterized in that: the rotating lifting assembly and the negative pressure exhaust assembly are uniformly driven by a driving system, and the driving system comprises: a first connecting arm (25) connected with the negative pressure exhaust assembly; a second connecting arm (26) connected with the rotating lifting assembly; a vertical guide rod (27) and a vertical plate (28) arranged in a vertical direction; a frame body (29) fixedly mounted on the side wall of the vertical plate (28); a cylinder (30) mounted on the top of the frame body (29), and the output end of the cylinder (30) penetrates the vertical plate (28); a push rod (31) fixedly mounted on the output end of the cylinder (30), and the push rod (31) is arranged in parallel with the vertical plate (28); a first connecting block (32) fixedly mounted on both ends of the push rod (31); a driving rod (33) rotatably connected with the first connecting block (32) at one end; a second connecting block (34) slidably sleeved on the vertical guide rod (27), and the other end of the driving rod (33) is rotatably connected with the second connecting block (34), and the upper and lower second connecting blocks (34) are fixedly connected with the second connecting arm (26) and the first connecting arm (25), respectively; at least two limiting rods (35) vertically arranged between the vertical guide rod (27) and the vertical plate (28), and the push rod (31) is slidably sleeved on the limiting rod (35).

4. The quartz sand purification acid washing equipment according to claim 3, characterized in that: the length of the driving rod (33) located below is less than the length of the driving rod (33) located above.

5. The quartz sand purification pickling equipment according to claim 2, characterized in that: the barrel (7) and the first shaft body (8) are connected through a quick mounting mechanism, the quick mounting mechanism comprises: a T-shaped strip (36) is fixedly installed at the top end of the barrel (7) in the diameter direction of the barrel (7), and the T-shaped strip (36) has a T-shaped cross section; a protruding block (37) is fixedly installed on the T-shaped strip (36); a groove (38) is formed in the T-shaped strip (36), and the groove (38) and the protruding block (37) are respectively arranged at the two ends of the T-shaped strip (36); a resilient member (39) is fixedly installed at one end in the inner cavity of the groove (38); a triangular seat (40) is fixedly installed at the top end of the resilient member (39), and the triangular seat (40) has a triangular cross section; a socket (41) is slidably sleeved on the T-shaped strip (36), and the socket (41) is provided with a T-shaped slot for sliding insertion of the T-shaped strip (36); when the socket (41) and the T-shaped strip (36) are in a clamping state, the protruding block (37) is arranged in abutment with one side wall of the socket (41), and the right angle side of the triangular seat (40) is arranged in abutment with the other side wall of the socket (41).

6. The quartz sand purification pickling equipment according to claim 5, characterized in that: the socket (41) is provided with a quick release assembly, and the quick release assembly comprises: a first mounting seat (42) is vertically and fixedly installed on the socket (41); an L-shaped rod (43) is slidably penetrated through the first mounting seat (42); a push block (44) is installed at the end of the L-shaped rod (43), the push block (44) is arranged beside the triangular seat (40), and the side of the triangular seat (40) away from the push block (44) is arranged as a vertical side; a U-shaped frame (45) is fixedly connected with the L-shaped rod (43), and the U-shaped frame (45) is arranged in a U-shaped structure; a spring (46) is sleeved on the L-shaped rod (43), and the spring (46) is arranged between the first mounting seat (42) and the spring (46); a second mounting seat (47) is vertically and fixedly installed on the socket (41), and the second mounting seat (47) is arranged in correspondence with the first mounting seat (42); a pull rod (48) is slidably penetrated through the second mounting seat (47), and the pull rod (48) is fixedly connected with the U-shaped frame (45); a pull handle (49) is fixedly installed at the end of the pull rod (48).

7. The quartz sand purification pickling equipment according to claim 1, characterized in that: it further comprises a supporting assembly, and the supporting assembly comprises: A chassis (50) is arranged on the ground; At least four groups of vertical frames (51) are fixedly installed on the chassis (50) in front and back correspondence; A first bracket (52) is fixedly installed on the top end of the tank body (1), and the first bracket (52) is fixedly connected with the vertical frame (51); A second bracket (53) is fixedly installed on the outer wall connecting portion of the tank body (1) and the negative pressure bin (3), and the second bracket (53) is fixedly connected with the vertical frame (51); A placing table (54) is installed on the chassis (50), and the placing table (54) is arranged in an L shape.

8. The quartz sand purification pickling equipment according to claim 1, characterized in that: The tank body (1) is rotatably provided with a door body (2) on the side wall, and the height of the door body (2) is greater than the height of the material cylinder (7), and the diameter of the door body (2) is greater than the diameter of the material cylinder (7); The tank body (1) is provided with a liquid inlet (6) at the top end; The tank body (1) and the negative pressure bin (3) are provided with a separation net (14) at the communicating portion.

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