A continuous extraction device for composite hydrophilic modified quartz sand

Abstract

The utility model discloses a kind of composite hydrophilic modified quartz sand continuous extraction device, it is related to quartz sand extraction technical field.The utility model includes, separation structure, including centrifugal cylinder, ring seat one and ring seat two of sleeving in centrifugal cylinder outside, rotating sleeve ring of sleeving in centrifugal cylinder outer wall and rotatingly installed in ring seat one and ring seat two outer wall, buffer cavity located in centrifugal cylinder inside, through-hole being equidistantly distributed in centrifugal cylinder outer wall, buffer plate located in buffer cavity inside, gear ring located in the upper end of sleeve ring, motor located in centrifugal cylinder side, gear located in the upper end of motor;Shunt structure, including sleeving in centrifugal cylinder outside vertical cylinder.The utility model is separated by being set to separation structure, to solve the traditional mode separation, each batch separation needs to experience the process of shutdown, opening, loading, closing, starting, separation, shutdown, opening, taking material, leading to the modification reaction, washing process of before and after being forced to interrupt, production rhythm is disjointed, and the problem that overall productivity is restricted.

Description

Technical Field

[0001] This utility model relates to the field of quartz sand extraction technology, and in particular to a composite hydrophilic modified quartz sand continuous extraction device. Background Technology

[0002] Composite hydrophilic modified quartz sand is a functional material that uses physical and chemical composite methods to modify the surface of high-purity quartz sand, introducing a large number of hydrophilic groups such as hydroxyl and carboxyl groups onto its surface, while optimizing the surface microstructure, such as increasing roughness, and significantly improving hydrophilicity and adsorption performance. The continuous extraction device is an integrated equipment used to continuously and automatically complete the hydrophilic modification and subsequent purification of quartz sand. It mainly consists of a raw material pretreatment unit, a modification reaction unit, a separation and washing unit, a drying unit, and a control system, and is suitable for large-scale production.

[0003] The main process steps include:

[0004] Raw material pretreatment: Quartz sand is screened and crushed, and then fed into the reaction vessel by a screw conveyor;

[0005] Composite modification: First, plasma (300-500W power, 10-15min) is introduced to etch the surface, then 1-3% silane coupling agent aqueous solution is pumped in (80℃, stirring for 30min) to achieve physical and chemical composite modification;

[0006] Separation and washing: The modified quartz sand is centrifuged and filtered to separate the waste liquid, and then enters a multi-stage washing tank to be washed with deionized water until neutral (pH=6-7);

[0007] Drying finished product: The washed quartz sand enters the belt dryer, is dried and then packaged. The entire process is continuous, with an hourly capacity of 50-100 kg.

[0008] The separation process involves separating waste liquid from quartz sand. Traditional methods require each batch to undergo a cycle of shutdown, opening the lid, loading, closing the lid, starting up, separating, shutdown, opening the lid, and unloading. This forces interruptions to the preceding and following modification and washing processes, severely disrupting the automated production rhythm of the continuous extraction device and limiting overall capacity. Therefore, those skilled in the art have provided a composite hydrophilic modified quartz sand continuous extraction device to solve the problems mentioned in the background. Utility Model Content

[0009] 1. Technical Solution

[0010] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0011] This utility model relates to a composite hydrophilic modified quartz sand continuous extraction device, comprising,

[0012] The separation structure includes a centrifuge cylinder, a first ring seat and a second ring seat fitted to the outer sides of the upper and lower ends of the centrifuge cylinder, two sets of rotating collars fitted to the outer wall of the centrifuge cylinder and rotatably mounted on the outer walls of the first and second ring seats, a buffer chamber located inside the centrifuge cylinder and distributed longitudinally at equal intervals, through holes opened on the outer wall of the centrifuge cylinder and distributed at equal intervals, a buffer plate located inside the buffer chamber with a conical main cross section and a gap between its outer side and the inner wall of the centrifuge cylinder, a gear ring located at the upper end of the collars, a motor located on one side of the centrifuge cylinder, and a gear located at the upper end of the motor that meshes with the gear ring.

[0013] as well as;

[0014] The diversion structure includes a vertical cylinder fitted onto the outside of the centrifuge tube.

[0015] Furthermore, the centrifuge cylinder is provided with a funnel-shaped funnel at its upper end, the centrifuge cylinder is provided with a flow guide funnel, the buffer plate is provided with a central rod at its center, and the outer wall of the upper end of the central rod is provided with support rods arranged in a ring array and connected to the inner wall of the buffer cavity.

[0016] Specifically, the funnel has a large opening at the top to facilitate the receiving of the mixture during the continuous feeding process of the conveying equipment, and the central rod is fixed inside the buffer chamber by the support rod to fix the buffer plate.

[0017] Furthermore, both the upper and lower ends of the collar are provided with annular grooves, and the inner walls of the upper and lower sides of the first and second ring seats are rotatably mounted with balls that are rolled on the inner walls of the grooves. Fixed rods arranged in annular array are provided between the first and second ring seats.

[0018] Specifically, the balls roll inside the groove, which increases friction, resistance, and stability when the collar rotates inside the first and second collar seats. The fixing rod fixes the first and second collar seats together.

[0019] Furthermore, the centrifuge tube is provided with longitudinally equidistant diffusion cavities that are connected to the upper end of the buffer cavity and whose inner diameter gradually increases from top to bottom; the centrifuge tube is also provided with longitudinally equidistant guide cavities that are connected to the upper end of the diffusion cavity and the upper end of the buffer cavity and whose inner diameter gradually decreases from top to bottom.

[0020] Specifically, the mixture of quartz sand and waste liquid is sequentially spread and transported through the diffusion chamber to the buffer chamber, flows through the buffer chamber to the guide chamber, and then enters the buffer chamber again through the guide chamber, achieving multiple cycles.

[0021] Furthermore, the outer wall of the vertical cylinder is fitted with a support frame connected to the second ring seat, and the upper end of the support frame is provided with a ring-shaped receiving groove that fits onto the outer side of the lower end of the vertical cylinder.

[0022] Specifically, the support frame supports the vertical cylinder, and the waste liquid diverted by the vertical cylinder is collected through the receiving trough.

[0023] Furthermore, a drain pipe is provided at one end of the receiving tank, and a flow guide hood that is annular, has a conical main cross-section, and has its sides located inside the flow guide groove and below the vertical cylinder is fitted onto the outer wall of the lower end of the centrifuge cylinder.

[0024] Specifically, the waste liquid collected in the receiving tank is discharged through the drain pipe, and the flowing waste liquid is limited by the diversion hood to prevent it from entering the diversion hopper.

[0025] 2. Beneficial effects

[0026] Compared with existing technologies, the advantages of this utility model are:

[0027] In this invention, the centrifuge tube adopts a vertical longitudinal layout and is connected to the discharge pipe of the modified reaction unit through a sealed screw conveyor to achieve continuous input of the mixture of quartz sand and waste liquid. The longitudinally rotating centrifuge tube centrifuges the continuously input quartz sand. The centrifuge tube is equipped with an annular buffer plate with a conical main cross-section to reduce the falling speed of the quartz sand. The quartz sand that is temporarily trapped flows in the buffer chamber by centrifugal force and gravity. While separating the waste liquid, it reduces the impact force of the direct fall of the quartz sand. The edge of each buffer plate is kept at a gap with the cylinder wall to ensure the downward flow of the quartz sand. The separation of quartz sand and waste liquid is continuously input from the upper opening of the centrifuge tube and continuously discharged from the lower opening.

[0028] Meanwhile, the waste liquid is separated during the multiple buffering process as it falls inside the centrifuge tube, completely eliminating downtime during intermittent operation. It forms a seamless automated production line with the modification reaction unit, washing unit, and drying unit, thereby increasing overall production capacity.

[0029] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a three-dimensional sectional view of the vertical cylindrical structure of this utility model.

[0033] Figure 3 This is a front-view three-dimensional structural diagram of the centrifuge cylinder of this utility model;

[0034] Figure 4 This is a three-dimensional cross-sectional view of the flow guide cover of this utility model;

[0035] Figure 5 This is a partial main sectional view of the three-dimensional structure of the centrifuge tube of this utility model.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 100. Separation structure; 101. Support frame; 102. Motor; 103. Gear; 104. Ring seat one; 105. Ring seat two; 106. Fixing rod; 107. Guide hopper; 108. Gear ring; 109. Funnel; 110. Centrifuge cylinder; 111. Diffusion chamber; 112. Guide chamber; 113. Buffer chamber; 114. Collar; 115. Ball bearing; 116. Support rod; 117. Buffer plate; 118. Through hole; 119. Groove; 120. Center rod;

[0038] 200. Diversion structure; 201. Vertical cylinder; 202. Receiving tank; 203. Drain pipe; 204. Drainage cover. Detailed Implementation

[0039] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] Please see Figure 1-5 As shown, this embodiment is a continuous extraction device for composite hydrophilic modified quartz sand, comprising:

[0045] The separation structure 100 includes a centrifuge cylinder 110, a first ring seat 104 and a second ring seat 105 sleeved on the outer sides of the upper and lower ends of the centrifuge cylinder 110, two sets of rotating collars 114 sleeved on the outer wall of the centrifuge cylinder 110 and rotatably mounted on the outer walls of the first ring seat 104 and the second ring seat 105, a buffer cavity 113 located inside the centrifuge cylinder 110 and longitudinally equidistantly distributed, a through hole 118 opened on the outer wall of the centrifuge cylinder 110 and equidistantly distributed, a buffer plate 117 located inside the buffer cavity 113 with a conical main cross section and a gap between its outer side and the inner wall of the centrifuge cylinder 110, a gear ring 108 located at the upper end of the collar 114, a motor 102 located on one side of the centrifuge cylinder 110, and a gear 103 located at the upper end of the motor 102 and meshing with the gear ring 108.

[0046] The centrifuge cylinder 110 has a funnel 109 shaped like a funnel 109 at its upper end, a guide bucket 107 at its upper end, a central rod 120 at the center of the buffer plate 117, and a support rod 116 arranged in a ring array on the outer wall of the upper end of the central rod 120 and connected to the inner wall of the buffer cavity 113.

[0047] Both ends of the collar 114 are provided with annular grooves 119. The inner walls of the upper and lower sides of the first ring seat 104 and the second ring seat 105 are rotatably mounted with balls 115 that are rolled on the inner walls of the grooves 119. Fixed rods 106 arranged in annular array are provided between the first ring seat 104 and the second ring seat 105.

[0048] The centrifuge cylinder 110 has longitudinally equidistant diffusion chambers 111 connected to the upper end of the buffer chamber 113, with the inner diameter gradually increasing from top to bottom. The centrifuge cylinder 110 also has longitudinally equidistant guide chambers 112 connected to the upper end of the diffusion chamber 111 and the upper end of the buffer chamber 113, with the inner diameter gradually decreasing from top to bottom.

[0049] as well as;

[0050] The diversion structure 200 includes a vertical cylinder 201 sleeved on the outside of the centrifuge cylinder 110;

[0051] The outer wall of the vertical cylinder 201 is fitted with a support frame 101 that is connected to the ring seat 105. The upper end of the support frame 101 is provided with a ring-shaped receiving groove 202 that is fitted onto the outer side of the lower end of the vertical cylinder 201.

[0052] A drain pipe 203 is provided at one end of the receiving tank 202, and a flow guide hood 204, which is annular, has a conical main cross-section, and whose sides are located inside the flow guide channel and below the vertical cylinder 201, is sleeved on the lower outer wall of the centrifuge cylinder 110.

[0053] The separation structure 100 and the diversion structure 200 are used;

[0054] The centrifuge cylinder 110 adopts a vertical longitudinal layout. The motor 102 drives the gear 103 to mesh with the gear ring 108 at a transmission ratio of 1:5, which drives the centrifuge cylinder 110 to rotate at high speed and generate radial centrifugal force. The main cross section of the buffer plate 117 is conical with a cone angle of 120°. The central rod 120 is fixed to the inner wall of the buffer chamber 113 through the support rod 116, so that the buffer plate 117 and the inner wall of the centrifuge cylinder 110 form a 10-15mm annular gap. The funnel 109 has an angle of 60°. After the mixture enters through the funnel 109, it first passes through the diffusion chamber 111, where the inner diameter increases by 1.5 times from top to bottom to spread and thin it. Then it enters the buffer chamber 113 and is received by the buffer plate 117. The conical surface guides and reduces the falling speed, extending the centrifugal separation time. The waste liquid is thrown out through the through hole 118 under the action of centrifugal force, while the quartz sand enters the guide chamber 112 through the gap, where the inner diameter decreases from top to bottom. After being gathered, it flows into the next-stage buffer chamber 113, realizing multiple cycle separation.

[0055] The multi-stage buffer design improves the waste liquid separation rate and reduces the collision force between quartz sand particles, preventing the surface hydrophilic groups from falling off due to impact. The gradual inner diameter design of the diffusion chamber 111 and the guide chamber 112 can prevent the mixture from accumulating and clogging in the cylinder, ensuring a stable and uninterrupted continuous feed rate. The centrifuge cylinder 110 is made of 316L stainless steel, which is resistant to corrosion from modified weak acid waste liquid. The buffer plate 117 and the center rod 120 are made of polytetrafluoroethylene, which has low surface friction, reduces quartz sand retention, and is heat resistant up to 200℃, making it suitable for the residual heat environment of the modified material. The support rod 116 is made of Hastelloy C-276, which ensures structural rigidity under high-speed rotation.

[0056] The grooves 119 at the upper and lower ends of the collar 114 are 5mm deep, forming rolling support with the 8mm diameter balls 115 on the inner wall of the first ring seat 104 and the second ring seat 105. This reduces the coefficient of friction when the centrifuge 110 rotates. The fixed rod 106 connects the first ring seat 104 and the second ring seat 105, and the overall radial runout is controlled within 0.1mm. This structure not only bears the weight of the centrifuge 110 but also ensures the stability of high-speed rotation, avoiding fluctuations in separation efficiency caused by vibration. Compared with traditional bearing support, the maintenance cycle of the ball 115 and groove 119 structure is extended, and wear can be further reduced by adding high-temperature grease. The collar 114 and the ring seat are made of 42CrMo alloy steel, and the balls 115 are made of GCr15 bearing steel, ensuring the reliability of long-term high-speed operation.

[0057] A vertical cylinder 201 is fitted onto the outside of the centrifuge cylinder 110, forming an annular waste liquid channel. Waste liquid, containing unreacted silane coupling agent, is ejected by centrifugal force and flows along the cylinder wall into a guide hood 204. The guide hood 204 has a cone angle of 150°, guiding the waste liquid into a receiving tank 202. The sides of the guide hood 204 extend into the guide tank, maintaining a 30mm gap with the guide bucket 107 (φ100mm diameter) at the lower end of the centrifuge cylinder 110, thus preventing waste liquid from entering the quartz sand discharge path. The waste liquid collected in the receiving tank 202 passes through a φ50mm... The drain pipe 203 of m transports the modifier to the recycling system, realizing the recycling of the modifier. The coordinated design of the vertical cylinder 201 and the diversion hood 204 separates the waste liquid and quartz sand, avoiding the waste liquid from entering the washing unit with the quartz sand and causing the waste of the agent. The agent recovery rate is improved. The vertical cylinder 201 and the diversion hood 204 are made of PPH material, which is resistant to acid and alkali corrosion and lightweight, reducing the weight compared to metal materials. The receiving tank 202 is lined with butyl rubber to prevent waste liquid leakage. The drain pipe 203 is made of UPVC material, which is suitable for the weakly acidic environment of the waste liquid.

[0058] Multiple sets of conical buffer plates 117 are spaced axially inside the centrifuge. Under centrifugal force, the waste liquid adhering to the surface of the quartz sand is thrown against the cylinder wall and flows along the wall into the bottom waste liquid collection tank, while the quartz sand falls through the gaps at the edges of the buffer plates 117. It then repeats the buffering, centrifugation, and falling process through the lower buffer plates 117, finally being continuously discharged from the bottom outlet and directly entering the multi-stage countercurrent washing tank. The rotation speed of the centrifuge cylinder 110 is adjusted in conjunction with the feed rate via a PLC system to ensure that the centrifugal force matches the processing capacity, the waste liquid separation rate is stable, and the downtime caused by intermittent operation is eliminated. This is consistent with the modified reaction unit. The washing and drying units form a seamless automated production line, increasing overall capacity and eliminating the need for frequent start-stop cycles. This improves the operating efficiency of motor 102. During frequent start-stop cycles, the centrifugal motor 102 needs to repeatedly accelerate from zero to its operating speed, with the starting current being 3-5 times the rated current. This results in significant energy loss during each start-stop cycle. This system reduces energy consumption. When opening and closing the equipment, dust and moisture from the outside air can easily enter the separation chamber and come into contact with the modified quartz sand, which is rich in hydrophilic groups, leading to secondary pollution. This system reduces the likelihood of contamination. Frequent manual material handling increases labor intensity, but this system reduces labor intensity and labor costs.

[0059] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A continuous extraction device for composite hydrophilic modified quartz sand, characterized in that: include, The separation structure (100) includes a centrifuge cylinder (110), a ring seat one (104) and a ring seat two (105) sleeved on the outer sides of the upper and lower ends of the centrifuge cylinder (110), two sets of rotating collars (114) sleeved on the outer wall of the centrifuge cylinder (110) and rotatably mounted on the outer walls of the ring seat one (104) and the ring seat two (105), a buffer cavity (113) located inside the centrifuge cylinder (110) and distributed longitudinally at equal intervals, a through hole (118) opened on the outer wall of the centrifuge cylinder (110) and distributed at equal intervals, a buffer plate (117) located inside the buffer cavity (113) with a conical main cross section and a gap between the outer side and the inner wall of the centrifuge cylinder (110), a gear ring (108) located at the upper end of the collar (114), a motor (102) located on one side of the centrifuge cylinder (110), and a gear (103) located at the upper end of the motor (102) and meshing with the gear ring (108). as well as; The diversion structure (200) includes a vertical cylinder (201) sleeved on the outside of the centrifuge cylinder (110).

2. The continuous extraction device for composite hydrophilic modified quartz sand according to claim 1, characterized in that: The centrifuge tube (110) is provided with a funnel (109) shaped at the upper end, the centrifuge tube (110) is provided with a guide bucket (107), the buffer plate (117) is provided with a central rod (120) at the center, and the outer wall of the upper end of the central rod (120) is provided with support rods (116) arranged in a ring array and connected to the inner wall of the buffer cavity (113).

3. The continuous extraction device for composite hydrophilic modified quartz sand according to claim 1, characterized in that: Both ends of the collar (114) are provided with annular grooves (119). The inner walls of the first ring seat (104) and the second ring seat (105) are rotatably mounted with balls (115) that are rolled on the inner walls of the grooves (119). Fixed rods (106) are arranged in annular array between the first ring seat (104) and the second ring seat (105).

4. The continuous extraction device for composite hydrophilic modified quartz sand according to claim 1, characterized in that: The centrifuge tube (110) is provided with longitudinally equidistant diffusion chambers (111) that are connected to the upper end of the buffer chamber (113) and whose inner diameter gradually increases from top to bottom. The centrifuge tube (110) is also provided with longitudinally equidistant guide chambers (112) that are connected to the upper end of the diffusion chamber (111) and the upper end of the buffer chamber (113) and whose inner diameter gradually decreases from top to bottom.

5. The continuous extraction device for composite hydrophilic modified quartz sand according to claim 1, characterized in that: The outer wall of the vertical cylinder (201) is fitted with a support frame (101) connected to the second ring seat (105). The upper end of the support frame (101) is provided with a ring-shaped receiving groove (202) that is fitted onto the outer side of the lower end of the vertical cylinder (201).

6. The continuous extraction device for composite hydrophilic modified quartz sand according to claim 5, characterized in that: One end of the receiving trough (202) is provided with a drain pipe (203), and the lower outer wall of the centrifuge cylinder (110) is fitted with a flow guide hood (204) that is annular, has a conical main cross-section, and has its sides located inside the flow guide trough and below the vertical cylinder (201).

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