Gravel separation equipment

Abstract

The invention provides gravel separation equipment, which belongs to the technical field of concrete production equipment and comprises a bottom frame, a vibrating frame and a pushing frame. The vibration frame is located over the bottom frame and connected with the bottom frame through a plurality of vibration springs. Wherein a screen plate and a bottom plate are arranged in the vibrating frame, a plurality of screen holes are formed in the screen plate, and the screen plate is used for screening sand and stones; the pushing frame comprises a plurality of transverse rods and longitudinal rods which are arranged at intervals, and the transverse rods and the longitudinal rods are fixed together; the transverse rods and the longitudinal rods are provided with ejector rods in one-to-one correspondence with the screen holes, and the diameter of the ejector rods is smaller than that of the screen holes. The pushing frame and the sieve plate are arranged in parallel, and the pushing frame is arranged in the vibration frame in a sliding mode in the height direction so that the ejector rods can enter and exit from the sieve holes in a reciprocating mode. Through the arrangement, the screening holes can be effectively prevented from being blocked, the screening efficiency is improved, and the problem that when an existing vibrating screen is used for screening sand and stones, the stones easily block the screening holes of the screening plate is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete production equipment, and in particular relates to sand and gravel separation equipment. Background Art

[0002] The sand and gravel separator is a device used to separate sand and stone in the sand and gravel mixture. It is one of the core equipment of the concrete recycling system. After the concrete production is completed, there will be a large amount of concrete on the inner wall of the tank. By flushing the tank with high-pressure water, the concrete can be flushed out of the tank and enter the cleaning pool. After the concrete is rinsed clean, the slurry water enters the wastewater treatment equipment, and the sand and gravel enter the sand and gravel separation equipment for sand and gravel separation.

[0003] In the prior art, a sieve plate is provided in a sand and gravel separator. Under the vibration of the vibrating screen, the sieve plate can separate the sand and gravel, and the separated sand and gravel are discharged from corresponding discharge ports respectively.

[0004] During the separation process, the sieve holes on the sieve plate may be blocked by stones, which will reduce the screening effect. Summary of the invention

[0005] The embodiment of the present invention provides a sand and gravel separation device, aiming to solve the technical problem in the prior art that the screen plate is easily blocked by gravel during use.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] Provided is a sand and gravel separation device, comprising:

[0008] chassis;

[0009] A vibration frame is located directly above the base frame, and the vibration frame is connected to the base frame through a plurality of vibration springs; wherein the vibration frame has a sieve plate and a base plate, the sieve plate has a plurality of sieve holes, and the sieve plate is used to screen sand and gravel;

[0010] The push frame includes a plurality of horizontal bars and vertical bars arranged at intervals, and the horizontal bars and the vertical bars are fixed together; the horizontal bars and the vertical bars are each provided with a push rod corresponding to the sieve holes one by one, and the diameter of the push rod is smaller than the diameter of the sieve holes; wherein the push frame is arranged parallel to the sieve plate, and the push frame is slidably arranged in the vibration frame along the height direction so that the push rod can reciprocate in and out of the sieve holes.

[0011] In a possible implementation, a slide rail is provided on the inner side wall of the vibration frame, and a sliding component slidably matched with the slide rail is provided on the push frame; wherein the sliding direction of the sliding component is perpendicular to the screen plate.

[0012] In a possible implementation, the slide rail includes:

[0013] A supporting component connected to the inner side wall of the vibration frame; the supporting component has a sliding groove on a side facing the push frame;

[0014] A guide rod is arranged in the slide groove; the two ends of the guide rod are fixedly connected to the top wall and the bottom wall of the slide groove respectively; wherein the sliding component is slidably arranged in the slide groove, and the sliding component has a through hole for the guide rod to pass through.

[0015] In a possible implementation, a push spring is provided in the slide groove, and two ends of the push spring are respectively connected to a top wall of the slide groove and a top wall of the sliding component to provide a downward elastic force to the sliding component.

[0016] In a possible implementation, a cam is rotatably provided on one side of the vibration frame, and the cam is located at the bottom of the push frame and abuts against the push frame;

[0017] A driving structure is provided on the outer side of the vibration frame, and an output shaft of the driving structure passes through the side wall of the vibration frame and is connected to the cam; the push frame is always in contact with the outer peripheral wall of the cam under the action of its own gravity.

[0018] In a possible implementation, a pressure plate is fixedly provided on the push frame, and the pressure plate is in contact with the outer peripheral wall of the cam.

[0019] In a possible implementation, the top rod includes a fixed rod and an adjusting rod, the fixed rod is fixed on the cross rod or the longitudinal rod, and the adjusting rod is plug-fitted with the fixed rod;

[0020] Among them, the fixed rod has a slot, the adjusting rod has an inserting part that is plugged into the slot, the inserting part is provided with a plurality of pin holes at intervals along the inserting direction, and the fixed rod has a through hole aligned with one of the pin holes; the adjusting rod and the fixed rod are fixed by a pin shaft.

[0021] In a possible implementation manner, the top of the adjusting rod is a conical structure.

[0022] In a possible implementation manner, the fixing rod has a vent hole, and the vent hole is located at a bottom position of the fixing rod close to the slot.

[0023] The sand and gravel separation equipment provided by the present invention, compared with the prior art, has a vibration frame connected to the base frame by a vibration spring, so that it is easy for the vibration frame to vibrate; when screening sand and stone, the sand and stone mixture is poured into the vibration frame, and under the action of the vibration of the vibration frame, the screen plate can screen the sand and stone, the stone remains on the screen plate, and the sand passes through the screen plate and falls onto the bottom plate below; during the screening process, the push frame can slide back and forth in the height direction, so that the push rod can reciprocate in and out of the screen hole, and the stone stuck in the screen hole can be pushed out; through the above-mentioned arrangement of the present application, it is possible to effectively prevent the screen hole from being blocked, improve the screening efficiency, and solve the problem that the stone is easy to block the screen hole of the screen plate when the existing vibrating screen is screening sand and stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A front view of a vibrating frame portion of a sand and gravel separation device provided by an embodiment of the present invention;

[0025] Figure 2 A three-dimensional diagram of a vibrating frame portion of a sand and gravel separation device provided by an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of a driving structure and a vibration frame part of a sand and gravel separation device provided by an embodiment of the present invention;

[0027] Figure 4 A schematic diagram of the relative positions of a sieve plate and a bottom plate of a sand and gravel separation device provided in an embodiment of the present invention;

[0028] Figure 5 for Figure 4 The enlarged schematic diagram of the middle A part;

[0029] Figure 6 A schematic diagram of a screen plate and a push frame portion of a sand and gravel separation device provided in an embodiment of the present invention;

[0030] Figure 7 for Figure 6 The enlarged schematic diagram of the middle part B;

[0031] Figure 8 for Figure 6 The enlarged schematic diagram of the middle C part;

[0032] Fig. 9 A schematic diagram of a fixed rod and an adjusting rod portion of a sand and gravel separation device provided by an embodiment of the present invention;

[0033] Fig.10 for Fig. 9 The enlarged schematic diagram of the middle D part;

[0034] Fig.11 A cross-sectional view of a fixed rod portion of a sand and gravel separation device provided by an embodiment of the present invention;

[0035] Fig.12 A cross-sectional schematic diagram of a retaining ring disposed in a slide groove of a fixed rod of a sand and gravel separation device provided in an embodiment of the present invention.

[0036] Explanation of the reference numerals in the accompanying drawings: 1. Vibration frame; 11. Discharge port; 12. Guide plate; 13. Support plate; 2. Push frame; 21. Cross bar; 22. Longitudinal bar; 23. Push rod; 231. Fixed rod; 232. Adjusting rod; 233. Slot; 234. Connecting part; 235. Pin hole; 236. Pin shaft; 237. Vent hole; 238. Retaining ring; 24. Sliding component; 25. Pressing plate; 3. Vibration spring; 4. Sieve plate; 41. Sieve hole; 5. Bottom plate; 6. Slide rail; 61. Support component; 611. Slide groove; 62. Guide rod; 63. Push spring; 7. Cam; 71. Driving structure. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] Please also read Figures 1 to 12 , now a sand and gravel separation device provided by the present invention is described. The sand and gravel separation device comprises a base frame (not shown in the figure), a vibrating frame 1 and a push frame 2; the vibrating frame 1 is located directly above the base frame, and the vibrating frame 1 is connected to the base frame through a plurality of vibrating springs 3; wherein, the vibrating frame 1 has a sieve plate 4 and a bottom plate 5, and the sieve plate 4 has a plurality of sieve holes 41, and the sieve plate 4 is used to screen sand and gravel; the push frame 2 comprises a plurality of cross bars 21 and longitudinal bars 22 arranged at intervals, and the cross bars 21 and the longitudinal bars 22 are fixed together; the cross bars 21 and the longitudinal bars 22 are each provided with a push rod 23 corresponding to the sieve holes 41, and the diameter of the push rod 23 is smaller than the diameter of the sieve holes 41; wherein, the push frame 2 is arranged in parallel with the sieve plate 4, and the push frame 2 is slidably arranged in the vibrating frame 1 along the height direction, so that the push rod 23 can reciprocate in and out of the sieve holes 41. The sieve plate 4 is fixed to the vibration frame 1 by bolts. When the sieve plate 4 is damaged, the sieve plate 4 can be removed from the vibration frame 1; by setting up the horizontal rod 21 and the vertical rod 22, the sand can pass through the push frame 2 and finally fall onto the bottom plate 5 below; since the diameter of the push rod 23 is smaller than the diameter of the sieve hole 41, the sand can still pass through the sieve hole 41 when the push rod 23 enters the sieve hole 41, so the screening operation of the sieve plate 4 will not be affected during the reciprocating sliding process of the push rod 23, and the reciprocating sliding of the push rod 23 can reduce the stones stuck in the sieve hole 41, thereby reducing the problem of blockage of the sieve hole 41.

[0039] The present invention provides a sand and gravel separation equipment. Compared with the prior art, the vibration frame 1 is connected to the base frame through the vibration spring 3, so it is easy for the vibration frame 1 to vibrate; when screening sand and stone, the sand and stone mixture is poured into the vibration frame 1, and under the action of the vibration of the vibration frame 1, the screen plate 4 can screen the sand and stone, and the stone remains on the screen plate 4, and the sand passes through the screen plate 4 and falls onto the bottom plate 5 below; during the screening process, the push frame 2 can slide back and forth in the height direction, so that the push rod 23 can reciprocate in and out of the screen hole 41 to push out the stone stuck in the screen hole 41; through the above-mentioned arrangement of the present application, it is possible to effectively prevent the screen hole 41 from being blocked, improve the screening efficiency, and solve the problem that the stone is easy to block the screen hole 41 of the screen plate 4 when the existing vibrating screen is screening sand and stone.

[0040] It should be noted that the sieve plate 4 and the bottom plate 5 are both inclined, and the sand and gravel mixture falls from the high end of the sieve plate 4 into the vibration frame 1. During the movement of the sand and gravel mixture from the high end to the bottom end on the sieve plate 4, the sand can pass through the sieve plate 4 and fall onto the bottom plate 5 below. Therefore, the sieve plate 4 can screen the sand and stone. The vibration frame 1 has a discharge port 11 at the bottom end of the sieve plate 4, and a guide plate 12 is arranged at the position of the discharge port 11. The vibration frame 1 is also provided with a discharge port 11 at the bottom end of the bottom plate 5, and a guide plate 12 is also arranged at the position of the discharge port 11. A vibration motor (not shown in the figure) is arranged on the outer wall of the vibration frame 1. By starting the vibration motor, the vibration frame 1 can be continuously vibrated, so that the vibration frame 1 is convenient for screening the sand and stone.

[0041] In some embodiments, Figures 1 to 12 As shown, a slide rail 6 is provided on the inner side wall of the vibration frame 1 , and a sliding component 24 slidably matched with the slide rail 6 is provided on the push frame 2 ; wherein the sliding direction of the sliding component 24 is perpendicular to the screen plate 4 .

[0042] It should be noted that, through the sliding cooperation between the sliding component 24 and the slide rail 6, the sliding direction of the push frame 2 can be limited, making the sliding of the push frame 2 more stable and smooth; since the sliding direction of the sliding component 24 is perpendicular to the sieve plate 4, during the sliding process, the push rod 23 can always be aligned with the sieve hole 41, and when the push rod 23 is slightly deformed, the interference between the push rod 23 and the sieve plate 4 and the inability to insert into the sieve hole 41 is reduced.

[0043] Exemplarily, the slide rail 6 and the sliding component 24 form a set of sliding structures, and multiple sets of sliding structures are respectively provided on both sides of the push frame 2. Through the above arrangement, the stability of the push frame 2 during the sliding process can be increased.

[0044] In some embodiments, Figures 1 to 12As shown, the slide rail 6 includes a supporting component 61 and a guide rod 62; the supporting component 61 is connected to the inner wall of the vibration frame 1; the supporting component 61 has a slide groove 611 on the side facing the push frame 2; the guide rod 62 is arranged in the slide groove 611; the two ends of the guide rod 62 are respectively fixedly connected to the top wall and the bottom wall of the slide groove 611; wherein, the sliding component 24 is slidably arranged in the slide groove 611, and the sliding component 24 has a through hole for the guide rod 62 to pass through.

[0045] It should be noted that the support component 61 is fixed to the vibration frame 1 by bolts, and the two ends of the guide rod 62 are connected to the support component 61 by bolts; during installation, the guide rod 62 is first passed through the sliding component 24, and then the guide rod 62 and the sliding component 24 are placed into the slide groove 611 together, and finally the relative position of the guide rod 62 and the support component 61 is fixed by bolts. Through the above arrangement, the slide groove 611 of the support component 61 provides a sliding space for the sliding component 24, and the guide rod 62 can limit the up and down swinging of the sliding component 24. In summary, the above arrangement can limit and guide the sliding component 24.

[0046] In some embodiments, Figures 1 to 12 As shown, a cam 7 is rotatably provided on one side of the vibration frame 1, and the cam 7 is located at the bottom of the push frame 2 and abuts against the push frame 2; wherein, a driving structure 71 is provided on the outer side of the vibration frame 1, and the output shaft of the driving structure 71 passes through the side wall of the vibration frame 1 and is connected to the cam 7; the push frame 2 is always in contact with the outer peripheral wall of the cam 7 under the action of its own gravity.

[0047] It should be noted that the driving structure 71 includes a driving motor, which is arranged on the outside of the vibration frame 1; a support plate 13 is fixedly provided on the vibration frame 1, and the driving motor is installed on the support plate 13, and the support plate 13 can support the driving motor. The output shaft of the driving motor passes through the side wall of the vibration frame 1 and is connected to one of the center positions of the cam 7; when the distal position of the cam 7 rotates upward, the cam 7 can drive the push frame 2 to move upward; when the distal position of the cam 7 rotates downward, the push frame 2 falls under the action of its own gravity and is always in contact with the outer peripheral wall of the cam 7; through the above process, the purpose of the push rod 23 on the push frame 2 reciprocating in and out of the sieve hole 41 can be achieved.

[0048] In some embodiments, Figures 1 to 12 As shown, a push spring 63 is provided in the slide groove 611 , and two ends of the push spring 63 are respectively connected to the top wall of the slide groove 611 and the top wall of the sliding component 24 to provide a downward elastic force to the sliding component 24 .

[0049] It should be noted that the push spring 63 is sleeved on the guide rod 62, and the push spring 63 can provide a downward elastic force to the sliding part 24; when the distal position of the cam 7 rotates downward, the push frame 2 abuts against the outer peripheral wall of the cam 7 under the action of its own gravity and spring elastic force, thereby facilitating the push frame 2 to reset downward, so that the push frame 2 is away from the screen plate 4, reducing the movement resistance caused by factors such as friction, further improving the sliding efficiency of the push frame 2 and the operating stability of the equipment, and also helping the push rod 23 to better enter and exit the screen hole 41, thereby improving the screening effect.

[0050] In addition, the rotation of the cam 7 and the reciprocating movement of the push frame 2 can also provide a vibration force to the vibration frame 1, so that the screen plate 4 can screen the sand and stone.

[0051] In some embodiments, Figures 1 to 12 As shown, a pressure plate 25 is fixedly provided on the push frame 2 , and the pressure plate 25 contacts the outer peripheral wall of the cam 7 .

[0052] It should be noted that the pressure plate 25 fixed on the pushing frame 2 is in contact with the outer peripheral wall of the cam 7, which can ensure effective contact and force transmission between the pushing frame 2 and the cam 7, further improve the stability and reliability of the movement of the pushing frame 2, avoid problems such as poor movement of the pushing frame 2 or reduced screening efficiency due to poor contact, and is beneficial to improving the operating accuracy and service life of the equipment.

[0053] In some embodiments, Figures 1 to 12 As shown, the top rod 23 includes a fixed rod 231 and an adjusting rod 232, the fixed rod 231 is fixed on the cross rod 21 or the longitudinal rod 22, and the adjusting rod 232 is plugged into and matched with the fixed rod 231; wherein, the fixed rod 231 has a slot 233, the adjusting rod 232 has a plug-in portion 234 plug-inly matched with the slot 233, a plurality of pin holes 235 are arranged on the plug-in portion 234 at intervals along the plug-in direction, and the fixed rod 231 has a through hole aligned with one of the pin holes 235; the adjusting rod 232 and the fixed rod 231 are fixed by a pin shaft 236.

[0054] It should be noted that when the adjusting rod 232 is worn and shortened, the adjusting rod 232 can be adjusted upward and fixed by the pin 236. The above arrangement can improve the utilization rate of the adjusting rod 232, and the adjusting rod 232 can work normally even after the adjusting rod 232 is worn. When the adjusting rod 232 is seriously damaged and cannot be used any more, only the adjusting rod 232 needs to be replaced, without replacing the entire push frame 2, so maintenance is convenient.

[0055] Exemplarily, the pin hole 235 on the plug-in portion 234 may also be a threaded hole. When the plug-in portion 234 is plugged into and matched with the slot 233 , the plug-in portion 234 may be fixed by bolts to improve stability.

[0056] In some embodiments, Figures 1 to 12 As shown, the top of the adjustment rod 232 is a conical structure.

[0057] It should be noted that the top of the adjusting rod 232 is a conical structure. The conical structure of the top rod 23 can better clean and dredge the sieve hole 41 when entering and exiting the sieve hole 41, reducing the possibility of blockage of the sieve hole 41 and improving the screening efficiency. At the same time, the conical structure also helps the top rod 23 to be more easily inserted into the sieve hole 41.

[0058] In some embodiments, Figures 1 to 12 As shown, the fixing rod 231 has a vent hole 237 , and the vent hole 237 is located at the bottom of the fixing rod 231 close to the slot 233 .

[0059] It should be noted that, by providing the vent hole 237 on the fixed rod 231, when replacing the adjusting rod 232, the air outlet of the high-pressure air gun is aligned with the vent hole 237, and pressurized gas is introduced into the vent hole 237. The pressurized gas can enter the slot 233 from the vent hole 237 and finally fly out from the opening at the top of the slot 233. Through the above-mentioned arrangement, the sand in the slot 233 can be cleaned, making it easier to insert the plug-in part 234 on the new adjusting rod 232 into the slot 233.

[0060] Exemplarily, a retaining ring 238 is provided at a position above the vent hole 237 of the slot 233, and the bottom of the plug-in portion 234 contacts the retaining ring 238, so that a cavity is formed between the bottom of the plug-in portion 234 and the bottom of the slot 233; when disassembling the adjusting rod 232, if the plug-in portion 234 is difficult to be pulled out of the slot 233, pressurized gas can be introduced into the vent hole 237, and the pressurized gas enters the cavity, and the plug-in portion 234 is pushed out by the pressure of the gas.

[0061] Exemplarily, in order to reduce the amount of sand entering the vent hole 237 , a rubber plug may be inserted into the vent hole 237 , with the other end of the rubber plug being located outside the fixing rod 231 , so that the operator can easily pull out the rubber plug.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand and gravel separation device, characterized in that: include: chassis; A vibration frame is located directly above the base frame, and the vibration frame is connected to the base frame through a plurality of vibration springs; wherein the vibration frame has a sieve plate and a base plate, the sieve plate has a plurality of sieve holes, and the sieve plate is used to screen sand and gravel; The push frame includes a plurality of horizontal bars and vertical bars arranged at intervals, and the horizontal bars and the vertical bars are fixed together; the horizontal bars and the vertical bars are each provided with a push rod corresponding to the sieve holes one by one, and the diameter of the push rod is smaller than the diameter of the sieve holes; wherein the push frame is arranged parallel to the sieve plate, and the push frame is slidably arranged in the vibration frame along the height direction so that the push rod can reciprocate in and out of the sieve holes.

2. A sand and gravel separation device according to claim 1, characterized in that: A slide rail is provided on the inner side wall of the vibration frame, and a sliding component slidably matched with the slide rail is provided on the push frame; wherein the sliding direction of the sliding component is perpendicular to the screen plate.

3. A sand and gravel separation device as claimed in claim 2, characterized in that: The slide rail comprises: A supporting component connected to the inner side wall of the vibration frame; the supporting component has a sliding groove on one side facing the push frame; A guide rod is arranged in the slide groove; the two ends of the guide rod are fixedly connected to the top wall and the bottom wall of the slide groove respectively; wherein the sliding component is slidably arranged in the slide groove, and the sliding component has a through hole for the guide rod to pass through.

4. A sand and gravel separation device as claimed in claim 3, characterized in that: The slide groove is provided with a push spring, and two ends of the push spring are respectively connected to the top wall of the slide groove and the top wall of the sliding component to provide downward elastic force to the sliding component.

5. A sand and gravel separation device according to any one of claims 2 to 4, characterized in that: A cam is rotatably provided on one side of the vibration frame, and the cam is located at the bottom of the push frame and abuts against the push frame; A driving structure is provided on the outer side of the vibration frame, and an output shaft of the driving structure passes through the side wall of the vibration frame and is connected to the cam; the push frame is always in contact with the outer peripheral wall of the cam under the action of its own gravity.

6. A sand and gravel separation device as claimed in claim 5, characterized in that: A pressing plate is fixedly provided on the push frame, and the pressing plate contacts the outer peripheral wall of the cam.

7. The sand and gravel separation equipment according to claim 1, characterized in that: The top rod comprises a fixed rod and an adjusting rod, the fixed rod is fixed on the cross rod or the longitudinal rod, and the adjusting rod is plugged and matched with the fixed rod; Among them, the fixed rod has a slot, the adjusting rod has an inserting part that is plugged into the slot, the inserting part is provided with a plurality of pin holes at intervals along the inserting direction, and the fixed rod has a through hole aligned with one of the pin holes; the adjusting rod and the fixed rod are fixed by a pin shaft.

8. A sand and gravel separation device as claimed in claim 7, characterized in that: The top of the adjusting rod is a conical structure.

9. The sand and gravel separation equipment according to claim 7, characterized in that: The fixing rod is provided with a vent hole, and the vent hole is located at the bottom of the fixing rod close to the slot.

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