CN113431548A - Multi-stage proppant feeding device with anti-overflow function for oil exploitation - Google Patents
Multi-stage proppant feeding device with anti-overflow function for oil exploitation Download PDFInfo
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- CN113431548A CN113431548A CN202110909782.0A CN202110909782A CN113431548A CN 113431548 A CN113431548 A CN 113431548A CN 202110909782 A CN202110909782 A CN 202110909782A CN 113431548 A CN113431548 A CN 113431548A
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- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 238000005192 partition Methods 0.000 claims description 34
- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
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- 239000004744 fabric Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
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- 239000007924 injection Substances 0.000 description 8
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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Abstract
The invention relates to the field of proppant throwing, in particular to a proppant multistage throwing device with an anti-overflow function for oil exploitation, which comprises a first support frame, a placing frame, a throwing component, a pushing component and the like; the first support frame is provided with a placing frame, the placing frame is provided with a feeding assembly, and the pushing assembly is arranged on the placing frame. Through the cooperation of blocking frame and taking the screen cloth drum, the blocking frame is opened and to be discharged the water in guide frame middle part, can prevent that the proppant of follow-up input from spilling over along with water together, simultaneously under the effect of taking the screen cloth drum, can prevent that the proppant from flowing along with water together, has avoided the waste of resource, has reached the effect that can prevent effectively that the proppant from spilling over.
Description
Technical Field
The invention relates to the field of proppant feeding, in particular to a proppant multistage feeding device with an anti-overflow function for oil exploitation.
Background
The conventional fracturing technology generally adopts a propping agent to fill a fracture to keep the fracture open, so that the fracture has higher flow conductivity, and an effective production channel is established, so that the laying of the propping agent in the fracture plays a crucial role in the success of operation in the hydraulic fracturing.
In the field fracturing of the oil field in China at present, proppants with different particle sizes are injected into a fracture in a segmented mode according to a certain proportion, so that the pressure resistance of the proppants can be improved, and the fracture has higher flow conductivity.
Disclosure of Invention
In view of the above, it is necessary to provide a multi-stage proppant feeding device with an anti-overflow function for oil exploitation, which can automatically and sequentially feed three kinds of proppants and effectively prevent the proppant from overflowing, so as to solve the problems that it is difficult to feed the proppants in stages according to the particle size and the proppants easily overflow during the feeding of the proppants, which are proposed in the background above.
The utility model provides a multistage device of puting in of proppant with anti-overflow function for oil development, including first support frame, place the frame, throw the material subassembly, promote subassembly, switch module and separation subassembly, be equipped with on the first support frame and place the frame, place to be equipped with on the frame and throw the material subassembly, promote the subassembly and locate and place on the frame, switch module locates on the first support frame, separation subassembly is located and is thrown on the material subassembly.
Optionally, the feeding assembly comprises a guide frame, a push plate frame, a baffle frame, a push rod, a connecting pipe, a second support frame, a swinging plate, a slotting limit plate, a limit frame, a reset push plate and a telescopic spring, the guide frame is connected to the first support frame, a hole is arranged on one side of the guide frame, the guide frame is connected to the placing frame, three push plate frames are distributed and slidably connected to the placing frame, the baffle frame is connected to the push plate frame and is in contact with the placing frame, the push rod is connected to one end of the push plate frame, the connecting pipe is connected to the bottom of the guide frame, the second support frame is distributed and connected to the placing frame, the swinging plate is rotatably connected to the second support frame, the slotting limit plate is connected to the push rod, the slotting limit plate is movably connected to the swinging plate, three limit frames are distributed and connected to one side of the placing frame, the reset push plate is slidably connected to the limit frame, the reset push plate is in contact with the swinging plate, an extension spring is connected between the reset push plate and the limiting frame.
Optionally, the pushing assembly comprises an electric push rod, a first pushing frame, a sliding pushing frame and a first return spring, the electric push rod is connected to the bottom of the outer frame, the first pushing frame is connected to one end of the electric push rod, the sliding pushing frame is connected to the first pushing frame in a sliding mode, and the first return spring is connected between the sliding pushing frame and the first pushing frame.
Optionally, the switching component includes a supporting chassis, a guide plate, a first compression spring, a limiting strip, a wedge, a slider and a second reset spring, the supporting chassis is connected to the first supporting frame in a linkage manner, the guide plate is connected to the supporting chassis in a sliding manner, a sliding groove is formed in the top of the guide plate, the guide plate is matched with the sliding pushing frame in a sliding manner, two pairs of first compression springs are connected between the guide plate and the supporting chassis, the guide plate is connected to a pair of limiting strips in a linkage manner, the guide plate is connected to a pair of wedge strips in a linkage manner, the guide plate is connected to the wedge in a linkage manner, a pair of sliders are connected to the guide plate in a sliding manner, and the second reset spring is connected between the slider and the guide plate.
Optionally, the blocking assembly includes a first partition plate, a first slotting push frame, an extension spring, a support seat, a swing rod, a slotting transmission frame, a second partition plate, a second slotting push frame and a second compression spring, the guide frame is slidably connected with the first partition plate, the first partition plate is slidably connected with the first slotting push frame, the extension spring is connected between the first slotting push frame and the first partition plate, the support seat is connected to the guide frame, the swing rod is rotatably connected to the support seat, the swing rod is in limit fit with the first slotting push frame, the first push frame is connected with the slotting transmission frame, the slotting transmission frame is in limit fit with the swing rod, the guide frame is slidably connected with the second partition plate, the second partition plate is slidably connected with the second slotting push frame, the second slotting push frame is in limit fit with the swing rod, and the second compression spring is connected between the second slotting push frame and the second partition plate.
Optionally, the anti-overflow device further comprises an anti-overflow assembly, the anti-overflow assembly is arranged on the guide frame, the anti-overflow assembly comprises a second pushing frame, a blocking frame, a third reset spring, a cylinder with a screen, a U-shaped baffle and a flow guide pipe, the second pushing frame is connected to the first slotted pushing frame, the blocking frame is connected to the guide frame in a sliding mode, the blocking frame is in contact with the guide frame, the third reset spring is connected between the guide frame and the blocking frame, the cylinder with the screen is connected to one side of the inner wall of the guide frame, the U-shaped baffle is connected to the first support frame, the U-shaped baffle is connected to the guide frame, and the flow guide pipe is connected to the first support frame.
The invention has the beneficial effects that:
through the cooperation of each part in the equipment for three kinds of proppant can be put in proper order to equipment, provide convenience for follow-up other injection device with the proppant sectional type injection fracture of different particle sizes, thereby improved the water conservancy diversion ability in fracture, reached the effect that can put in three kinds of proppant in proper order automatically.
Through the cooperation of blocking frame and taking the screen cloth drum, the blocking frame is opened and to be discharged the water in guide frame middle part, can prevent that the proppant of follow-up input from spilling over along with water together, simultaneously under the effect of taking the screen cloth drum, can prevent that the proppant from flowing along with water together, has avoided the waste of resource, has reached the effect that can prevent effectively that the proppant from spilling over.
Because the slider highly flushes with the deflector for the sliding push frame can not blocked by the spout on the deflector at the in-process that resets, makes the follow-up initial position that can reset to of sliding push frame, and the equipment secondary of being convenient for is put in the proppant.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a partial perspective view of the feeding assembly of the present invention.
Fig. 4 is a schematic perspective view of the pushing assembly of the present invention.
FIG. 5 is a schematic diagram of a first partially assembled body of the switching assembly of the present invention.
FIG. 6 is a schematic diagram of a second partially separated body structure of the switching assembly of the present invention.
Figure 7 is a schematic perspective view of a barrier assembly of the present invention.
FIG. 8 is a partially cut-away perspective view of the spill guard assembly of the present invention.
FIG. 9 is a schematic view of a first partially assembled body of the spill guard assembly of the present invention.
FIG. 10 is a schematic view of a second partially assembled body of the spill guard assembly of the present invention.
Reference numbers in the drawings: 1: first support frame, 2: placing frame, 3: feeding assembly, 31: guide frame, 32: carriage frame, 33: baffle frame, 34: push rod, 35: connecting pipe, 351: second support frame, 36: swing plate, 37: slotted stop plate, 38: spacing, 39: reset push plate, 310: extension spring, 4: pushing assembly, 41: electric putter, 42: first pushing frame, 43: sliding push frame, 44: first return spring, 5: switching assembly, 51: support chassis, 52: guide plate, 53: first compression spring, 54: spacing, 55: wedge bar, 56: wedge block, 57: slider, 58: second return spring, 6: barrier assembly, 61: first separator, 62: first slot pushing frame, 63: tension spring, 64: supporting seat, 65: swing lever, 651: slotted drive frame, 66: second separator, 67: second slot pushing frame, 68: second compression spring, 7: spill-proof assembly, 71: second pushing frame, 72: blocking frame, 73: third return spring, 74: cylinder with screen, 75: u-shaped baffle, 76: and a flow guide pipe.
Detailed Description
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
Example 1
The utility model provides a multistage device of puting in of proppant that has anti-overflow function for oil development, as shown in fig. 1-10, including first support frame 1, place frame 2, throw material subassembly 3, promote subassembly 4, switch module 5 and separation subassembly 6, be equipped with on first support frame 1 and place frame 2, it throws material subassembly 3 to be equipped with on placing frame 2, throw material subassembly 3 and be arranged in putting in proper order the proppant that places in frame 2 to direction frame 31, promote subassembly 4 and locate and place on frame 2, switch module 5 locates on first support frame 1, separation subassembly 6 locates and throws on material subassembly 3.
The feeding assembly 3 comprises a guide frame 31, a push plate frame 32, a baffle plate frame 33, a push rod 34, a connecting pipe 35, a second support frame 351, a swinging plate 36, a slotted limiting plate 37, a limiting frame 38, a reset push plate 39 and a telescopic spring 310, wherein the guide frame 31 is connected to the first support frame 1, a hole is formed in one side of the guide frame 31, the guide frame 31 is connected with the placing frame 2, the three push plate frames 32 are distributed and connected to the placing frame 2 in a sliding manner, the push plate frames 32 are used for pushing the propping agents in the placing frame 2 into the guide frame 31, the baffle plate frame 33 is connected to the push plate frame 32, the baffle plate frame 33 is in contact with the placing frame 2, the push rod 34 is connected to one end of the push plate frame 32, the connecting pipe 35 is connected to the bottom of the guide frame 31, the connecting pipe 35 is used for conveying the propping agents into other injection devices, the second support frame 351 is connected to the placing frame 2 in a distributed manner, the swinging plate 36 is connected to the second support frame 351 in a rotating manner, the swinging plate 36 is used for pushing the reset push plate 39 to move towards the direction close to the placing frame 2, the pushing rod 34 is connected with a slotted limiting plate 37, the slotted limiting plate 37 is movably connected with the swinging plate 36, three limiting frames 38 are connected on one side of the placing frame 2 in a distributed mode, the limiting frames 38 are connected with the reset push plate 39 in a sliding mode, the reset push plate 39 is used for pushing the swinging plate 36 and the devices on the swinging plate to reset, the reset push plate 39 is in contact with the swinging plate 36, an expansion spring 310 is connected between the reset push plate 39 and the limiting frames 38, and the expansion spring 310 is used for driving the reset push plate 39 to reset.
The pushing assembly 4 comprises an electric push rod 41, a first pushing frame 42, a sliding pushing frame 43 and a first reset spring 44, the electric push rod 41 is connected to the outer bottom of the placing frame 2, the electric push rod 41 is used for driving the first pushing frame 42 and the upper device to reciprocate, the first pushing frame 42 is connected to one end of the electric push rod 41, the sliding pushing frame 43 is connected to the first pushing frame 42 in a sliding mode, the sliding pushing frame 43 is used for pushing the pushing rod 34 and the upper device to move towards the direction close to the guide frame 31, the first reset spring 44 is connected between the sliding pushing frame 43 and the first pushing frame 42, and the first reset spring 44 is used for driving the sliding pushing frame 43 to reset.
The switching assembly 5 comprises a supporting chassis 51, a guide plate 52, a first compression spring 53, a limit strip 54, a wedge strip 55, a wedge block 56, a slide block 57 and a second return spring 58, wherein the supporting chassis 51 is connected to the first supporting frame 1, the guide plate 52 is slidably connected to the supporting chassis 51, under the guiding action of the guide plate 52, the sliding push frame 43 moves along the sliding groove on the guide plate 52, the sliding groove is formed in the top of the guide plate 52, the guide plate 52 is in sliding fit with the sliding push frame 43, two pairs of first compression springs 53 are connected between the guide plate 52 and the supporting bottom frame 51, the first compression springs 53 are used for driving the guide plate 52 and the upper device to reset, a pair of limiting strips 54 are connected to the guide plate 52, a pair of wedge strips 55 are connected to the guide plate 52, a wedge block 56 is connected to the guide plate 52, a pair of sliding blocks 57 are connected to the guide plate 52 in a sliding mode, and a second reset spring 58 is connected between the sliding blocks 57 and the guide plate 52.
The blocking component 6 comprises a first partition board 61, a first slotted push frame 62, an extension spring 63, a support seat 64, a swing rod 65, a slotted transmission frame 651, a second partition board 66, a second slotted push frame 67 and a second compression spring 68, the guide frame 31 is slidably connected with the first partition board 61, the first partition board 61 is slidably connected with the first slotted push frame 62, the first slotted push frame 62 is used for driving the first partition board 61 to move towards the direction far away from the first support frame 1 through the extension spring 63, the extension spring 63 is connected between the first slotted push frame 62 and the first partition board 61, the support seat 64 is connected to the guide frame 31, the swing rod 65 is rotatably connected to the support seat 64, under the action of the swing rod 65, the first slotted push frame 62 can move towards the direction far away from the first support frame 1, the swing rod 65 is in spacing fit with the first slotted push frame 62, the first push frame 42 is connected with the slotted transmission frame 651, the slotted transmission frame 651 is used for driving the swinging rod 65 and an upper device to move, the slotted transmission frame 651 is in limit fit with the swinging rod 65, the guide frame 31 is connected with a second partition plate 66 in a sliding mode, the second partition plate 66 is connected with a second slotted push frame 67 in a sliding mode, the second slotted push frame 67 is used for driving the second partition plate 66 to move towards the direction close to the first support frame 1 through a second compression spring 68, the second slotted push frame 67 is in limit fit with the swinging rod 65, and a second compression spring 68 is connected between the second slotted push frame 67 and the second partition plate 66.
The inside of the placing frame 2 is filled with three proppants with different particle sizes, the three proppants with different particle sizes are separated by the placing frame 2, the electric push rod 41 is manually controlled to contract, so that the first pushing frame 42 and the device thereon move towards the direction close to the guide frame 31, the sliding pushing frame 43 moves along the sliding groove on the guide plate 52 under the guiding action of the guide plate 52, in the process, the sliding pushing frame 43 pushes one of the pushing rods 34 and the device thereon to move towards the direction close to the guide frame 31, so that one of the baffle frames 33 does not block one of the discharge holes on the placing frame 2, and one of the pushing frame 32 pushes one of the proppants in the placing frame 2 into the guide frame 31.
During the process that the first pushing frame 42 and the devices thereon move towards the direction close to the guide frame 31, the swing rod 65 swings, under the action of the swing rod 65, the first slotted pushing frame 62 moves towards the direction away from the first support frame 1, the stretched extension spring 63 is restored, meanwhile, the second slotted pushing frame 67 moves towards the direction close to the first support frame 1, the second slotted pushing frame 67 drives the second partition plate 66 to move towards the direction close to the first support frame 1 through the second compression spring 68, so that the second partition plate 66 is closed, and since one end of the connecting pipe 35 is connected with other injection devices and the other injection devices are filled with water, the closing of the second partition plate 66 can prevent the water in the other injection devices from continuously flowing upwards through the connecting pipe 35.
The swing rod 65 will continue to swing, the first slot pushing frame 62 will drive the first partition board 61 to move away from the first support frame 1 through the extension spring 63, so that the first partition board 61 is opened, and the proppant in the guide frame 31 can fall down onto the second partition board 66, meanwhile, the second slot pushing frame 67 will continue to move towards the direction close to the first support frame 1, and the second compression spring 68 will be extended accordingly.
The electric push rod 41 is manually controlled to extend, so that the first push frame 42 and the device thereon are reset, in the process, the sliding push frame 43 moves along one of the wedge-shaped bars 55, the first reset spring 44 in the stretching state is continuously stretched, and then the sliding push frame 43 moves to the sliding chute in the middle of the guide plate 52.
During the process that one of the pushing rods 34 and the upper device thereof move towards the direction close to the guide frame 31, one of the swinging plates 36 pushes one of the returning pushing plates 39 to move towards the direction close to the placing frame 2, one of the extension springs 310 is stretched accordingly, during the process that the first pushing frame 42 and the upper device thereof are reset, the sliding pushing frame 43 does not push one of the pushing rods 34 any more, one of the returning pushing plates 39 is reset under the resetting action of one of the extension springs 310, and one of the returning pushing plates 39 pushes one of the swinging plates 36 and the upper device thereof to be reset.
During the resetting of the first pushing frame 42 and the devices thereon, the slotted driving frame 651 drives the swinging rod 65 and the devices thereon to be successively reset in opposite directions, so that the propping agent falling onto the second partition 66 can fall downward and be delivered into other injection devices through the connecting pipe 35.
After the sliding pushing frame 43 moves to the middle sliding groove on the guiding plate 52, the above operations are repeated twice, so that the rest two proppants in the placing frame 2 can be sequentially put into other injection devices, and an effect of automatically and sequentially putting in three proppants is achieved, in the process of putting in the third proppant, the sliding pushing frame 43 contacts with the wedge-shaped block 56, the sliding pushing frame 43 presses the wedge-shaped block 56 and the upper device to move downwards, the first compression spring 53 is compressed therewith, the sliding pushing frame 43 is reset along with the reset of the first reset spring 44, when the electric push rod 41 extends, the sliding pushing frame 43 moves to the initial position along the sliding groove on the guiding plate 52, the first reset spring 44 is stretched and reset accordingly, and the guiding plate 52 and the upper device thereof are reset under the reset action of the first compression spring 53.
Example 2
On the basis of embodiment 1, as shown in fig. 8 to 10, an anti-overflow assembly 7 is further included, the anti-overflow assembly 7 is disposed on the guide frame 31, the anti-overflow assembly 7 is used for preventing water in the guide frame 31 from overflowing, the anti-overflow assembly 7 includes a second pushing frame 71, a blocking frame 72, a third return spring 73, a cylinder with a screen 74, a U-shaped baffle plate 75 and a flow guide tube 76, the second pushing frame 71 is coupled to the first slotted pushing frame 62, the second pushing frame 71 is used for pushing the blocking frame 72 to move away from the support chassis 51, the blocking frame 72 is slidably coupled to the guide frame 31, the blocking frame 72 is in contact with the guide frame 31, the third return spring 73 is connected between the guide frame 31 and the blocking frame 72, the third return spring 73 is used for returning the blocking frame 72, the cylinder with the screen 74 is coupled to one side of the inner wall of the guide frame 31, and the screen cylinder 74 can prevent proppant from flowing out together with water, the U-shaped baffle 75 is connected with the first support frame 1, the U-shaped baffle 75 is connected with the guide frame 31, the first support frame 1 is connected with the guide pipe 76, and the outflow water can flow into other collecting devices through the guide pipe 76.
During the closing process of the second partition plate 66, the second pushing frame 71 pushes the blocking frame 72 to move away from the supporting chassis 51, the third return spring 73 is compressed, so that water in the middle of the guiding frame 31 can flow outwards through the holes on the guiding frame, the flowing water can flow into other collecting devices through the flow guide pipe 76, the water in the guiding frame 31 can be prevented from overflowing, subsequently-thrown proppant can not overflow together with water, the proppant can be further prevented from flowing out together with water through the screen-equipped cylinder 74, during the resetting process of the second pushing frame 71 and the devices on the second pushing frame 71, the blocking frame 72 can be reset under the resetting effect of the third return spring 73, finally, the electric push rod 41 is manually controlled to stop operation, and the three proppants can be thrown in sequence by using the device again after the above operations are repeated.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a multistage device of puting in of proppant that oil development was with having anti-overflow function which characterized in that, including first support frame, place the frame, throw the material subassembly, promote the subassembly, switch module and separation subassembly, be equipped with on the first support frame and place the frame, place to be equipped with on the frame and throw the material subassembly, promote the subassembly and locate and place on the frame, switch module locates on the first support frame, separation subassembly is located and is thrown on the material subassembly.
2. The multi-stage proppant feeding device with the anti-overflow function for oil exploitation as claimed in claim 1, wherein the feeding assembly comprises a guide frame, a pushing frame, a baffle frame, a pushing rod, a connecting pipe, a second support frame, a swinging plate, a slotted limiting plate, a limiting frame, a reset pushing plate and a telescopic spring, the guide frame is connected to the first support frame, a hole is arranged at one side of the guide frame, the guide frame is connected to the placing frame, three pushing frames are connected to the placing frame in a distributed sliding manner, the baffle frame is connected to the pushing frame, the baffle frame is in contact with the placing frame, the pushing rod is connected to one end of the pushing frame, the connecting pipe is connected to the bottom of the guide frame, the second support frame is connected to the placing frame in a distributed manner, the swinging plate is connected to the second support frame in a rotating manner, the slotted limiting plate is connected to the pushing rod, the slotted limiting plate is movably connected to the swinging plate, the three limiting frames are connected to one side of the placing frame in a distributed manner, the limiting frame is connected with a reset push plate in a sliding mode, the reset push plate is in contact with the swinging plate, and a telescopic spring is connected between the reset push plate and the limiting frame.
3. The multi-stage proppant feeding device with the anti-overflow function for oil exploitation according to claim 2, wherein the pushing assembly comprises an electric push rod, a first pushing frame, a sliding pushing frame and a first return spring, the electric push rod is connected to the outer bottom of the placement frame, the first pushing frame is connected to one end of the electric push rod, the sliding pushing frame is connected to the first pushing frame in a sliding manner, and the first return spring is connected between the sliding pushing frame and the first pushing frame.
4. The multi-stage proppant feeding device with the anti-overflow function for oil exploitation as recited in claim 3, wherein the switching assembly comprises a supporting chassis, a guide plate, a first compression spring, a limiting strip, a wedge block, a sliding block and a second return spring, the supporting chassis is coupled to the first supporting chassis, the guide plate is slidably connected to the supporting chassis, a sliding chute is formed in the top of the guide plate, the guide plate is slidably matched with the sliding pushing frame, two pairs of first compression springs are connected between the guide plate and the supporting chassis, a pair of limiting strips are coupled to the guide plate, a pair of wedge strips are coupled to the guide plate, the wedge block is coupled to the guide plate, a pair of sliding blocks are slidably connected to the guide plate, and the second return spring is connected between the sliding block and the guide plate.
5. The multi-stage proppant feeding device with anti-overflow function for oil exploitation as claimed in claim 4, wherein the blocking assembly comprises a first partition plate, a first slotted push frame, an extension spring, a support base, a swing rod, a slotted transmission frame, a second partition plate, a second slotted push frame and a second compression spring, the first partition plate is slidably connected to the guide frame, the first slotted push frame is slidably connected to the first partition plate, the extension spring is connected between the first slotted push frame and the first partition plate, the support base is connected to the guide frame, the swing rod is connected to the rotary support base, the swing rod is in spacing fit with the first slotted push frame, the slotted transmission frame is connected to the first push frame, the slotted transmission frame is in spacing fit with the swing rod, the second partition plate is slidably connected to the second partition plate, the second slotted push frame is in spacing fit with the swing rod, a second compression spring is connected between the second slotted push frame and the second partition plate.
6. The multi-stage proppant feeding device with the anti-overflow function for oil exploitation as recited in claim 5, further comprising an anti-overflow assembly, wherein the anti-overflow assembly is disposed on the guide frame, the anti-overflow assembly comprises a second pushing frame, a blocking frame, a third return spring, a cylinder with a screen, a U-shaped baffle and a flow guide tube, the second pushing frame is connected to the first slotted pushing frame, the blocking frame is slidably connected to the guide frame, the blocking frame contacts with the guide frame, the third return spring is connected between the guide frame and the blocking frame, the cylinder with the screen is connected to one side of the inner wall of the guide frame, the U-shaped baffle is connected to the first support frame, the U-shaped baffle is connected to the guide frame, and the flow guide tube is connected to the first support frame.
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| CN202110909782.0A CN113431548A (en) | 2021-08-09 | 2021-08-09 | Multi-stage proppant feeding device with anti-overflow function for oil exploitation |
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| CN202110909782.0A CN113431548A (en) | 2021-08-09 | 2021-08-09 | Multi-stage proppant feeding device with anti-overflow function for oil exploitation |
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Application publication date: 20210924 |