A fiber filling device and a filling method

Abstract

The application discloses a kind of fibre filling device, including platform and installation on platform conveying mechanism, breaker, puffed aggregate bin, feeding system and humidification discharge port.Conveying structure includes feeding port and conveyer belt, and protective shell is arranged outside conveyer belt;Breaker includes bin body, beating blade, static blade and driving mechanism, and static blade is arranged on the inner wall of bin body, and shaft is arranged on beating blade, and beating blade is rotatably connected with bin body by shaft, and driving mechanism drives beating blade to move.Puffed aggregate bin includes separating device and hopper, hopper is arranged below frame body, vibration motor is arranged on hopper, and shock absorbing leg is arranged on hopper.The device is additionally provided with protective shell on conveyer belt to prevent the phenomenon of flying everywhere during fibre conveying.Humidification discharge port changes dry fibre transported in conveying pipe into wet fibre group absorbing moisture, enhances the affinity of fibre and mortar, and avoids the flying of fibre in humidification discharge port.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coalbed methane fracturing, in particular to a fiber injection device and an injection method. BACKGROUND

[0002] Coalbed methane is a gas resource associated with coal, which refers to hydrocarbon gas stored in coal seams, mainly composed of methane, and belongs to unconventional natural gas. The calorific value of coalbed methane is 1-4 times higher than that of general coal, and it is very clean after combustion, almost without any waste gas, which is an excellent industrial, chemical, power generation and residential fuel. Coal seam fracturing is the core and key of coalbed methane development and utilization. Adding fiber during coalbed methane fracturing can enhance the sand-carrying capacity of fracturing fluid, effectively prevent proppant from flowing back and returning in the reservoir fracture network, and achieve the effect of plugging old fractures and opening new fractures.

[0003] In the invention patent with publication number CN103640897A (hereinafter referred to as "prior art 1"), a fiber material conveying device is disclosed. Prior art 1 uses a screw to quantitatively convey fiber, air force to blow and convey fiber, and a cyclone separator to separate gas and material. The air blowing, conveying and separating method must use a special equipment crane to assist the hoisting of the cyclone separator, and the fiber is easy to suspend in the fracturing fluid with viscosity and difficult to quickly and uniformly mix with the fracturing fluid. The blown dry fiber is easy to fly everywhere.

[0004] In the utility model patent with publication number CN209212225U (hereinafter referred to as "prior art 2"), a fiber injection device is disclosed. Prior art 2 does not provide a device for processing fiber, so it needs to additionally add a special fiber processing device or use a large-diameter, high-power mixing device to mix fiber and fracturing fluid. The final product (the mixture of fracturing fluid and fiber) obtained by such treatment has poor effect and reduces the overall sand-carrying capacity of the product.

[0005] In summary, the current fiber injection device still has some problems and cannot meet the needs of coalbed methane fracturing construction.

[0006] Invention patent content

[0007] Therefore, the present application provides a fiber injection device to solve the problems of dry fiber flying everywhere and not being finely processed in the prior art.

[0008] The technical solution of the present application is as follows:

[0009] The application discloses a kind of fiber filling device, including platform and installation on platform conveying mechanism, crusher, puffed aggregate bin, feeding system and humidification discharge port;Crusher is arranged below the outlet of conveying mechanism, puffed aggregate bin is arranged below the crusher, feeding system is connected with puffed aggregate bin, and feeding system is connected with humidification discharge port.

[0010] Conveying structure includes feeding port and conveyor belt, and a protective shell is arranged outside the conveyor belt;The crusher includes a bin body, a striking blade, a stationary blade, and a drive mechanism, the stationary blade is arranged on the inner wall of the bin body, a rotating shaft is arranged on the striking blade, the striking blade is rotatably connected to the bin body by the rotating shaft, and the drive mechanism drives the striking blade to move.

[0011] The puffed aggregate bin includes a separation device and a hopper, the separation device includes a vibration motor, a frame, and a sieve bed, the hopper is arranged below the frame, the vibration motor is arranged on the hopper, and a shock-absorbing leg is arranged on the hopper.

[0012] In a preferred technical solution, the feeding system includes a fan, a mixing spray gun, a gasification device, and a diffuser.

[0013] In a preferred technical solution, the feeding system is connected to the humidification discharge port through a diffusion pipe and a conveying pipe, the inlet pipe diameter of the diffusion pipe is smaller than the outlet pipe diameter, the inlet of the diffusion pipe is connected to the feeding system, and the outlet of the diffusion pipe is connected to the conveying pipe.

[0014] In a preferred technical solution, the hopper is in the shape of an inverted quadrangular pyramid.

[0015] In a preferred technical solution, the humidification discharge port includes an air inlet pipe, a core pipe, and a horn-shaped outlet, and an atomizing nozzle is arranged on the core pipe.

[0016] In a preferred technical solution, a hoisting mechanism is arranged beside the feeding system, the hoisting mechanism includes a stand, a hoisting arm, a hydraulic telescopic rod, and a pulley, the stand is rotatably connected to the platform, the stand is rotatably connected to the hoisting arm, one end of the hydraulic telescopic rod is rotatably connected to the stand, the other end of the hydraulic telescopic rod is rotatably connected to the hoisting arm, and the pulley is rotatably connected to the end of the hoisting arm.

[0017] In a preferred technical solution, the crusher is connected to the puffed aggregate bin through a sealing soft material, and the hopper is connected to the feeding system through an airtight soft material.

[0018] In a preferred technical solution, the platform includes a main beam, a cross beam, and a cover plate.

[0019] A method for filling fibers, specifically including the following steps:

[0020] The fibers are placed into the conveyor belt from the feeding port, and the conveyor belt conveys the fibers into the crusher.

[0021] The crusher disperses the fibers into fiber groups with a diameter of 50 mm or less, and the fiber groups fall into the puffing aggregate bin;

[0022] After the fiber groups are puffed in the puffing aggregate bin, they enter the feeding system, which transports the fiber groups to the wetting material outlet through the conveying pipe;

[0023] After the fiber groups absorb moisture in the wetting material outlet, they fall into the sand mixer.

[0024] The beneficial effects of the present invention are:

[0025] 1. The protective shell added to the conveyor belt prevents the fibers from flying everywhere during the fiber conveying process.

[0026] 2. The device is provided with a crusher and a puffing aggregate bin for further processing of the fibers. The combination of the beating blade and the stationary blade in the crusher changes the fibers processed by the crusher into fiber groups with a diameter of 50 mm or less, increasing the contact area of the fibers during puffing treatment in the puffing aggregate bin and enhancing the puffing effect of the fibers.

[0027] 3. The wetting material outlet changes the dry fibers transported in the conveying pipe into wet fiber groups that absorb moisture, enhancing the affinity of the fibers and the mortar and avoiding the flying of the fibers in the wetting material outlet. BRIEF DESCRIPTION OF DRAWINGS

[0028] The attached Figure 1 is a structural schematic diagram of the present invention patent;

[0029] The attached Figure 2 is one of the side views of the present invention patent;

[0030] The attached Figure 3 is the second side view of the present invention patent;

[0031] The attached Figure 4 is a top view of the present invention patent;

[0032] The attached Figure 5 is a structural schematic diagram of the puffing aggregate bin of the present invention patent;

[0033] The attached Figure 6 is a structural schematic diagram of the crusher of the present invention patent;

[0034] The attached Figure 7 is a structural schematic diagram of the platform of the present invention patent.

[0035] In the figure: 100-platform, 101-main beam, 102-cross beam, 103-cover plate, 200-conveying mechanism, 201-feeding port, 202-conveying belt, 203-protection shell, 300-crusher, 301-warehouse body, 302-hitting blade, 303-driving mechanism, 304-stationary blade, 400-puffed aggregate warehouse, 401-vibration motor, 402-sieve bed, 403-frame body, 404-hopper, 405-damping leg, 500-feeding system, 600-humidified material outlet, 601-inlet pipe, 602-core pipe, 603-horn mouth, 604-atomizing nozzle, 700-conveying pipe, 701-diffusion pipe, 800-stand column, 801-hanging arm, 802-hydraulic telescopic rod, 803-pulley. DETAILED DESCRIPTION

[0036] The specific embodiments of the present application will be described below in detail with reference to the accompanying drawings of the patent embodiments of the present application:

[0037] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the patent embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0038] In addition, the description of "first", "second", etc. in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly including at least one of the features.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Example one

[0041] As Figure 1 , Figure 2 , Figure 3 , Figure 4As shown in the figure, a fiber filling device includes a platform 100 and a conveying mechanism 200, a crusher 300, an expansion aggregate bin 400, a feeding system 500 and a humidifying discharge port 600 installed on the platform 100; the crusher 300 is arranged below the outlet of the conveying mechanism 200, the expansion aggregate bin 400 is arranged below the crusher 300, the feeding system 500 is connected with the expansion aggregate bin 400, and the feeding system 500 is connected with the humidifying discharge port 600.

[0042] The conveying structure includes a feeding port 201 and a transmission belt 202, and a protective shell 203 is arranged outside the transmission belt 202; the crusher 300 (as shown in the figure) includes a bin body 301, a beating blade 302, a stationary blade and a driving mechanism 303, the stationary blade is arranged on the inner wall of the bin body 301, the beating blade 302 is provided with a rotating shaft, the beating blade 302 is rotationally connected with the bin body 301 through the rotating shaft, and the driving mechanism 303 drives the beating blade 302 to move (the fiber processed by the crusher 300 becomes a fiber group with a diameter of 50 mm or below). Figure 6

[0043] The expansion aggregate bin 400 (as shown in the figure) includes a separation device and a hopper 404, the separation device includes a vibration motor 401, a frame 403 and a screen bed 402, the screen bed 402 is made of an elastic material such as rubber, plastic or nylon material, the screen bed 402 is provided with two groups of warp and weft directions, and the two groups of screen beds 402 are arranged in the frame 403 in a spaced manner; the hopper 404 is arranged below the frame 403, the vibration motor 401 is arranged on the hopper 404, the hopper 404 is provided with a shock absorbing leg 405, the shock absorbing leg 405 is provided with a spring, and the lower end of the shock absorbing leg 405 is connected with the platform 100 (to reduce the influence of the vibration generated by the vibration motor 401 on other components when the vibration motor 401 works on the hopper 404). Figure 5

[0044] ​​The working principle of the device is as follows: after the device is transported to the working site, it is unfolded at the site where it is needed and fixed to the bottom surface through the platform, raw materials (fibers) are placed on the conveying belt 202 from the feeding port 201 after being disintegrated, the protective shell 203 prevents the fibers from flying during the conveying process, the conveying belt 202 conveys the fibers to the crusher 300, the fibers become fiber groups with a diameter of 50 mm or below (the purpose is to increase the swelling area of the fibers) after being processed by the combination of the beating blade 302 and the stationary blade 304 in the crusher 300. The fiber groups enter the swelling aggregate bin 400 after coming out of the crusher 300, and swell after the joint action of the vibration motor 401 and the sieve bed 402 in the swelling aggregate bin 400 and fall into the hopper 404. The hopper 404 is connected with the feeding system 500 below, and the fibers are blown and gasified in the feeding system 500 and then enter the humidifying discharge port 600. The fibers absorb moisture in the humidifying discharge port 600 and become water-containing fiber groups with a density greater than air, which fall into the sand mixer below the humidifying discharge port 600. Since the fiber groups contain water, they have strong affinity with the mortar in the sand mixer, avoiding the flying of the fibers.

[0045] Example Two

[0046] In this embodiment, as shown in Figure 2 、 Figure 3 , the feeding system 500 includes a fan, a mixing spray gun, a gasification device, and a diffuser, and the mixing spray gun includes an adjusting valve, a disc check valve, a movable air pipe, and a nozzle. The feeding system 500 is connected with the humidifying discharge port 600 through a diffusion pipe 701 and a conveying pipe 700, the inlet pipe diameter of the diffusion pipe 701 is smaller than the outlet pipe diameter, the inlet of the diffusion pipe 701 is connected with the feeding system 500, and the outlet of the diffusion pipe 701 is connected with the conveying pipe 700.

[0047] The low-pressure air blown out by the fan is sprayed out of the nozzle of the mixing spray gun to form a high-speed airflow, so that the fibers falling between the nozzle and the diffuser are blown away by the high-speed airflow, and under the gasification effect of the gasification device below, the fibers are in a floating state in the device. The fibers are sent into the diffusion pipe 701 under the action of the high-speed airflow, the diffusion pipe 701 can convert kinetic energy into static pressure energy, increase the flow speed of the fibers at the outlet of the diffusion pipe 701, and make the fibers flow quickly in the conveying pipe 700, thereby shortening the conveying time of the materials (fibers).

[0048] Example Three

[0049] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3As shown, the hopper 404 is a reverse four-pyramid, and the four slopes of the reverse four-pyramid can make the fibers falling into the hopper 404 fall along the slopes under the action of gravity to avoid the phenomenon of fiber aggregation. The vibration motor 401 is arranged on the hopper 404, and the vibration transmitted by the vibration motor 401 to the slopes of the hopper 404 can make the fibers falling on the slopes jump on the slopes under the action of vibration, thereby accelerating the falling speed of the fibers.

[0050] Embodiment four

[0051] In this embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 The humidifying material outlet 600 includes an air inlet pipe 601, a core pipe 602, and a horn mouth 603, and the core pipe 602 is provided with atomizing nozzles 604. The atomizing nozzles 604 are arranged in the circumferential direction and the vertical direction of the core pipe 602, and the atomizing nozzles 604 are inclined downward.

[0052] The atomizing nozzles 604 are connected with water pipes for supplying water to the atomizing nozzles 604. The atomizing nozzles 604 atomize the water flow in the core pipe 602 to form a clockwise downward cyclone, and a negative pressure is formed at the upper part of the cyclone to form a suction effect on the fibers in the air inlet pipe 601. The fibers sucked into the cyclone absorb water vapor to form a water-absorbing fiber group with a weight greater than air. The water-absorbing fiber group enters the horn mouth under the action of the centrifugal force of the cyclone, and then is injected into the mortar in the mortar mixer along the tangent direction of the downward inclination. Since the fiber group carries water, the affinity with the mortar is enhanced, and the flying phenomenon is avoided.

[0053] Embodiment five

[0054] In this embodiment, as shown in Figure 1 A hoisting mechanism is arranged beside the feeding system 500, and the hoisting mechanism includes a stand 800, a hoist arm 801, a hydraulic telescopic rod 802, and a pulley 803. The stand 800 is rotationally connected with the platform 100, the stand 800 is rotationally connected with the hoist arm 801, one end of the hydraulic telescopic rod 802 is rotationally connected with the stand 800, the other end of the hydraulic telescopic rod 802 is rotationally connected with the hoist arm 801, and the pulley 803 is rotationally connected with the end of the hoist arm 801.

[0055] During construction, the hoisting mechanism is used to hoist and move the humidifying material outlet 600 and the conveying pipe 700 connected with the humidifying material outlet 600 to a specified position. The load of the hoisting mechanism is greater than 250 kg, and the hoisting mechanism is provided with an independent operation station and an operation table. The working radius of the hoisting mechanism is greater than 3.5 meters, and the maximum hoisting height is 4.5 meters. The operation of the hoisting mechanism saves the time for manually carrying the humidifying material outlet 600, and accelerates the operation speed.

[0056] Embodiment six

[0057] In the embodiment, as shown in Figure 2 , Figure 3 The crusher 300 is connected with the puffing aggregate bin 400 by a sealing soft material, and the hopper bin 404 is connected with the feeding system 500 by an air-tight soft material. The air-tight soft material can be polytetrafluoroethylene material, which has good heat resistance, moisture resistance and water resistance, can adapt to different use environments, and can ensure the air-tightness of the connecting part and prevent the fibers from leaking out of the device.

[0058] Embodiment Seven

[0059] In the embodiment, as shown in Figure 7 The platform 100 is composed of the main beam 101, the cross beam 102 and the cover plate 103. In order to ensure that the platform 100 has good supporting effect, the main beam 101 can be selected from 16 channel steel, the cross beam 102 can be selected from 10 channel steel, and the cover plate 103 is made of patterned steel plate with a thickness of 3-5 mm. The main beam 101, the cross beam 102 and the cover plate 103 are welded together. The use of patterned steel plate can not only meet the strength required for supporting, but also the patterns on the surface of the patterned steel plate can play a role in preventing slipping and preventing the operator from falling down by accident in the case that there is water on the surface of the steel plate.

[0060] Embodiment Eight

[0061] A fiber filling method, specifically comprising the following steps:

[0062] The fibers are placed into the transmission belt 202 from the feeding port 201, and the transmission belt 202 delivers the fibers into the crusher 300;

[0063] The crusher 300 scatters the fibers into fiber groups with a diameter of 50 mm or below, and the fiber groups fall into the puffing aggregate bin 400;

[0064] After the fiber groups are puffed in the puffing aggregate bin 400, they enter the feeding system 500, and the feeding system 500 delivers the fiber groups to the humidified material outlet 600 through the delivery pipe 700;

[0065] After the fiber groups absorb moisture in the humidified material outlet 600, they fall into the sand mixer.

[0066] The above-described specific embodiments further illustrate the technical solutions, problems solved and beneficial effects of the present patent, and it should be noted that the above-described specific embodiments are only examples of the present patent and are not intended to limit the present patent. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present patent should be included in the protection scope of the present patent.

Claims

1. A fiber filling device characterized by: The platform (100) comprises a conveying mechanism (200), a crusher (300), an expanded aggregate bin (400), a feeding system (500) and a humidifying discharge port (600) which are installed on the platform (100); the crusher (300) is arranged below the outlet of the conveying mechanism (200), the expanded aggregate bin (400) is arranged below the crusher (300), the feeding system (500) is connected with the expanded aggregate bin (400), and the feeding system (500) is connected with the humidifying discharge port (600); The conveying mechanism comprises a feeding port (201) and a transmission belt (202), and a protective shell (203) is arranged outside the transmission belt (202); the crusher (300) comprises a bin body (301), a beating blade (302), a stationary blade (304) and a driving mechanism (303), the stationary blade (304) is arranged on the inner wall of the bin body (301), the beating blade (302) is provided with a rotating shaft, the beating blade (302) is rotationally connected with the bin body (301) through the rotating shaft, and the driving mechanism (303) drives the beating blade (302) to move; The expanded aggregate bin (400) comprises a separating device and a hopper (404), and the separating device comprises a vibration motor (401), a frame (403) and a sieve bed (402); The hopper (404) is arranged below the frame (403), the vibration motor (401) is arranged on the hopper (404), and the hopper (404) is provided with a shock absorbing leg (405).

2. A fibre charging device according to claim 1, characterised in that: The feeding system (500) comprises a fan, a mixing spray gun, a gasification device and an expander.

3. A fiber filling device according to claim 1, wherein: The feeding system (500) is connected with the humidifying discharge port (600) through a diffusion pipe (701) and a conveying pipe (700), the inlet pipe diameter of the diffusion pipe (701) is smaller than the outlet pipe diameter, the inlet of the diffusion pipe (701) is connected with the feeding system (500), and the outlet of the diffusion pipe (701) is connected with the conveying pipe (700).

4. A fiber filling device according to claim 1, wherein: The hopper (404) is in the shape of an inverted quadrangular pyramid.

5. A fiber filling device according to claim 1, wherein: The humidifying discharge port (600) comprises an air inlet pipe (601), a core pipe (602) and a horn mouth (603), and the core pipe (602) is provided with an atomizing nozzle (604).

6. A fiber filling device according to claim 1, wherein: A hoisting mechanism is arranged beside the feeding system (500), and the hoisting mechanism comprises a stand column (800), a hoisting arm (801), a hydraulic telescopic rod (802) and a pulley (803); the stand column (800) is rotationally connected with the platform (100), the stand column (800) is rotationally connected with the hoisting arm (801), one end of the hydraulic telescopic rod (802) is rotationally connected with the stand column (800), the other end of the hydraulic telescopic rod (802) is rotationally connected with the hoisting arm (801), and the pulley (803) is rotationally connected with the end of the hoisting arm (801).

7. A fiber filling device as defined in claim 1, wherein: The crusher (300) is connected with the expanded aggregate bin (400) through a sealing soft material, and the hopper (404) is connected with the feeding system (500) through an airtight soft material.

8. A fiber filling device according to claim 1, wherein: The platform (100) comprises a main beam (101), a cross beam (102) and a cover plate (103).

9. A method of filling a fiber, characterized by: The method adopts the fiber filling device of any one of claims 1-8, and specifically comprises the following steps: The fibers are put into the transmission belt (202) from the feeding port (201), and the transmission belt (202) transports the fibers into the crusher (300); The crusher (300) scatters the fibers into fiber groups with a diameter of 50 mm or less, and the fiber groups fall into the puffing aggregate bin (400); After the fiber groups are puffed in the puffing aggregate bin (400), the fiber groups enter the feeding system (500), and the feeding system (500) transports the fiber groups to the humidified material outlet (600) through the conveying pipe (700); After the fiber groups absorb moisture in the humidified material outlet (600), the fiber groups fall into the sand mixer.

Images