Vibration excitation dust-free type negative pressure feeding and mixing funnel

Abstract

The vibration excitation dust-free type negative pressure feeding and mixing hopper comprises a split vibration type support, a dust containing bin is placed on the split vibration type support, a soft flaring type guide baffle is arranged at an end opening of the dust containing bin, and the other end of the dust containing bin is downwards communicated with a conical discharging bin; the lower end opening of the conical discharging bin is connected with a pneumatic gate valve through a buffering flexible rubber pipe, the pneumatic gate valve is downwards communicated with a Venturi type feeding spray pipe, a dust collecting and receiving pipe is arranged on the Venturi type feeding spray pipe, a plurality of dust suction holes are formed in the side wall of the end, close to the guiding baffle, of the dust containing bin, and a filtering hole plate is arranged on each dust suction hole. Dust collection pipes penetrate through the dust collection holes, every two dust collection pipes are gathered to a symmetrical pipe, the other end of the symmetrical pipe is communicated with the first end of a rubber pipe, the other end of the rubber pipe is communicated with a dust collection material receiving pipe, and the problem of dust pollution in the feeding process is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of drilling fluids, and particularly relates to a vibration-excited dust-free negative-pressure feeding and mixing hopper. Background Art

[0002] In a low-pressure circulation system of drilling fluids, it is necessary to continuously add powders such as heavy powder, bentonite, and additives to a mud storage tank to uniformly mix them and form a water-based or oil-based drilling fluid system with certain properties for drilling activities in formations within a specific range. Except for some special additives such as heavy powder and additives, the most commonly used conventional materials at present are bentonite and the like. Generally, the most conventional is the standard ton bag material of about meters × meters. According to the usage amount of a conventional drilling rig, usually hundreds of tons of similar base materials are required for adding materials such as bentonite with the largest usage amount and mixing with water to form a drilling fluid with a certain density and certain specific properties. Since the ton bag specifications are generally of fixed size, reusable, and low in cost, they are still the most commonly used means for storing and transporting mud base materials such as bentonite in the drilling industry at present.

[0003] Since drilling operations are generally carried out in the wild, the materials in ton bags need to be added to the material conveying pipeline through a mixing hopper. Conventional mixing hoppers generally only have a small platform. During the feeding process of ton bag materials, a large amount of dust pollution will be caused, damaging and polluting the operators and the operation area. Operators need to take safety measures such as wearing dust-proof masks. In addition, due to the limitations of the outdoor storage conditions of ton bag materials, the powder often has high humidity during storage, or some materials themselves have poor fluidity, etc. During the feeding process, they cannot flow well into the mixing hopper. Although the current mixing hoppers all adopt the Venturi jet type and can generate a certain negative pressure inside the feeding pipe, once the materials accumulate and solidify in the feeding area of the mixing hopper during the feeding process, they cannot be adsorbed and mixed anymore, which further affects the feeding process inside the feeding pipe. It is very inconvenient to deal with such solidified accumulations on site, and thus the feeding efficiency is even lower. Summary of the Invention

[0004] The purpose of the present invention is to provide a vibration-excited dust-free negative-pressure feeding and mixing hopper to solve the problem of dust pollution during the feeding process.

[0005] The technical solution adopted by the present invention is an excitation dust-free negative pressure feeding and mixing funnel, which includes a split vibration type support. A dust material bin is placed on the split vibration type support. A soft flared guiding baffle is arranged at the port of the dust material bin. The other end of the dust material bin communicates downward with a conical feeding bin. The lower port of the conical feeding bin is connected with a pneumatic slide valve through a buffer flexible rubber tube. The pneumatic slide valve communicates downward with a Venturi type feeding nozzle. A dust collection receiving pipe is arranged on the Venturi type feeding nozzle. A plurality of dust suction holes are opened on the side wall of the dust material bin near the guiding baffle. A filter hole plate is arranged on each dust suction hole. Each dust suction hole penetrates through a dust collection pipe. The dust collection pipes are gathered in pairs to a symmetrical pipe. The other end of the symmetrical pipe communicates with the first end of a rubber tube. The other end of the rubber tube is communicated with the dust collection receiving pipe.

[0006] The features of the present invention also lie in:

[0007] The dust collection receiving pipe is obliquely arranged on the Venturi type feeding nozzle. The two ends of the Venturi type feeding nozzle are respectively a material / dust ejection outlet and a liquid / gas flow ejection inlet.

[0008] Two pneumatic worm wheel exciters are symmetrically fixed on the outer wall of the conical feeding bin.

[0009] The inside of the conical feeding bin adopts a uniformly distributed bulge design.

[0010] The split vibration type support includes an upper support unit and a lower support unit. The upper support unit and the lower support unit are connected by a rigid spring. The upper support unit is provided with a connecting seat. The lower support unit is provided with a connecting pile. The connecting seat and the connecting pile are connected by bolts.

[0011] A poking bag device is installed on the conical feeding bin.

[0012] The beneficial effects of the present invention are:

[0013] 1. The excitation dust-free negative pressure feeding and mixing funnel of the present invention is provided with a dust collection pipe, which can form a negative pressure adsorption environment during the feeding process and effectively reduce dust pollution;

[0014] 2. The excitation dust-free negative pressure feeding and mixing funnel of the present invention adopts a split vibration type support, which can maximize the reduction of the influence of residual materials on the feeding effect;

[0015] 3. The excitation dust-free negative pressure feeding and mixing funnel of the present invention adopts a double pneumatic worm wheel exciter and a pneumatic slide valve, which can increase the excitation force and provide a stable vibration mode, and can prevent the material from entering in advance and not being discharged during the feeding process, resulting in blockage;

[0016] 4. The conical feeding bin of the excitation dust-free negative pressure feeding and mixing funnel of the present invention adopts a uniformly distributed bulge type design, so that the material flows into the Venturi type feeding nozzle evenly and prevents the material from being blocked. Description of the Drawings

[0017] Figure 1 is a schematic structural view of the vibration-excited dust-free negative-pressure feeding and mixing funnel of the present invention;

[0018] Figure 2 is Figure 1 the right view of

[0019] Figure 3 is the top view of the dust material bin in the vibration-excited dust-free negative-pressure feeding and mixing funnel of the present invention;

[0020] Figure 4 is a schematic structural view of the bag punching device installed in the vibration-excited dust-free negative-pressure feeding and mixing funnel of the present invention;

[0021] Figure 5 is a schematic structural view of the rigid spring in the vibration-excited dust-free negative-pressure feeding and mixing funnel of the present invention.

[0022] Among them, 1. guiding baffle, 2. dust collection pipe, 3. dust material bin, 4. split vibration type support, 5. rubber tube, 6. rigid spring, 7. conical feeding bin, 8. dust collection receiving pipe, 9. material / dust injection outlet, 10. liquid / gas flow injection inlet, 11. Venturi type feeding nozzle, 12. pneumatic slide valve, 13. buffer flexible rubber tube, 14. connecting pile, 15. connecting seat, 16. pneumatic worm gear vibration exciter, 17. bag punching device. Detailed implementation manners

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0024] The vibration-excited dust-free negative-pressure feeding and mixing funnel of the present invention, as Figure 1 shown, includes a split vibration type support 4. The split vibration type support 4 is divided into an upper support unit and a lower support unit. The upper support unit and the lower support unit are connected by a rigid spring 6, as Figure 5As shown, a connecting seat 15 is provided on the upper unit of the support, and a connecting pile 14 is provided on the lower unit of the support. The connecting seat 15 and the connecting pile 14 are fixed by bolts. The dust material bin 3 is installed on the upper unit of the support. A soft flared guiding baffle 1 is provided at the port of the dust material bin 3. The guiding baffle 1 and the dust material bin 3 are integrally designed. A conical feeding bin 7 is connected to the lower end of the dust material bin 3. The inside of the conical feeding bin 7 adopts a uniformly distributed bulge design. The lower port of the conical feeding bin 7 is connected to a Venturi-type feeding spray pipe 11 through a buffer flexible rubber tube 13. An air-operated slide valve 12 is provided above the Venturi-type feeding spray pipe 11. The Venturi-type feeding spray pipe 11 is also provided with a dust collection receiving pipe 8. The dust collection receiving pipe 8 is obliquely placed on the Venturi-type feeding spray pipe 11. The two ends of the Venturi-type feeding spray pipe 11 are respectively a liquid / gas injection inlet 10 and a material / dust injection outlet 9. Four dust suction holes are provided in the upper part of the dust material bin 3. Corresponding filter orifice plates are provided on the four dust suction holes. As Figure 3 shown, a dust collection pipe 2 is connected to each dust suction hole. The dust collection pipes 2 are gathered in pairs onto a symmetric pipe. The symmetric pipe is connected to the dust collection receiving pipe 8 through a rubber tube 5. As Figure 2 shown, two pneumatic worm vibrators 16 are symmetrically fixed on the left and right on the outer wall of the conical feeding bin 7. A poking bag device 17 can also be installed inside the conical feeding bin 7. As Figure 4 shown.

[0025] A soft flared guiding baffle 1 is provided at the port of the dust material bin 3 to facilitate the guiding of the ton bag into a certain gap; four dust suction holes are provided in the upper part of the dust material bin 3, and corresponding filter hole plates are provided on the four dust suction holes. A dust collection pipe 2 is connected to each dust suction hole. The dust collection pipes 2 are gathered in pairs to the symmetrical pipe, and the symmetrical pipe is connected to the dust collection receiving pipe 8 through a rubber hose 5. Since the Venturi-type feeding nozzle 11 will generate negative pressure adsorption on the dust collection receiving pipe 8 when spraying solid-liquid mixed materials or directly connecting to the gas source, local negative pressure for adsorbing dust will be generated in the dust collection pipe 2, and the overflowing or flying dust in the dust material bin 3 can be effectively collected. At the same time, due to the self-weight of the powder material, most of the powder materials will enter the Venturi-type feeding nozzle 11 along with the conical feeding bin 7 by self-weight, effectively reducing dust pollution; the conical feeding bin 7 adopts a uniformly distributed bulge design, so that the pressure of the powder material is asymmetrically dispersed when flowing in the conical feeding bin 7, avoiding local accumulation and blockage, and making it easy for the material to reach the lower feeding port; the upper part of the Venturi-type feeding nozzle 11 adopts a pneumatic slide valve 12 to avoid the blocking effect of the conventional butterfly valve plate on the powder material; a split vibrating support 4 is adopted, which is fixed by bolts of the connecting seat 15 and the connecting pile 14, meeting the fixing requirements during daily transportation and packaging. In the working state, only the bolts need to be removed to carry out the vibration feeding operation. A rigid spring 6 is used to connect the upper and lower units of the split vibrating support 4, so that in the process of vibration feeding of the split vibrating support 4, the upper half keeps vibrating and feeding, while the lower half including the liquid / gas flow injection inlet 10 and the material / dust injection outlet 9 and the corresponding connecting pipelines and support accessories are not affected by the vibration, ensuring the stability of the system pipeline connection and the feeding effect of the vibration of the upper half of the split vibrating support 4. The rigid spring 6 is designed with a one-time installation connection method of tightly sleeving the upper and lower long sleeves, and a modular detachable scheme is adopted to ensure that it can be removed or quickly replaced on site, such as Figure 5 shown; two pneumatic worm exciters 16 are symmetrically fixed on the outer wall of the conical feeding bin 7. In the working state of the double pneumatic worm exciters 16, when the conical feeding bin 7 is subjected to their resultant force, it generates up and down linear vibration, or to a certain extent, left and right vibration is superimposed. At the same time, the rigid spring 6 and the pneumatic worm exciter 16 act together to increase the amplitude, making the conical feeding bin 7 feed better, preventing the powder material with poor fluidity from not falling and feeding, and ensuring the smooth progress of feeding; the rubber hose 5 and the buffer flexible rubber hose 13 can well control the up and down linear or slightly left and right small amplitude high-frequency vibration forces generated by the double pneumatic worm exciters 16 within a certain range; the rubber hose 5 and the buffer flexible rubber hose 13 both implement the flexible vibration design of the split vibrating support 4; the dust collection receiving pipe 8 is inclined relative to the Venturi-type feeding nozzle 11, which can not only make the accumulated dust fall into the Venturi-type feeding nozzle 11 along the trend, but also correspondingly improve the effective discharge effect along with the Venturi-type feeding nozzle 11; for the one-time ton bag material, it can also be directly fed through the installation of a bag punching device 17 on the conical feeding bin 7, and the bag punching device 17 can be directly removed.

[0026] The vibration-excited dust-free negative-pressure feeding and mixing hopper of the present invention, when starting the operation, usually connects the discharge port of the mixing pump group to the liquid / gas injection inlet 10, and the material / dust injection outlet 9 is connected to the slurry preparation pipeline of the return drilling fluid storage tank. Remove the bolts on the connecting seat 15 and the connecting pile 14 of the split vibration type support 4, open the pneumatic worm vibration exciter 16 and the pneumatic slide valve 12. The hoist lifts and opens the ton bag material at the designated position through the guiding baffle 1, and the material then enters the conical feeding bin 7. Inside the conical feeding bin 7, under the guidance of the flow path planning, the material is asymmetrically extruded and divided into the lower port of the conical feeding bin 7 according to its respective flow channels. At the same time, under the action of the pneumatic worm vibration exciter 16, it detaches from the inner wall of the conical feeding bin 7 and enters the Venturi-type feeding nozzle 11, and is inhaled and discharged along with the negative-pressure air flow generated by the injection fluid. The flying powder generated during this process will be continuously absorbed by the dust collecting pipe 2 in the dust storage bin 3, and reach the Venturi-type feeding nozzle 11 along the pipeline, and be discharged to the next process together with the material. This device has a low manufacturing cost, is convenient for maintenance and use, can greatly adsorb the dust during the feeding process of the ton bag material, and reduce the harm to the operator's body or the pollution of the working environment.

[0027] Example 1

[0028] The vibration-excited dust-free negative-pressure feeding and mixing hopper includes a split vibration type support 4, on which a dust storage bin 3 is placed. At the port of the dust storage bin 3, a soft flared guiding baffle 1 is provided. The other end of the dust storage bin 3 communicates downward with a conical feeding bin 7. The lower port of the conical feeding bin 7 is connected to a pneumatic slide valve 12 through a buffer flexible rubber tube 13. The pneumatic slide valve 12 communicates downward with a Venturi-type feeding nozzle 11. A dust collecting receiving pipe 8 is provided on the Venturi-type feeding nozzle 11. A plurality of dust suction holes are opened on the side wall of the dust storage bin 3 near the guiding baffle 1. A filter hole plate is provided on each dust suction hole, and each dust suction hole penetrates through a dust collecting pipe 2. The dust collecting pipes 2 are gathered in pairs to a symmetric pipe, and the other end of the symmetric pipe communicates with the first end of a rubber tube 5. The other end of the rubber tube 5 is connected to the dust collecting receiving pipe 8.

[0029] Example 2

[0030] Vibrating dust-free negative pressure feeding and mixing hopper, comprising a split vibrating support 4, on which a dust storage bin 3 is placed. At the port of the dust storage bin 3, a soft flared guiding baffle 1 is provided. The other end of the dust storage bin 3 communicates downward with a conical feeding bin 7. The lower port of the conical feeding bin 7 is connected to a pneumatic slide valve 12 through a buffer flexible rubber tube 13. The pneumatic slide valve 12 communicates downward with a Venturi-type feeding nozzle 11. A dust collection receiving pipe 8 is provided on the Venturi-type feeding nozzle 11. A plurality of dust suction holes are opened on the side wall of the dust storage bin 3 near the guiding baffle 1. A filter hole plate is provided on each dust suction hole, and a dust collection pipe 2 passes through each dust suction hole. The dust collection pipes 2 are gathered in pairs to a symmetric pipe, and the other end of the symmetric pipe is connected to the first end of a rubber tube 5. The other end of the rubber tube 5 is connected to the dust collection receiving pipe 8. The dust collection receiving pipe 8 is obliquely arranged on the Venturi-type feeding nozzle 11. The two ends of the Venturi-type feeding nozzle 11 are respectively a material / dust ejection outlet 9 and a liquid / gas flow injection inlet 10. Two pneumatic worm wheel exciters 16 are symmetrically fixed on the outer wall of the conical feeding bin 7, and the interior of the conical feeding bin 7 adopts a uniformly distributed bulge design.

[0031] Example 3

[0032] Vibrating dust-free negative pressure feeding and mixing hopper, comprising a split vibrating support 4, on which a dust storage bin 3 is placed. At the port of the dust storage bin 3, a soft flared guiding baffle 1 is provided. The other end of the dust storage bin 3 communicates downward with a conical feeding bin 7. The lower port of the conical feeding bin 7 is connected to a pneumatic slide valve 12 through a buffer flexible rubber tube 13. The pneumatic slide valve 12 communicates downward with a Venturi-type feeding nozzle 11. A dust collection receiving pipe 8 is provided on the Venturi-type feeding nozzle 11. A plurality of dust suction holes are opened on the side wall of the dust storage bin 3 near the guiding baffle 1. A filter hole plate is provided on each dust suction hole, and a dust collection pipe 2 passes through each dust suction hole. The dust collection pipes 2 are gathered in pairs to a symmetric pipe, and the other end of the symmetric pipe is connected to the first end of a rubber tube 5. The other end of the rubber tube 5 is connected to the dust collection receiving pipe 8. The dust collection receiving pipe 8 is obliquely arranged on the Venturi-type feeding nozzle 11. The two ends of the Venturi-type feeding nozzle 11 are respectively a material / dust ejection outlet 9 and a liquid / gas flow injection inlet 10. Two pneumatic worm wheel exciters 16 are symmetrically fixed on the outer wall of the conical feeding bin 7, and the interior of the conical feeding bin 7 adopts a uniformly distributed bulge design. The split vibrating support 4 comprises an upper support unit and a lower support unit, which are connected by a rigid spring 6. The upper support unit is provided with a connecting seat 15, and the lower support unit is provided with a connecting pile 14. The connecting seat 15 and the connecting pile 14 are connected by bolts. A bag punching device 17 is installed on the conical feeding bin 7.

Claims

1. Vibrating dust-free negative pressure feeding and mixing hopper, Characterized in that, It includes a split vibrating support (4), on which a dust storage bin (3) is placed. At the port of the dust storage bin (3), there is a soft flared guiding baffle (1). The other end of the dust storage bin (3) communicates downward with a conical feeding bin (7). The lower port of the conical feeding bin (7) is connected to a pneumatic slide valve (12) through a buffer flexible rubber tube (13). The pneumatic slide valve (12) communicates downward with a Venturi-type feeding nozzle (11). On the Venturi-type feeding nozzle (11), there is a dust collection receiving pipe (8). On the side wall of the dust storage bin (3) near the guiding baffle (1), there are a plurality of dust suction holes. On each dust suction hole, there is a filter hole plate. Each dust suction hole penetrates through a dust collection pipe (2). The dust collection pipes (2) are gathered in pairs to a symmetric pipe. The other end of the symmetric pipe communicates with the first end of a rubber tube (5). The other end of the rubber tube (5) communicates with the dust collection receiving pipe (8).

2. The vibrating dust-free negative pressure feeding and mixing hopper according to claim 1, Characterized in that, The dust collection receiving pipe (8) is obliquely arranged on the Venturi-type feeding nozzle (11). The two ends of the Venturi-type feeding nozzle (11) are respectively a material / dust injection outlet (9) and a liquid / gas flow injection inlet (10).

3. The vibrating dust-free negative pressure feeding and mixing hopper according to claim 1, Characterized in that, On the outer wall of the conical feeding bin (7), two pneumatic worm vibrators (16) are symmetrically fixed.

4. The vibrating dust-free negative pressure feeding and mixing hopper according to claim 1 or 3, Characterized in that, The inside of the conical feeding bin (7) adopts a uniformly distributed bulging design.

5. The vibrating dust-free negative pressure feeding and mixing hopper according to claim 4, Characterized in that, The split vibrating support (4) includes an upper support unit and a lower support unit. The upper support unit and the lower support unit are connected by a rigid spring (6). The upper support unit is provided with a connecting seat (15). The lower support unit is provided with a connecting pile (14). The connecting seat (15) and the connecting pile (14) are connected by bolts.

6. The vibrating dust-free negative pressure feeding and mixing hopper according to claim 4, Characterized in that, A bag punching device (17) is installed on the conical feeding bin (7).

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