阅读说明：本技术 一种钻井废弃物研磨制造回注泥浆的装置 (Device for grinding and manufacturing reinjection slurry by drilling waste ) 是由 *** 于 2019-10-25 设计创作，主要内容包括：本发明实施例公开了一种钻井废弃物研磨制造回注泥浆的装置,包括废弃物回收罐、研磨罐、暂存箱和回注泵,废弃物回收罐的出口与研磨罐相连,研磨罐上连接有主水管路,暂存箱的出口与回注泵相连,在研磨罐与暂存箱之间设有第一振动筛和第二碎石机,送入到研磨罐内的固相和液相废弃物先送入到第一振动筛进行筛选,无法从第一振动筛内下落的废弃物送入到第二碎石机内进行打碎,从第一振动筛内下落的废弃物送入到研磨罐内进行研磨,从研磨罐内研磨完成的固相废弃物连同液相废弃物通过第二振动筛筛分,筛下的废弃物送入到暂存箱内,未通过的继续送入到第二研磨罐中研磨。具有对废弃物进行充分的打碎,减少不可泵送的岩屑量的技术效果。(The embodiment of the invention discloses a device for grinding drilling waste to manufacture reinjection slurry, which comprises a waste recovery tank, a grinding tank, a temporary storage tank and a reinjection pump, wherein an outlet of the waste recovery tank is connected with the grinding tank, the grinding tank is connected with a main water pipeline, an outlet of the temporary storage tank is connected with the reinjection pump, be equipped with first shale shaker and second stone crusher between grinding pot and temporary storage case, send into the solid phase in the grinding pot and the liquid phase discarded object and send into first shale shaker earlier and screen, the discarded object that can't fall in the first shale shaker sends into the second stone crusher and smashes, the discarded object that falls in the first shale shaker sends into the grinding pot and grinds, the solid phase discarded object that grinds the completion in the grinding pot passes through the second shale shaker with the liquid phase discarded object and sieves, the discarded object that sieves is sent into temporary storage incasement, the continuation that does not pass sends into in the second grinding pot and grinds. The method has the technical effects of fully crushing the waste and reducing the quantity of non-pumpable rock debris.)

1. A device for grinding and manufacturing reinjection slurry by drilling wastes comprises a waste recovery tank, a grinding tank, a temporary storage tank and a reinjection pump, wherein an outlet of the waste recovery tank is connected with the grinding tank, a main water pipeline is connected onto the grinding tank, and an outlet of the temporary storage tank is connected with the reinjection pump, and the device is characterized in that a first vibrating screen, a second stone crusher and a second vibrating screen are arranged between the grinding tank and the temporary storage tank, a screen hole of the second vibrating screen is smaller than that of the first vibrating screen, the grinding tank is divided into a first-stage grinding tank and a second-stage grinding tank which are mutually connected in series, the grinding pump is connected onto the first-stage grinding tank and the second-stage grinding tank, the grinding precision of the first-stage grinding tank is smaller than that of the second-stage grinding tank, the first grinding tank is connected with the first vibrating screen, the second-stage grinding tank is connected with the second vibrating screen, the wastes are firstly sent into the first-stage grinding tank, the first vibrating screen, the wastes which can not fall from the first vibrating screen are sent into the second stone crusher to be crushed, the wastes which fall from the first vibrating screen are sent into the second grinding tank to be ground, the wastes which are ground from the second grinding tank are sent into the second vibrating screen to be screened, and the wastes which are ground from the second grinding tank are sent into the temporary storage tank.

2. The apparatus for producing reinjection slurry by grinding drilling waste according to claim 1, wherein the secondary grinding tank is connected to a tertiary grinding tank, the tertiary grinding tank is connected to a second vibrating screen, the grinding precision of the tertiary grinding tank is greater than that of the secondary grinding tank, and the second vibrating screen is connected to a garbage bin; if the waste which cannot be ground or smashed appears, the waste is sent into a third-stage grinding tank through a second vibrating screen for continuous grinding; if the waste material is still unable to be ground or broken up during repeated screening and grinding, it is fed into a waste bin.

3. The apparatus for manufacturing reinjection slurry by grinding of drilling waste as claimed in claim 2, wherein said primary grinding tank, secondary grinding tank and tertiary grinding tank are provided in plural sets, and grinding tanks of the same stage are provided in parallel, and the number of primary grinding tank, secondary grinding tank and tertiary grinding tank used at the same time is the same.

4. The apparatus for grinding drilling waste to make reinjection slurry as claimed in claim 1, wherein said grinding pump is a tungsten carbide grinding pump.

5. The apparatus of claim 1, wherein the waste recovery tank comprises a solid phase recovery tank and a liquid phase recovery tank, the solid phase recovery tank carries solid phase waste, and the liquid phase recovery tank carries liquid phase waste.

6. The apparatus for producing reinjection slurry by grinding drilling waste as claimed in claim 5, wherein said liquid phase recovery tanks are arranged in parallel and have a plurality of sets of liquid phase recovery tanks, and wherein said plurality of sets of liquid phase recovery tanks have interconnecting pipes, and wherein each set of liquid phase recovery tanks has an agitator.

7. The apparatus as claimed in claim 1, wherein the temporary storage tanks are provided with a plurality of sets of temporary storage tanks, the plurality of sets of temporary storage tanks are provided with pipes communicated with each other, and each temporary storage tank is provided with a stirrer.

8. The apparatus as claimed in claim 7, wherein a blending tank is provided on the temporary storage tank connected to the refilling pump, and when the waste in the temporary storage tank does not meet the refilling requirement, the waste is transferred from the temporary storage tank to the blending tank, and a chemical agent is added to the blending tank to make the waste meet the refilling requirement, and the mixed waste is transferred from the blending tank to the refilling pump.

9. The apparatus for producing reinjection slurry by grinding drilling waste as claimed in claim 7, further comprising a control chamber, wherein the valves and pumps on any of the pipes are electrically connected to the control chamber and are opened and closed by the control chamber.

Technical Field

The embodiment of the invention relates to the technical field of drilling waste treatment, in particular to a device for grinding drilling waste to manufacture reinjection slurry.

Background

According to the requirement of environmental protection, the drilling waste can not be discharged at will and needs to be treated by various processes to eliminate pollutants. In the prior art, the treatment of wastes comprises landfill treatment, offshore transportation to land treatment, and chemical addition, so that the cost is high, the well drilling waste reinjection process is one of the waste treatment methods, the reinjection in the sea is zero emission and is treated while drilling, land centralized building stations are built on land for treatment, and the method is characterized in that the well drilling waste and water are mixed to prepare pumpable slurry, and then the slurry is reinjected to deep underground.

In the reinjection process, solid-phase waste needs to be ground to meet the requirement of pumping slurry, and rock debris which cannot be ground needs to be additionally treated. The existing grinding equipment comprises a grinding tank and a grinding pump connected with the grinding tank to realize stirring and grinding of solid-phase waste, the grinding time is long, the rock debris treatment capacity is low, and the quantity of the generated rock debris which cannot be pumped is large. Therefore, how to increase the grinding speed of solid-phase waste and reduce or even eliminate non-pumpable debris waste is a problem to be solved.

Disclosure of Invention

Therefore, the embodiment of the invention provides a device for manufacturing reinjection mud by grinding drilling wastes, which aims to solve the problems of insufficient grinding and poor rock debris treatment capability caused by the fact that a grinding tank is forbidden for grinding in the prior art.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

a device for grinding and manufacturing reinjection slurry by drilling wastes comprises a waste recovery tank, a grinding tank, a temporary storage tank and a reinjection pump, wherein an outlet of the waste recovery tank is connected with the grinding tank, a main water pipeline is connected onto the grinding tank, an outlet of the temporary storage tank is connected with the reinjection pump, a first vibrating screen, a second stone crusher and a second vibrating screen are arranged between the grinding tank and the temporary storage tank, a screen hole of the second vibrating screen is smaller than that of the first vibrating screen, the grinding tank is divided into a first-stage grinding tank and a second-stage grinding tank which are mutually connected in series, the first-stage grinding tank and the second-stage grinding tank are both connected with grinding pumps, the grinding precision of the first-stage grinding tank is smaller than that of the second-stage grinding tank, the first grinding tank is connected with the first vibrating screen, the second-stage grinding tank is connected with the second vibrating screen, the wastes are firstly sent into the first-stage grinding tank, the first vibrating screen is firstly sent into, the wastes which can not fall from the first vibrating screen are sent into the second stone crusher to be crushed, the wastes which fall from the first vibrating screen are sent into the second grinding tank to be ground, the wastes which are ground from the second grinding tank are sent into the second vibrating screen to be screened, and the wastes which are ground from the second grinding tank are sent into the temporary storage tank.

Furthermore, the secondary grinding tank is connected with a tertiary grinding tank, the tertiary grinding tank is connected with a second vibrating screen, the grinding precision of the tertiary grinding tank is greater than that of the secondary grinding tank, and the second vibrating screen is connected with a dustbin; if the waste which cannot be ground or smashed appears, the waste is sent into a third-stage grinding tank through a second vibrating screen for continuous grinding; if the waste material is still unable to be ground or broken up during repeated screening and grinding, it is fed into a waste bin.

Further, one-level grinding jar, second grade grinding jar and tertiary grinding jar all are provided with the multiunit to the grinding jar of the same grade is parallelly connected to be set up, and the quantity of the one-level grinding jar, second grade grinding jar and the tertiary grinding jar of using simultaneously is the same.

Further, the grinding pump is a tungsten carbide grinding pump.

Further, the waste recycling tank comprises a solid phase recycling tank and a liquid phase recycling tank, wherein solid phase waste is borne in the solid phase recycling tank, and liquid phase waste is borne in the liquid phase recycling tank.

Further, the liquid phase recovery tanks are all provided with multiple groups and are arranged in parallel, pipelines communicated with each other are arranged among the multiple groups of liquid phase recovery tanks, and each group of liquid phase recovery tanks is internally provided with a stirrer.

Further, the jar of keeping in total multiunit, multiunit jar of keeping in is equipped with the pipeline of intercommunication each other, all is equipped with the agitator in every jar of keeping in.

Further, be provided with the batching jar on the jar of keeping in that links to each other with the reinjection pump, when the discarded object in the jar of keeping in can not reach the reinjection requirement, carry the discarded object by the jar of keeping in batching jar in to add the chemical agent that makes the discarded object satisfy the reinjection requirement in the jar of batching, carry the reinjection pump by the jar of batching after mixing.

Furthermore, the device also comprises a control chamber, and the valve and the pump on any pipeline are electrically connected with the control chamber and are opened and closed by the control chamber.

The embodiment of the invention has the following advantages:

when grinding the solid phase waste, filter the solid phase waste earlier, smash the solid phase waste that can't sieve down through the stone crusher to smash great solid phase waste and grind the within range that the grinding tank can normally handle, realized all carrying out abundant smashing to the solid phase waste of equidimension not, most solid phase waste homoenergetic just still less in can entering into the temporary storage tank like this, the solid phase waste that can't handle in the dustbin.

After multi-stage screening, the waste which cannot be treated is removed, the waste with large size can be effectively and fully smashed, and the generated non-pumpable rock debris is as small as possible. Because carry out multistage grinding, shortened the grinding time, when every grade of grinding jar all sets up a plurality ofly, the detritus volume that can handle is bigger. Every one-level grinding tank, second grade grinding tank and tertiary grinding tank are when grinding, and the water injection pipeline can carry out the water injection to every grinding tank.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.

Fig. 1 is a schematic overall flow chart of an apparatus for grinding drilling waste to produce reinjection mud according to an embodiment of the present invention.

In the figure: 1. a solid phase recovery tank; 2. a liquid phase recovery tank; 3. a primary grinding tank; 4. a secondary grinding tank; 5. a third-stage grinding tank; 6. a first stone crusher; 7. a first vibrating screen; 8. a second vibrating screen; 9. a tungsten carbide grinding pump; 10. a second stone crusher; 11. a temporary storage tank; 12. a dosing tank; 13. a control room; 14. a reinjection pump; 15. a water injection pipeline; 16. a garbage can is provided.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An apparatus for producing reinjection slurry by grinding drilling waste, as shown in fig. 1, comprises a waste recovery tank, a grinding tank, a temporary storage tank 11 and a reinjection pump 14.

The waste recycling tank is divided into a liquid phase recycling tank 2 and a solid phase recycling tank 1, solid phase waste is stored in the solid phase recycling tank 1, a first stone crusher 6 is arranged at an outlet of the solid phase recycling tank 1, the solid phase waste is sent into the first stone crusher 6 by an excavator to be primarily smashed, and the smashed solid phase waste is sent into the grinding tank. The liquid phase waste is transported to the liquid phase recovery tank 2 from other places by the sewage truck and is sent to the liquid phase recovery tank 2 for storage, the number of the liquid phase recovery tanks 2 is multiple, and the number of the liquid phase recovery tanks 2 used at the same time is increased or reduced according to the amount of the liquid phase waste. All link to each other through the pipeline between jar 2 is retrieved to every liquid phase, still is equipped with the pipeline of mutual intercommunication between the jar 2 is retrieved to the multiunit liquid phase, can make the discarded object in one of them group liquid phase is retrieved jar 2 and send into in another group liquid phase is retrieved jar 2 through the pipeline of mutual intercommunication, guarantees that the volume of the discarded object of each liquid phase storage of retrieving jar 2 is comparatively even. The solid-phase waste and the liquid-phase waste are both conveyed into the grinding tank by a pump through pipelines. In addition, a stirrer is provided in each liquid phase recovery tank 2 to continuously stir the liquid phase waste therein to prevent the liquid phase waste from settling.

A valve is arranged on a pipeline between any two devices or components, and the two devices or components are communicated by opening the corresponding valves, which is common knowledge.

Because the solid phase waste's that the grinding jar will be handled granule can be very big, once grinds and is difficult to handle the completion, so divide into one-level grinding jar 3, second grade grinding jar 4 and tertiary grinding jar 5 with the grinding jar, be provided with water injection pipeline 15 on the grinding jar, water injection pipeline 15 all links to each other with one-level grinding jar 3, second grade grinding jar 4 and tertiary grinding jar 5. One-level grinding tank 3, second grade grinding tank 4 and tertiary grinding tank 5 establish ties and set up and grind the precision and increase in proper order, and one-level grinding tank 3, second grade grinding tank 4 and tertiary grinding tank 5 all have the multiunit, and the multiunit sets up with the grinding tank on level each other parallelly connected. Depending on the amount of waste actually processed, the number of grinding tanks of the same grade can be increased or decreased to be able to carry all the waste processed in the batch. If the amount of the waste is large, three sets of the first-stage grinding tanks 3 are used at the same time, and then the amounts of the second-stage grinding tanks 4 and the third-stage grinding tanks 5 are also three sets.

The grinding tank is connected with a first vibrating screen 7, a second vibrating screen 8 and a second stone crusher 10, the first vibrating screen 7 is connected with the second stone crusher 10, the second stone crusher 10 can not only crush large-particle solid-phase wastes, but also crush small-particle solid-phase wastes, the second-stage grinding tank 4 and the third-stage grinding tank 5 are both connected with the second vibrating screen 8, the second vibrating screen 8 is connected with a garbage disposal box, the garbage disposal box is used for receiving the solid-phase wastes which can not be further ground, each first-stage grinding tank 3, second grade grinding pot 4 and tertiary grinding pot 5 all are connected with tungsten carbide grinding pump 9, and tungsten carbide grinding pump 9 compares better in the wearability of ordinary grinding pump, and the grinding quality is higher, and the solid waste who enters into one-level grinding pot 3, second grade grinding pot 4 or tertiary grinding pot 5 all enters into the tungsten carbide grinding pump 9 that every grinding pot links to each other and grinds.

All be equipped with the agitator in one-level grinding tank 3, second grade grinding tank 4 and tertiary grinding tank 5, the agitator is used for stirring the solid phase discarded object that enters into in the corresponding grinding tank, prevents that solid phase discarded object from deposiing. The primary grinding tank 3 is a primary grinding tank, solid-phase waste entering the primary grinding tank 3 is sent into the first vibrating screen 7 for screening after being ground by the tungsten carbide grinding pump 9, the waste under the screen is sent into the secondary grinding tank 4, the solid-phase waste which cannot be screened is sent into the second stone crusher 10 for crushing, and the crushed solid-phase waste is sent into the primary grinding tank 3 for grinding again.

The secondary grinding tank 4 grinds the solid-phase waste entering the secondary grinding tank through a tungsten carbide grinding tank connected with the secondary grinding tank. The three-stage grinding tank 5 has higher grinding precision compared with the two-stage grinding tank 4, and if the higher grinding precision is required, the solid-phase waste is ground in the two-stage grinding tank 4 for 3-5min and then sent into the three-stage grinding tank 5 for grinding; if the efficiency is improved and the grinding process is shortened, the solid waste is ground in the secondary grinding tank 4 and then sent into the second vibrating screen 8, and the two modes are selected according to the will of a user. The secondary grinding tank 4 is connected with a garbage can 16, the solid-phase waste ground in the tertiary grinding tank 5 is sent into a second vibrating screen 8, the second vibrating screen 8 receives and screens the solid-phase waste from the tertiary grinding tank 5 and the secondary grinding tank 4, the waste under the screen is sent into a temporary storage tank 11, and the waste which cannot be screened is sent into the primary grinding tank 3 for grinding; if waste which cannot be ground or broken up is present, the waste is fed through the second vibrating screen 8 into the tertiary grinding tank 5 for further grinding, and if the waste cannot be ground or broken up in the repeated screening and grinding, the waste is fed into the waste bin 16. The specific process flow is as follows:

the waste sent from the waste recovery tank passes through the primary grinding tank 3, and the solid-phase waste particles are large, so that the liquid-phase waste flows along with the solid-phase waste. The one-level grinding tank 3 is used for stirring the solid-phase waste through the internal stirrer and preventing the solid-phase waste from precipitating, the tungsten carbide grinding pump 9 is used for preliminarily grinding the solid-phase waste, preliminarily smashing the solid-phase waste and simultaneously conveying the solid-phase waste into the first vibrating screen 7. The first vibrating screen 7 screens off small solid-phase wastes, the solid-phase wastes which cannot be screened off are left on the first vibrating screen 7, the large solid-phase wastes are sent to the second stone crusher 10 to be crushed and ground into small particles, and the small particles are sent to the second-stage grinding tank 4.

The solid phase discarded object that enters into in the second grade grinding jar 4 is smashed through the tungsten carbide grinding pump 9 that links to each other with second grade grinding jar 4, the inside agitator of second grade grinding jar 4 can rotate in step and prevent solid phase discarded object sediment, it is more tiny that the tungsten carbide grinding pump will be ground solid phase discarded object, then send into in the second shale shaker 8, great solid phase discarded object is difficult to sift down, then continue to return to and carry out grinding once more in the one-level grinding jar 3, until can be sifted down by second shale shaker 8, then grind, carry in tertiary grinding jar 5.

In order to improve the grinding fineness of the solid-phase waste, after the solid-phase waste in the secondary grinding tank 4 is ground for 3-5min, a valve between the secondary grinding tank 4 and the tertiary grinding tank 5 is opened, the waste enters the tertiary grinding tank 5 from a channel between the secondary grinding tank 4 and the tertiary grinding tank 5, a stirrer inside the tertiary grinding tank 5 synchronously rotates to prevent the solid-phase waste from precipitating, a tungsten carbide grinding pump 9 further grinds the solid-phase waste, the ground solid-phase waste and the liquid-phase waste are sent into a second vibrating screen 8 for screening, the solid-phase waste under the screen is sent into a temporary storage tank 11 for storage, the solid-phase waste without the screen is sent into the primary grinding tank 3 for secondary grinding, if the waste which cannot be ground or smashed appears, the solid-phase waste is sent into the tertiary grinding tank 5 through the second vibrating screen 8 for continuous grinding, if the remaining solid phase waste cannot be screened after multiple screenings, it is sent to a waste bin 16 for storage.

After multi-stage screening, the waste which cannot be treated is removed, the waste with large size can be effectively and fully smashed, and the generated non-pumpable rock debris is as small as possible. Because carry out multistage grinding, shortened the grinding time, when every grade of grinding jar all sets up a plurality ofly, the detritus volume that can handle is bigger. When each of the first-stage grinding tank 3, the second-stage grinding tank 4 and the third-stage grinding tank 5 is ground, the water injection pipeline 15 injects water into each of the grinding tanks.

The temporary storage tank 11 is provided with the multiunit, multiunit temporary storage tank 11 communicates each other through setting up the pipeline, and confirm to use a set of according to the demand of reality, two or more, open the pipeline that first shale shaker 7 and 8 temporary storage tanks 11 link to each other of second shale shaker, solid phase waste gas that can sift down together enters into temporary storage tank 11 with the liquid phase discarded object that follows in, every is kept in intraductal all to be equipped with the agitator, stir the discarded object, guarantee that solid phase and liquid phase discarded object are in a mixed relatively even state.

One of them scratch board storage tank 11 links to each other with reinjection pump 14, remaining scratch board storage tank 11 all is equipped with the pipeline and is the same with this scratch board storage tank 11, one side is equipped with batching jar 12 on scratch board storage tank 11 that links to each other with reinjection pump 14, be used for adding chemical in the batching jar 12, if the arbitrary one of the discarded object each item index that enters into scratch board storage tank 11 does not reach the requirement, then send into batching jar 12 and carry out the batching, if the viscosity of this batch discarded object is not enough, then send into batching jar 12 with it in to add the tackifier in batching jar 12. If the waste in the temporary storage tank 11 meets the refilling requirement, the waste can be directly conveyed to the refilling pump 14 by opening a pipeline, otherwise, the waste is conveyed to the proportioning tank 12, the corresponding chemical agents are added, mixed to meet the refilling requirement, and then conveyed to the refilling pump 14 through a pipeline between the proportioning tank 12 and the refilling pump 14. The reinjection pump 14 injects the uniformly mixed waste into the well, so as to complete the treatment of the waste.

And a control room 13 is also arranged, and the valve and the pump on each pipeline are electrically controlled and are electrically connected with the control room 13 and are opened and closed in the control room 13, so that the whole system can be integrally controlled by a small amount of workers.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.