Equipment for preparing authigenic acid

Abstract

The utility model relates to equipment for preparing authigenic acid. The equipment comprises a base, a circular cabin and a stirring part, a mounting plate is arranged on the base, the circular cabin is arranged on the mounting plate through a shaft in a penetrating manner, and a motor A is arranged at the penetrating end; a mounting hole is formed in the top of the circular cabin, and a discharge hole is formed in the bottom of the circular cabin; the stirring part comprises a stirring rod A, a stirring rod B and a motor B, the motor B is fixed on the circular cabin through a mounting seat, the motor B is provided with double output shafts, the output shaft at the lower end of the motor B is connected with the stirring rod A, the stirring rod A penetrates through the mounting hole and extends into the circular cabin, the output shaft at the upper end of the motor B is sleeved with a gear and meshed with the gear of the stirring rod B, and the stirring rod B penetrates through the mounting hole and extends into the circular cabin; during working, the motor A and the motor B are started to drive the circular cabin and the stirring rod A to rotate respectively, so that the stirring rod B rotates, and internal compounds are fully stirred. The stirring device has the beneficial effects that the stirring is more sufficient, the structure is simple, and the mounting and the dismounting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of self - generating acid preparation, in particular to a device for preparing self - generating acid. Background Art

[0002] At present, in the underground reservoir of oil drilling, blockages of varying degrees will occur due to various reasons. Usually, in order to solve the blockage problem, means such as deflagration fracturing, fracturing, and acidification are adopted. However, the action points of deflagration fracturing and fracturing cannot be accurately controlled, making it difficult to achieve uniform plug removal. Currently, more self - generating acid is used for plug removal.

[0003] Self - generating acid generates organic or inorganic strong acids by using some compounds under high - temperature conditions and at a controllable speed. Then these acids will react with carbonate rocks, limestone, or fluoride - containing ion solutions to generate hydrofluoric acid and react with formations such as sandstone and igneous rocks to achieve acidification of the underground reservoir. During the preparation process, different liquid compounds need to be loaded into the reaction device and mixed evenly by stirring for subsequent reactions. Currently, the devices used usually have a relatively large volume of the reaction chamber, and only use a stirring rod protruding for stirring. The stirring of the compound materials is not sufficient. After stirring, there will still be a lot of materials remaining in the chamber, resulting in waste of a lot of materials and an insufficient reaction process with low efficiency.

[0004] And because the acid itself is corrosive, the currently set filtering device is usually of an integral structure. The filter screen in it is easily damaged due to long - term contact with the acid, and it is very inconvenient to clean and disassemble the filtering device after filtration.

[0005] Therefore, based on the deficiencies of the existing device feedback from customers, the inventor made further improvements according to the proposed defects and deficiencies to overcome the above problems. Summary of the Invention

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a device for preparing self - generating acid with more sufficient stirring, simple structure, and convenient installation and disassembly.

[0007] The purpose of the utility model is achieved through the following technical solutions: A device for preparing self - generating acid, characterized in that it includes a base, a circular chamber, a stirring part, and a sub - chamber;

[0008] An installation plate is vertically arranged on the base, the circular chamber is arranged on the installation plate through a rotating shaft, and the rotating shaft is connected to a driving mechanism. Blade plates are arranged on the inner wall of the circular chamber;

[0009] The stirring part is rotatably installed on the circular chamber, and the stirring part is also connected to a driving mechanism;

[0010] The compartment can be manually opened and closed and is connected to the circular chamber through a delivery pipe;

[0011] When working, the compound to be stirred enters the circular chamber through the compartment. After that, the driving mechanism is started and the circular chamber begins to rotate. When the circular chamber rotates, under the action of the blade plates, the materials in the chamber rotate from the bottom of the chamber to the upper part, realizing the up-and-down movement of the materials in the circular chamber. At the same time, the stirring part also rotates in the circular chamber to stir the materials.

[0012] As a preferred technical solution of the present application, the stirring part includes stirring rod A and stirring rod B; the lower half of the stirring rod A and stirring rod B extending into the circular chamber is a long strip square rod, and a plurality of transverse protrusions are arranged on both square rods. The plurality of transverse protrusions are arranged at equal intervals in the vertical direction on the four side surfaces of the long strip square rod to drive the materials to be stirred.

[0013] As a preferred technical solution of the present application, the stirring part further includes motor B. Motor B, as the driving mechanism, has a double output shaft. The lower output shaft is connected to stirring rod A and then extends into the circular chamber. The upper output shaft is sleeved with a driving gear, which meshes with a driven gear. The driven gear is sleeved on stirring rod B, and the lower end of stirring rod B extends into the circular chamber.

[0014] As a preferred technical solution of the present application, the circular chamber is cylindrical. A plurality of blade plates are arranged on the inner circular side surface of the circular chamber at intervals along a certain inclination angle. The positions of the plurality of blade plates are staggered from the stirring rods inserted into the circular chamber to avoid collision between the stirring rods and the blade plates when the stirring rods rotate.

[0015] As a preferred technical solution of the present application, a long rod is arranged on the back surface of the circular chamber facing the mounting plate. The long rod extends out to the mounting plate at the end. An annular groove is opened inward on the mounting plate, and an annular track is arranged in the annular groove. A ball is arranged at the end of the long rod and is adapted to slide with the annular track.

[0016] As a preferred technical solution of the present application, the compartment includes a chamber body, a delivery pipe and a valve; the chamber body is hollow inside, and a round cover is connected to the upper end. The round cover can be opened and closed to add the compound; one end of the delivery pipe is connected to the chamber body, and the other end is connected to the circular chamber to deliver the compound into the circular chamber; the valve is arranged on the delivery pipe, and the flow of materials into the circular chamber is controlled by rotating the valve.

[0017] As a preferred technical solution of the present application, a filter box is further included. The filter box includes a box body, a sleeve and a filter screen. The box body is hollow inside. A round hole is opened on the box body, and a window is opened on the side surface of the box body for the sleeve to be inserted; the filter screen is installed in the sleeve, and a handle is arranged on the outer surface of the sleeve, which can facilitate the disassembly and installation of the sleeve together with the filter screen.

[0018] As a preferred technical solution of the present application, a limiting block is further provided on the sleeve. One end of the limiting block is fixedly connected to the sleeve, and a circular hole is opened at the other end, which is adaptively inserted with a cylinder provided at the corresponding position on the box body. When the reactant flows into the filter box through the round hole on the filter box, the limiting block can limit the sleeve.

[0019] The utility model has the following advantages:

[0020] (1) Stirring is more sufficient, improving work efficiency;

[0021] At present, in the existing preparation equipment, due to the relatively large volume of the inner cavity of the reaction device, the internal compounds are stirred and mixed by extending a stirring rod. However, this method often fails to stir the compounds sufficiently. After the stirring is completed, a lot of compound materials are unfortunately left on the inner wall of the reaction device, resulting in waste of raw materials and low efficiency. In this solution, a circular chamber for compound stirring is designed, and a stirring part is provided on the main body of the circular chamber. The rotation of the circular chamber and the stirring part are controlled by designing motor A and motor B respectively. Motor A drives the circular chamber to rotate through a shaft, and motor B drives the stirring part to connect the stirring rod A to rotate in the circular chamber. Moreover, the stirring part is provided with double stirring rods to avoid the problem of uneven stirring due to the too large volume in the chamber. The double stirring rods are arranged on the circular chamber through gear transmission, one on the left and the other on the right. The design of this solution enables the compounds placed in the circular chamber to be stirred sufficiently and rotate with the rotation of the motor in the chamber, achieving sufficient mixing and reducing the residue on the inner wall at the same time. A plurality of blade plates are also provided on the inner wall of the circle, which is conducive to the agitation of the compound materials;

[0022] (2) The structure is simple, facilitating installation and disassembly;

[0023] Due to the corrosiveness of the acid, the filter screen of the current filtering device for filtering impurities of this product is in long-term contact with acidic substances and is severely damaged, and the product remaining in the device cannot be cleaned up, resulting in device damage. However, the current filtering device is not easy to disassemble. The filter box designed in this solution is directly arranged below the circular chamber, and the two are connected by a detachable discharge pipe. When stirring, the discharge pipe is removed and the discharge port is closed. After the stirring is completed, the product directly enters the filtering device through the discharge pipe for filtering. In the designed structure of the filter box, the box body and the filtering part are detachable structures. The box body and the sleeve are fixed by a limiting block. When it is necessary to clean and replace the filter screen, the sleeve is pulled out through the handle, and then the filter screen is processed. The structure is relatively simple, facilitating installation and disassembly; Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the utility model from the front view perspective;

[0025] Figure 2This is a schematic diagram of the structure of the utility model from the left side viewing angle;

[0026] Figure 3 It is a structural schematic diagram of the utility model from the left side cross-sectional perspective;

[0027] Figure 4 It is a structural schematic diagram of the utility model from the right side viewing angle;

[0028] Figure 5 It is a structural schematic diagram of the utility model from a front cross-sectional perspective;

[0029] Figure 6 This is a schematic diagram of the structure of the utility model after the discharging pipe is installed, viewed from the front cross-sectional perspective;

[0030] In the figure: 1-base, 2-mounting plate, 3-circular cabin, 4-motor A, 5-motor B, 6-blade plate, 7-stirring rod A, 8-stirring rod B, 9-driving gear, 10-driven gear, 11-cabin body, 12-long rod, 13-box body, 14-shell, 15-filter screen, 16-handle, 17-discharging pipe, 18-limiting block, 19-valve, 20-delivery pipe, 21-discharging hole, 22-annular groove. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0032] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] (Example 1)

[0035] See also Figures 1 to 5 , a device for preparing autogenous acid proposed in this embodiment includes a base 1, a filter box, a circular cabin 3, a stirring part, and a compartment;

[0036] Among them, see Figure 2 and Figure 3 A mounting plate 2 is vertically arranged on the base 1, a circular cabin 3 is arranged on the mounting plate 2 through a central axis and a motor A4 is arranged at the end thereof;

[0037] Among them, referring to Figure 4 and Figure 5 , on one side of the circular cabin 3 facing the mounting plate 2, a long rod 12 is provided at the top. A ball is provided at the tail of the long rod 12. An annular track is opened at the position of the mounting plate 2 corresponding to the circular cabin 3, which is adapted to the ball at the tail of the long rod 12; Inside the circular cabin 3, a plurality of blade plates 6 are spacedly arranged on the inner wall of the circular side surface;

[0038] Among them, referring to Figure 5 , the stirring part includes a motor B5, a stirring rod A7 and a stirring rod B8. The stirring rod A7 and the stirring rod B8 are fixedly arranged on the circular cabin 3 through the same mounting seat. The lower parts of the stirring rod A7 and the stirring rod B8 extend into the circular cabin 3. A motor B5 is fixedly arranged on the stirring rod A7. Gears are sleeved on both the stirring rod A7 and the stirring rod B8, and the two are meshed through the gears;

[0039] Among them, referring to Figure 5 , the sub-cabin includes a sub-cabin A and a sub-cabin B. The two sub-cabins are symmetrically arranged on both sides of the circular cabin 3, and their opening and closing are controlled by a valve 19;

[0040] Among them, referring to Figure 5 , the filter box is arranged on the base 1, and there are two layers of detachable filter meshes 15 inside. The upper surface of the filter box is provided with openings;

[0041] When installing, first pass the circular cabin 3 through the shaft and arrange it on the mounting plate 2, and a motor A4 is arranged at the protruding end to drive. The long rod 12 at the top of the circular cabin 3 just contacts the annular track on the mounting plate 2, and the ball at the tail end of the long rod 12 is adapted to the annular track. Then fix the stirring rod A7 and the stirring rod B8 on the side surface of the circular cabin 3 through the mounting seat. The ends of the two stirring rods pass through two mounting holes on the side surface of the circular cabin 3 and are inserted into the circular cabin 3. Then insert the connecting pipe orifices of the sub-cabin A and the sub-cabin B into the side holes on both sides of the circular cabin 3 and fixedly connect them;

[0042] When working, first add an appropriate amount of liquid compound into the sub-cabin A and the sub-cabin B, then turn the valves 19 of the two sub-cabins to make the compound enter the circular cabin 3. At this time, the discharge hole 21 of the circular cabin 3 is in a closed state. Then start the motor A4 and the motor B5. Starting the motor A4 makes the circular cabin 3 rotate as a whole. Starting the motor B5 makes the stirring rod A7 rotate by itself. Since the gear sleeved on the stirring rod B8 is meshed with the gear on the stirring rod A7, the stirring rod B8 also rotates accordingly. The compound in the circular cabin 3 is fully mixed and stirred, so as to generate the required product. After stirring, turn off the motor A4 and the motor B5, open the discharge hole 21, and make the product flow through the externally connected discharge pipe 17 to the filter box arranged on the base 1, and filter it through the two layers of activated carbon filter meshes 15, so as to obtain the product with impurities removed;

[0043] Existing equipment for preparing acids usually does not stir the compounds to be reacted sufficiently, which may lead to waste of raw materials and low working efficiency. This solution adopts a dual-motor mode to stir the compounds. By designing that the circular chamber 3 is directly connected to the motor A4, and the stirring rod located in the circular chamber 3 is connected to the motor B5, the rotation of the circular chamber 3 itself and the rotation of the stirring rod in the circular chamber 3 are realized, making the raw material stirring more sufficient. At the same time, two stirring rods are arranged in the chamber for stirring, also to make the stirring more sufficient. This solution also sets the filtering device, i.e., the filter box, on the base 1. When the reaction of the reactants in the circular chamber 3 is completed, a sleeve is used to connect the holes on the upper surface of the filter box to the discharge hole 21, so as to filter the impurities of the reactants, which is more convenient and portable. And the filter screen 15 structure in the filter box can be disassembled, which is convenient for replacement and cleaning.

[0044] In this embodiment, referring to Figures 2 to 4 , for the design of the base 1, the base 1 is a long rectangular bottom plate. A mounting plate 2 is vertically arranged upward at the center position of the base 1. The mounting plate 2 is also a long rectangle. A through hole is opened on the mounting plate 2, which is adapted to the central axis of the circular chamber 3 passing through the mounting plate 2. One end of the central axis is connected to the motor A4, and the other end is connected to the back of the circular chamber 3. An annular groove 22 is opened inward on the mounting plate 2. Annular tracks are provided on the outer ring side wall and the inner ring side wall of the annular groove 22, and the annular tracks are adapted to the balls of the long rod 12 provided on the circular chamber 3.

[0045] In this embodiment, referring to Figures 3 to 5, for the design of the circular chamber 3, the circular chamber 3 is in a cylindrical shape. The circular surface of the circular chamber 3 faces the mounting plate 2 and is connected to the mounting plate 2 through the central axis. One end of the central axis is connected to the back surface of the circular chamber 3, and the other end passes through the through hole on the mounting plate 2 and is connected to the motor A4. The central axis is rotatably arranged in the mounting plate 2 - that is, the circular chamber 3 is rotatably connected to the mounting plate 2; on the back surface of the circular chamber 3, a long rod 12 is vertically arranged near the edge of the circular edge. One end of the long rod 12 is connected to the back surface of the circular chamber 3, and symmetrically arranged two balls are respectively arranged on the upper and lower surfaces of the other end of the long rod 12. The upper ball is slidably adapted to the outer ring side wall of the annular groove 22, and the lower ball is slidably adapted to the inner ring side wall of the annular groove 22; the inside of the circular chamber 3 is hollow. Two adjacent mounting holes are provided on the circular side surface of the circular chamber 3 for mounting the stirring rod. A discharge hole 21 is provided at the bottom of the chamber opposite to the mounting hole. The discharge hole 21 has a switch door structure and can be manually opened and closed; two symmetrically arranged side holes are also provided on the circular side surface of the circular chamber 3. The two side holes are respectively connected to the sub-chamber A and the sub-chamber B for pouring the liquid compounds for the reaction; seven blade plates 6 are spaced inside the circular chamber 3. The blade plates 6 are in a long rectangular shape and are arranged on the circular side surface inside the circular chamber 3 at a certain angle. The arrangement of the blade plates 6 inside the circular chamber 3 can make the materials mix more fully during rotation and stirring, resulting in a better reaction effect; the blade plates 6 avoid the stirring rod inserted into the circular chamber 3 and are arranged inside the circular chamber 3 avoiding the two side holes, so as to prevent collision between the stirring rod and the blade plates 6 during stirring, which affects the stirring efficiency.

[0046] In this embodiment, referring to Figure 5, for the design of the stirring part, the mounting base is rectangular in shape. Two stirring holes are opened on the mounting base, and the positions of the stirring holes correspond to the two mounting holes opened on the circular side surface of the circular cabin 3. The bottom surface of the mounting base is fixed to the circular cabin 3 by screw connection; the stirring rod A7 is rod-shaped and is inserted into the circular cabin 3 through one of the stirring holes on the mounting base. The stirring rod A7 is divided into two parts. The upper part is a smooth rod, that is, a smooth round rod, and the lower part, that is, the part extending into the circular cabin 3, is a long strip square rod and there are a plurality of transverse protrusions arranged on the rod. The plurality of transverse protrusions are equally spaced from top to bottom on the four side surfaces of the square rod, which can drive the liquid to be stirred and make the stirring more sufficient; the upper part of the stirring rod A7 is connected to the motor B5. The motor B5 is a double-output shaft motor and is connected to the mounting base by screws through the mounting plate 2. The motor shaft at the lower end of the motor B5 is connected to the upper part of the stirring rod, and a driving gear 9 is sleeved on the motor shaft at the upper end thereof; the stirring rod B8 is also rod-shaped and is inserted into the circular cabin 3 through the other stirring hole on the mounting base. The stirring rod B8 is also divided into two upper and lower parts. The upper part is a smooth round rod, and there are also a plurality of transverse protrusions arranged on the square rod of the lower part, which assists the stirring rod A7 to stir inside the circular cabin 3; a driven gear 10 is sleeved on the upper part of the round rod of the stirring rod B8 and extends out of the mounting base, and the driven gear 10 meshes with the driving gear 9 sleeved on the motor shaft at the upper end of the motor A4;

[0047] When the motor B5 is started, since the motor B5 is a double-output shaft motor, the motor shafts at the upper and lower ends of the motor B5 both rotate. The motor shaft at the lower end drives the lower part of the stirring rod A7 to rotate inside the circular cabin 3, and the motor shaft at the upper end drives the driving gear 9 to rotate, so that the meshing driven gear 10 rotates, and thus the lower part of the stirring rod B8 rotates, that is, the rotation of the stirring part inside the circular cabin 3 is realized to stir the material.

[0048] In this embodiment, refer to Figure 5, for the design of the compartments, Compartment A and Compartment B have the same structure and are symmetrically arranged on both sides of the circular compartment 3; each compartment includes a compartment body 11, a delivery pipe 20, and a valve 19. The compartment body 11 is in the shape of a round tank and is hollow inside. The upper end of the compartment body 11 has a round cover that can be opened and closed to add the liquid for reaction. The lower end of the compartment body 11 has an opening that is connected to one end port of the delivery pipe 20. The other end port of the delivery pipe 20 is connected to the side hole of the circular compartment 3. The delivery pipe 20 is an L-shaped pipe, and a valve 19 is provided at the corner of the delivery pipe 20. The valve 19 includes a plug and a knob. By turning the knob, the plug can be switched positions inside the pipe, thereby blocking the pipe or opening the pipe to allow the liquid to flow. By setting the valve 19, the amount of reactants entering the circular compartment 3 for reaction can be controlled, thereby controlling the reaction rate. By setting two compartments to separately add compounds into the circular compartment 3 for reaction, the concentration of the added liquid can be controlled, thereby controlling the concentration of the generated acid, making the entire reaction process more controllable.

[0049] In this embodiment, referring to Figure 5 and Figure 6 , for the design of the filter box, the filter box includes a box body 13, a sleeve 14, and a filter screen 15. The box body 13 is in the shape of a long rectangle and is hollow inside. A round hole is opened on the upper surface of the box body 13, and a long rectangular window is provided on the side of the box body 13. The sleeve 14 is inserted into the box body 13 through the long rectangular window. Card slots are provided on both inner sides of the box body 13, and the sleeve 14 extending into the box body 13 can be fixed through the card slots; the size of the sleeve 14 is smaller than the box body 13 of the filter box. The upper and lower surfaces of the sleeve 14 are open, and a handle 16 is provided on the side of the sleeve 14. The filter screen 15 can be pulled out of the filter box through the handle 16 for replacement; two filter screens 15 are installed in the sleeve 14 through screw connection and are placed one above the other with a certain distance between them; a limiting block 18 is also provided on the side of the sleeve 14. One end of the limiting block 18 is fixedly connected to the sleeve 14, and a round hole is opened at the other end, which is adapted to the cylinder provided at the corresponding position on the side of the box body 13 of the filter box. When the sleeve 14 is inserted into the box body 13, the round hole on the limiting block 18 is adaptively installed with the cylinder on the box body 13. When the reactant liquid enters the filter box, the limiting block 18 can prevent the sleeve 14 and the filter screen 15 from shifting due to excessive liquid.

[0050] The present invention relates to a device for preparing self-generated acid. When preparing, first close the discharge hole 21 of the circular chamber 3, remove the discharge pipe 17, and then add the liquid compounds for reaction into the sub-chamber A and sub-chamber B respectively. Rotate the valves 19 of the two sub-chambers to open the conveying pipe 20. After the liquid flows into the circular chamber 3 through the conveying pipe 20, start the motor A4 and motor B5. The motor A4 drives the circular chamber 3 to rotate, and the motor B5 drives the stirring rod A7 to stir inside the circular chamber 3. Since the stirring rod B8 is meshed with the stirring rod A7 through the driving gear 9 and the driven gear 10, the stirring rod B8 also stirs, so that different compounds in the circular chamber 3 are fully mixed and stirred to react to generate the required product. After the stirring is completed, turn off the motor A4 and motor B5, rotate the discharge hole 21 to the directly below, connect one end of the discharge pipe 17 to the discharge hole 21, and the other end to the filter box arranged directly below. The reactant liquid flows into the filter box and impurities are filtered through two layers of filter screens 15, so as to obtain a purer product;

[0051] This solution realizes the stirring and mixing of compounds by setting two structures on the circular chamber 3 for stirring compounds to react, that is, the motor A4 drives the circular chamber 3 to rotate and the motor B5 drives the stirring part to rotate inside the circular chamber 3. This structure can make the compound raw materials be stirred and mixed more fully. Moreover, there are a stirring rod A7 and a stirring rod B8 in the stirring part, and the power is transmitted through gear meshing for stirring inside the circular chamber 3. Compared with the current devices for preparing reactants of acid, when the compounds are stirred evenly, only stirring rods are used for stirring inside, and there are usually problems such as material residue or insufficient stirring. The design of this solution rotates the entire circular chamber 3 for reaction, so that the compounds entering the chamber can be fully mixed, and there are two stirring rods, one on the left and one on the right, inside the circular chamber 3, avoiding the problem of uneven stirring due to the too large volume inside the chamber; at the same time, there are multiple vane plates 6 arranged on the inner wall of the circular chamber 3. When the circular chamber 3 rotates, the vane plates 6 on the inner wall of the circular chamber 3 also rotate, thus reducing the residue of materials on the inner wall and making the amplitude of the materials being stirred larger;

[0052] Moreover, the device structure of this solution is provided with a sub-compartment for placing and storing compounds on the circular chamber 3. Compared with the current reactor for preparing acid, usually an additional device for placing compounds is set up, and then the liquid compound is injected into the reaction device through a long tube. The process is rather cumbersome, and there is a problem of leakage during transportation. In this solution, the sub-compartment for placing compounds and the circular chamber 3 for reaction are directly set as an integrated structure, which can more simply transport the compounds into the circular chamber 3. By setting the valve 19 to control the amount of compounds entering and leaving the circular chamber 3, the reaction rate can be controlled, which is more convenient and has higher efficiency. In this solution, a filter box is arranged below the circular chamber 3. The filter box is connected to the circular chamber 3 through a detachable discharge pipe 17. The filter screen 15 part of the filter box is detachably arranged in the filter box through a housing 14. Since the generated acid is corrosive, the currently used devices are usually of an integrated structure, which is not convenient for cleaning and disassembly. In this solution, the filter screen 15 part and the box body 13 are set as two structures. When the usage time is too long, the filter screen 15 part can be separately disassembled and replaced, and the filter box can be cleaned, which can extend the service life of the filtering device and is also convenient for installation and repair. At the same time, in order to avoid the problem of cable entanglement when the circular chamber 3 rotates, a circular track is arranged on the mounting plate 2 in this solution, and the ball at the top of the long rod 12 opened on the back of the circular chamber 3 is used to avoid the problem of unclear cable entanglement caused by large-scale rotation.

[0053] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for preparing autogenous acid, characterized in that: It comprises a base (1), a circular cabin (3), a stirring part, and a sub-cabin; A mounting plate (2) is vertically arranged on the base (1), a circular cabin (3) is arranged on the mounting plate (2) via a rotating shaft, the rotating shaft is connected to a driving mechanism, and a blade plate (6) is arranged on the inner wall of the circular cabin (3); The stirring part is rotatably mounted on the circular cabin (3), and is also connected to a driving mechanism; The sub-cabin can be opened and closed manually and is connected to the circular cabin via a delivery pipe (20); The stirring part comprises a stirring rod A (7) and a stirring rod B (8); the lower parts of the stirring rod A (7) and the stirring rod B (8) extending into the circular chamber (3) are long square rods, and a plurality of transverse protrusions are arranged on the two square rods, and the plurality of transverse protrusions are arranged at equal intervals on four sides of the long square rods from top to bottom, so as to drive the materials to be stirred; When working, after the compound to be stirred enters the circular cabin (3) through the compartment, the driving mechanism is started, and the circular cabin (3) starts to rotate. When the circular cabin (3) rotates, under the action of the blade plate (6), the material in the cabin rotates from the bottom of the cabin to the upper part, so that the material moves up and down in the circular cabin (3). At the same time, the stirring part also rotates in the circular cabin (3) to stir the material.

2. The device for preparing autogenous acid according to claim 1, characterized in that: The stirring part also includes a motor B (5). The motor B serves as a driving mechanism and has a double output shaft. The lower output shaft is connected to the stirring rod A and then extends into the circular chamber. The upper output shaft is sleeved with a driving gear (9) which meshes with a driven gear (10). The driven gear is sleeved on the stirring rod B (8). The lower end of the stirring rod B (8) extends into the circular chamber.

3. The device for preparing autogenous acid according to claim 1, characterized in that: The circular chamber (3) is cylindrical, and a plurality of blade plates (6) are arranged at intervals along a certain inclination angle on the inner circular side surface of the circular chamber (3). The positions of the plurality of blade plates (6) are separated from the stirring rod inserted into the circular chamber (3) to avoid collision between the stirring rod and the blade plates (6) when the stirring rod rotates.

4. The device for preparing autogenous acid according to claim 1, characterized in that: A long rod (12) is arranged on the back side of the circular cabin (3) facing the mounting plate (2), the end of the long rod (12) extends out to the mounting plate (2), a circle of annular grooves (22) are provided inwardly on the mounting plate (2), an annular track is arranged in the annular groove (22), and a ball bearing is arranged at the end of the long rod (12) to fit and slide with the annular track.

5. The device for preparing autogenous acid according to claim 2, characterized in that: The sub-cabin comprises a cabin body (11), a delivery pipe (20) and a valve (19); the cabin body (11) is hollow inside and connected to a round cover at the upper end, and the round cover can be opened and closed to add compounds; one end of the delivery pipe (20) is connected to the cabin body (11) and the other end is connected to the circular cabin (3) to transport the compounds into the circular cabin (3); the valve (19) is arranged on the delivery pipe (20), and the material flow into the circular cabin (3) is controlled by rotating the valve (19).

6. The device for preparing autogenous acid according to claim 1, characterized in that: The invention also comprises a filter box, wherein the filter box comprises a box body (13), a casing (14) and a filter screen (15); the box body (13) is hollow inside, a round hole is provided on the box body (13), and a window is provided on the side of the box body (13) for inserting the casing (14); the filter screen (15) is installed in the casing (14), and a handle (16) is provided on the outer surface of the casing (14), so that the casing (14) and the filter screen (15) can be easily disassembled and installed.

7. The device for preparing autogenous acid according to claim 6, characterized in that: The casing (14) is also provided with a limit block (18), one end of the limit block (18) is fixedly connected to the casing (14), and the other end is provided with a circular hole, which is adapted to be inserted into a cylinder provided at a corresponding position on the box body (13). When the reactant flows into the filter box through the circular hole on the filter box, the limit block (18) can limit the casing (14).

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