Intelligent closed preparation tank with good anti-escape effect

Abstract

The application relates to the technical field of closed preparation tanks, in particular to an intelligent closed preparation tank with good anti-escape effect. The intelligent closed preparation tank comprises a tank body, a liquid outlet tank arranged on one side of the tank body and communicated with the tank body, a liquid inlet pipe arranged on the other side of the tank body and at the top, a plurality of stirring devices arranged on the tank body and uniformly distributed, a plurality of manholes arranged on the top of the tank body, sealing devices arranged above each manhole, and downward devices arranged below each manhole. The tank body is sealed, and the staff can conveniently enter the tank body for maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of closed preparation tank, in particular to an intelligent closed preparation tank with good anti-escape effect. BACKGROUND

[0002] Produced liquid sediment refers to the tank bottom sediment generated in the production process of crude oil production, produced liquid treatment, crude oil transportation, produced water treatment, etc. (such as joint station settling tank, sewage oil removal tank, etc.), and the original source is the underground reservoir.

[0003] At present, produced liquid sediment has been used to plug and adjust the oil reservoir, and the injection well pressure rises, and the corresponding oil well sees the effect of water reduction and oil increase. Using produced liquid sediment for plugging and adjusting has the advantages of harmlessness, resource utilization and low cost, which not only eliminates pollution and saves treatment cost, but also creates economic benefits. However, produced liquid sediment contains volatile organic compounds (VOCs), which can cause harm to the human body when the concentration reaches a certain level, and can also have adverse effects on the environment.

[0004] Therefore, it is necessary to configure it in a closed manner. Although there are many closed configuration devices in the prior art, such as a closed continuous bacterial liquid configuration device (CN201610700660.X), a viscoelastic polymer solution configuration device (CN201710329579.X), and an automatic drug configuration device (CN202111341017.X), etc., the current technology lacks effective treatment of drugs and ways to reduce the impact of VOCs volatilization.

[0005] The existing produced liquid sediment profile control agent preparation and injection process does not achieve closed management of the whole process, which has certain environmental safety hazards and does not meet the requirements of green and environmentally friendly production. SUMMARY

[0006] The present application mainly solves the technical problems existing in the prior art, and provides an intelligent closed preparation tank with good anti-escape effect.

[0007] In order to achieve the above purpose, the present application adopts the following technical scheme: an intelligent closed preparation tank with good anti-escape effect, comprising a tank body and a liquid outlet box arranged on one side of the tank body and communicating with the tank body, an inlet pipe is arranged at the top of the other side of the tank body, a plurality of stirring devices are arranged on the tank body; a plurality of manholes are formed in the top of the tank body, a sealing device is arranged above each manhole to seal the manhole, and a downward device is arranged below each manhole to assist in maintenance.

[0008] Further, the sealing device comprises a top plate arranged in parallel above the manhole, a plurality of upward rods are arranged between the top plate and the outer wall of the tank body, a first hydraulic cylinder is arranged on the top plate, the output end of the first hydraulic cylinder penetrates through the top plate and is fixedly connected with a sealing plate, the sealing plate is slidably connected with the upward rods, a sealing block matching the shape of the manhole is arranged at the bottom of the sealing plate, a rubber sealing sleeve is sleeved on the outer wall of the sealing block, and a first sealing ring is arranged on the inner wall of the manhole.

[0009] Further, the edge of the rubber sealing sleeve is fixedly connected with the sealing plate, a gap is arranged between the rubber sealing sleeve and the sealing block, a plurality of air pumps are arranged at the top of the sealing plate, and an air injection groove is arranged in the sealing block and communicates with the output end of the air pump and the gap.

[0010] A plurality of sealing protrusions are arranged on the outer wall of the rubber sealing sleeve, and a clamping groove corresponding to the sealing protrusions is arranged on the inner wall of the first sealing ring.

[0011] Further, a first sealing mechanism is arranged at each sliding connection position between the sealing plate and the upward rods, and a plurality of second sealing mechanisms are arranged between the bottom of the sealing plate and the rubber sealing sleeve.

[0012] Further, the first sealing mechanism comprises a limiting groove arranged on the sealing plate, the limiting groove is annular and located on the outer side of the upward rod, a baffle is slidably connected in the limiting groove, a rubber pad is arranged on the baffle, and a plurality of uniformly distributed supporting springs are arranged between the baffle and the bottom of the limiting groove.

[0013] Further, a plurality of sealing ring plates are concentrically arranged on the bottom surface of the rubber pad. When the rubber pad and the top wall surface of the tank body are in a state of extrusion and adhesion, the sealing ring plates are also extruded, and the plurality of sealing ring plates on each group of rubber pads respectively play the effect of sealing the manhole, thereby greatly improving the sealing effect of the tank body.

[0014] Further, the second sealing mechanism comprises a sliding groove arranged at the bottom of the sealing plate, a sliding plate is slidably connected in the sliding groove, a guide block is arranged below the sliding plate, and a plurality of tension springs are arranged between the sliding plate and the bottom of the sliding groove.

[0015] A positioning groove matched with the guide block is arranged on the inner wall of the rubber sealing sleeve.

[0016] Further, a plurality of uniformly distributed travel grooves are arranged on the side wall of the guide block, a travel plate is slidably connected in the travel groove, a positioning rod is arranged on the travel plate, a return spring is arranged between the positioning rod and the bottom of the travel groove.

[0017] A positioning rubber sheet corresponding to the position of the positioning rod is arranged on the side wall of the positioning groove, and the top end of the positioning rod is arranged as a dome.

[0018] The air guide groove is communicated with the air pump output end and the stroke groove at two ends respectively, and the guide block and the sliding plate are provided with air conveying holes communicated with the stroke groove and the sliding groove at two ends respectively.

[0019] Further, the downward device comprises a downward plate arranged in parallel below the manhole and a plurality of downward rods and second hydraulic cylinders arranged in the tank and uniformly distributed in the circumferential direction of the manhole, the downward plate is in sliding connection with the downward rods, and the output end of the second hydraulic cylinder is fixedly connected with the downward plate.

[0020] Further, the downward plate is provided with a sealing groove corresponding to the position of the guide block, the inner side wall of the sealing groove is provided with a sealing hole corresponding to the position of the positioning rubber sheet, and the inner walls of the sealing groove and the sealing hole are provided with rubber skin pads.

[0021] Further, the stirring device comprises a servo motor, the output end of the servo motor extends into the tank and is fixedly connected with a rotating rod, and the rotating rod is provided with stirring blades.

[0022] Further, the tank is further provided with a screen plate, and the tank is further provided with a floating ball liquid level instrument and a breather valve.

[0023] The liquid outlet tank is provided with a partition plate in an inclined state, and the top of the liquid outlet tank is provided with an operation hole.

[0024] The tank and the liquid outlet tank are provided with a filter screen.

[0025] The present application provides an intelligent sealing preparation tank with good anti-escape effect, which has the following beneficial effects:

[0026] 1. The manhole and the sealing device are arranged, the manhole can facilitate the workers to enter the tank cavity regularly for maintenance and maintenance, and the practicability of the present application is improved; the sealing device can seal the manhole, after the daily maintenance is completed, the output end of the first hydraulic cylinder can drive the sealing plate to move downward, so that the sealing block is clamped into the cavity of the manhole, the first sealing ring of the inner wall of the manhole and the rubber sealing sleeve of the outer wall of the sealing block are extruded, the sealing of the manhole can be realized, so as to ensure the sealing property of the tank, reduce the emission of harmful gas in the tank, and improve the sealing property and environmental protection performance of the tank.

[0027] 2、The rubber sealing sleeve and the air pump are arranged, when the sealing block is engaged into the manhole, the air pump is started to inject air into the rubber sealing sleeve, so that the rubber sealing sleeve and the first sealing ring are extruded, the sealing protrusion is directed into the clamping groove, the stability of the sealing between the rubber sealing sleeve and the first sealing ring is ensured, the air in the rubber sealing sleeve is injected, the first sealing ring and the rubber sealing sleeve are more stable, and the sealing property of the tank body is ensured;

[0028] 3、The first sealing mechanism is arranged, when the sealing plate moves downward and is in abutment with the top wall of the tank body, the rubber pad is extruded and abutted with the top wall of the tank body, the rubber pad is shrunk into the limiting groove, the limiting groove plays the role of intermittent sealing of the manhole, and the sealing property of the tank body is further improved due to the arrangement of the two groups of rubber pads;

[0029] 4、The second sealing mechanism is arranged, before the manhole is sealed, the working switch of the second hydraulic cylinder is started to drive the downward plate to move upward, when the sealing block drives the guide block to move downward, the guide block is inserted into the sealing groove, the bottom outer wall of the rubber sealing sleeve is extruded into the cavity of the sealing groove, the bottom outer wall of the rubber sealing sleeve is in extruded contact with the inner wall of the rubber pad, when the air is injected by the air pump, the positioning rod is extruded into the positioning rubber sheet, the positioning rubber sheet is extruded into the sealing hole, and the stability of the tank body is ensured.

[0030] 5、The downward device is arranged, the downward plate can move upward and downward through the second hydraulic cylinder, when the worker enters into the tank cavity through the manhole, the worker stands on the downward plate to automatically ascend and descend, the downward plate not only plays the role of improving the sealing property of the manhole, but also plays the role of assisting the worker to enter into the tank body for maintenance, and the creativity and practicality are improved. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and other drawings can be obtained according to the provided drawings without creative labor for those skilled in the art.

[0032] The structures, proportions, sizes, etc. shown in the specification are merely used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the defined conditions under which the present application can be implemented, so they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that can be produced by the present application and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present application.

[0033] Figure 1 is a sectional view of the present application;

[0034] Figure 2 is Figure 1 is an enlarged view of A in the middle;

[0035] Figure 3 is Figure 2 is an enlarged view of E in the middle;

[0036] Figure 4 is Figure 1 is an enlarged view of B in the middle;

[0037] Figure 5 is Figure 1 is an enlarged view of C in the middle;

[0038] Figure 6 is Figure 1 is an enlarged view of D in the middle;

[0039] Figure 7 is a perspective view of the present application;

[0040] Figure 8 is Figure 7 is an enlarged view of F in the middle.

[0041] Legend:

[0042] 1, tank; 11, liquid inlet pipe; 12, float liquid level gauge; 13, servo motor; 14, rotating rod; 15, stirring fan blade; 16, screen plate; 17, liquid outlet tank; 18, filter screen; 19, partition plate; 2, manhole; 21, breather valve; 3, sealing device; 31, top plate; 32, first hydraulic cylinder; 33, upward rod; 34, sealing plate; 35, sealing block; 36, first sealing ring; 37, rubber sealing sleeve; 38, sealing protrusion; 39, air pump; 4, air injection groove; 41, clamping groove; 5, first sealing mechanism; 51, rubber pad; 52, sealing ring plate; 53, baffle; 54, limiting groove; 55, supporting spring; 6, second sealing mechanism; 61, guide block; 62, sliding plate; 63, sliding groove; 64, tension spring; 65, air guide groove; 67, positioning rod; 68, travel plate; 69, return spring; 7, travel groove; 71, positioning rubber sheet; 72, air inlet hole; 8, downward plate; 81, downward rod; 82, second hydraulic cylinder; 83, sealing groove; 84, sealing hole; 85, rubber pad. DETAILED DESCRIPTION

[0043] In order to make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0044] Example 1

[0045] As shown in Fig. Figure 1 8, the intelligent closed preparation tank with good anti-escape effect provided by the present application comprises a tank 1 and a liquid outlet tank 17 arranged on one side of the tank 1 and in communication with the tank 1, the other side of the tank 1 is provided with a liquid inlet pipe 11 at the top, and a plurality of stirring devices are arranged on the tank 1; a plurality of manholes 2 are formed in the top of the tank 1, a sealing device 3 is arranged above each manhole 2, and a downward device is arranged below each manhole 2.

[0046] In this embodiment, the sealing device 3 comprises a top plate 31 arranged in parallel above the manhole, a plurality of upward rods 33 are arranged between the top plate 31 and the outer wall of the tank 1, a first hydraulic cylinder 32 is arranged on the top plate 31, the output end of the first hydraulic cylinder 32 penetrates through the top plate 31 and is fixedly connected with a sealing plate 34, the sealing plate 34 is in sliding connection with the upward rods 33, the bottom of the sealing plate 34 is provided with a sealing block 35 matched with the shape of the manhole 2, a rubber sealing sleeve 37 is sleeved on the outer wall of the sealing block 35, and the inner wall of the manhole 2 is provided with a first sealing ring 36.

[0047] In the embodiment, the rubber sealing sleeve 37 is fixedly connected to the sealing plate 34, and gaps are arranged between the rubber sealing sleeve 37 and the sealing blocks 35. The top of the sealing plate 34 is provided with a plurality of air pumps 39, and the sealing blocks 35 are provided with air injection grooves 4 which are communicated with the output ends of the air pumps 39 and the gaps. The outer wall of the rubber sealing sleeve 37 is provided with a plurality of sealing protrusions 38, and the inner wall of the first sealing ring 36 is provided with clamping grooves 41 corresponding to the sealing protrusions 38.

[0048] Embodiment 2

[0049] The embodiment is basically the same as the embodiment 1, and the difference is that in the embodiment, the sealing plate 34 and each sliding connection of the upward rod 33 are provided with a first sealing mechanism 5, and the bottom of the sealing plate 34 and the rubber sealing sleeve 37 are provided with a plurality of second sealing mechanisms 6.

[0050] In the embodiment, the first sealing mechanism 5 includes a limiting groove 54 which is arranged on the sealing plate 34 and is annular and located outside the upward rod 33. A baffle 53 is slidingly connected in the limiting groove 54, and a rubber pad 51 is arranged on the baffle 53. A plurality of uniformly distributed supporting springs 55 are arranged between the baffle 53 and the bottom of the limiting groove 54.

[0051] In the embodiment, the second sealing mechanism 6 includes a sliding groove 63 which is arranged on the bottom of the sealing plate 34. A sliding plate 62 is slidingly connected in the sliding groove 63, and a guide block 61 is arranged below the sliding plate 62. A plurality of tension springs 64 are arranged between the sliding plate 62 and the bottom of the sliding groove 63. The inner wall of the rubber sealing sleeve 37 is provided with a positioning groove which cooperates with the guide block 61.

[0052] In the embodiment, a plurality of uniformly distributed stroke grooves 7 are arranged on the side wall of the guide block 61. A stroke plate 68 is slidingly connected in the stroke groove 7. A positioning rod 67 is arranged on the stroke plate 68. A reset spring 69 is arranged between the positioning rod 67 and the bottom of the stroke groove 7. A positioning rubber sheet 71 which corresponds to the position of the positioning rod 67 is arranged on the side wall of the positioning groove. The top end of the positioning rod 67 is provided with a round top. A gas guide groove 65 is arranged in the sealing plate 34, and the two ends of the gas guide groove 65 are communicated with the output end of the air pump 39 and the stroke groove 7, respectively. A gas conveying hole 72 is arranged in the guide block 61 and the sliding plate 62, and the two ends of the gas conveying hole 72 are communicated with the stroke groove 7 and the sliding groove 63, respectively.

[0053] Embodiment 3

[0054] The embodiment is basically same as the embodiment 2, and the only difference is that the rubber pad 51 is provided with a plurality of sealing ring plates 52 in a concentric manner on the bottom surface. When the rubber pad 51 is in a pressed state with the top wall of the tank 1, the sealing ring plates 52 are also pressed, and the plurality of sealing ring plates 52 on each group of rubber pads 51 respectively play a sealing effect on the manhole 2, thereby greatly improving the sealing effect of the tank 1.

[0055] Embodiment 4

[0056] The embodiment is basically same as the embodiment 1, and the only difference is that the descending device in the embodiment comprises a descending plate 8 arranged in parallel below the manhole and a plurality of descending rods 81 and second hydraulic cylinders 82 arranged in the tank 1 and uniformly distributed in the circumferential direction of the manhole 2, the descending plate 8 is in sliding connection with the descending rods 81, and the output end of the second hydraulic cylinder 82 is fixedly connected with the descending plate 8.

[0057] In the embodiment, the descending plate 8 is provided with a sealing groove 83 corresponding to the position of the guide block 61, the inner side wall of the sealing groove 83 is provided with a sealing hole 84 corresponding to the position of the positioning rubber sheet 71, and the inner walls of the sealing groove 83 and the sealing hole 84 are provided with rubber skin pads 85.

[0058] Embodiment 5

[0059] The embodiment is basically same as the embodiment 1, and the only difference is that the stirring device comprises a servo motor 13, the output end of the servo motor 13 extends into the inside of the tank 1 and is fixedly connected with a rotating rod 14, and the rotating rod 14 is provided with stirring blades 15.

[0060] Embodiment 6

[0061] The embodiment is basically same as the embodiment 1, and the only difference is that the tank 1 is further provided with a screen plate 16, a float ball liquid level instrument 12 and a breather valve 21; the liquid outlet tank 17 is provided with a partition plate 19 in an inclined state, and the top of the liquid outlet tank 17 is provided with an operation hole; and the tank 1 and the liquid outlet tank 17 are provided with a filter screen 18.

[0062] Working principle: The produced liquid sediment is injected into the cavity of the tank 1 through the liquid inlet pipe 11, the rotating rod 14 and the stirring blades 15 are driven to stir the produced liquid sediment through the working of the servo motor 13, the produced liquid sediment is filtered through the screen plate 16, the breather valve 21 can keep the pressure in the cavity of the tank 1 always in a safe and stable state, the float ball liquid level instrument 12 can facilitate the staff to judge the storage amount of the produced liquid sediment in the cavity of the tank 1, the filtered produced liquid sediment can enter the liquid outlet tank 17 through the filter screen 18, and the produced liquid sediment can be discharged through the operation hole at the top of the liquid outlet tank 17.

[0063] The manhole 2 is arranged, so that the staff can enter the cavity of the tank body 1 regularly for maintenance and maintenance, and the sealing device 3 is arranged, when the daily maintenance is completed, the output end of the first hydraulic cylinder 32 drives the sealing plate 34 to move downward, the sealing block 35 is clamped into the cavity of the manhole 2, the first sealing ring 36 on the inner wall of the manhole 2 and the rubber sealing sleeve 37 on the outer wall of the sealing block 35 are extruded, the sealing of the manhole 2 is realized, and the sealing of the tank body 1 is realized.

[0064] The rubber sealing sleeve 37 and the air pump 39 are arranged, when the sealing block 35 is clamped into the manhole 2, the air pump 39 is started, the additional air is injected into the rubber sealing sleeve 37, the rubber sealing sleeve 37 is extruded with the first sealing ring 36, the sealing protrusion 38 is directionally clamped into the clamping groove 41, the stability of the sealing between the rubber sealing sleeve 37 and the first sealing ring 36 is guaranteed, the air is injected into the rubber sealing sleeve 37, the first sealing ring 36 and the rubber sealing sleeve 37 are more stable, and the sealing property of the tank body 1 is guaranteed.

[0065] The first sealing mechanism 5 is arranged, when the sealing plate 34 moves downward and is in abutting state with the top wall of the tank body 1, the rubber pad 51 is extruded and abuts with the top wall of the tank body 1, the rubber pad 51 is shrunk into the limiting groove 54, the limiting groove 54 is annular, the limiting groove 54 plays the role of intermittent sealing of the manhole 2, and the two groups of rubber pads 51 further improve the sealing property of the tank body 1.

[0066] The sealing ring plate 52 is arranged on the bottom of each group of rubber pads 51, when the rubber pad 51 is in extrusion and abutting state with the top wall of the tank body 1, the sealing ring plate 52 is also extruded, a plurality of sealing ring plates 52 on each group of rubber pads 51 respectively play the effect of intermittent sealing of the manhole 2, and the sealing effect of the tank body 1 is greatly improved.

[0067] The downward plate 8 and the second sealing mechanism 6 are arranged, before the manhole 2 is sealed, the working switch of the second hydraulic cylinder 82 is started, the second hydraulic cylinder 82 drives the downward plate 8 to move upward, when the sealing block 35 drives the guide block 61 to move downward, the guide block 61 extends into the sealing groove 83, the outer wall of the bottom of the rubber sealing sleeve 37 is extruded into the cavity of the sealing groove 83, the outer wall of the bottom of the rubber sealing sleeve 37 is extruded and contacted with the inner wall of the rubber pad 85, when the air is injected by the air pump 39, the positioning rod 67 is extruded into the positioning rubber sheet 71, the positioning rubber sheet 71 is extruded into the sealing hole 84, and the stability of the sealing of the tank body 1 is guaranteed.

[0068] The present application sets the down plate 8, the down plate 8 can be realized by the second hydraulic cylinder 82 to move down, when the staff enters the tank 1 cavity through the manhole 2, the staff stands on the down plate 8 to carry out automatic lifting, the down plate 8 not only plays the effect of improving the sealing of the manhole 2, and the down plate 8 also plays the benefit of assisting the staff to overhaul, thereby improving the creativity and practicality of the present application.

[0069] Obviously, many modifications and variations based on the purpose of the present application made by those skilled in the art belong to the protection scope of the present application.

Claims

1. An intelligent sealed preparation tank with good anti-escape effect, including a tank body (1) and an outlet tank (17) disposed on one side of the tank body (1) and connected thereto, an inlet pipe (11) is provided on the top of the other side of the tank body (1), and several uniformly distributed stirring devices are provided on the tank body (1). Its features are: The top of the tank (1) is provided with several manholes (2), each manhole (2) is provided with a sealing device (3) above it, and each manhole (2) is provided with a downward device below it; The sealing device (3) includes a top plate (31) arranged parallel to the manhole directly above it. Several upward rods (33) are arranged between the top plate (31) and the outer wall of the tank (1). A first hydraulic cylinder (32) is arranged on the top plate (31). The output end of the first hydraulic cylinder (32) passes through the top plate (31) and is fixedly connected to a sealing plate (34). The sealing plate (34) is slidably connected to the upward rods (33). A sealing block (35) matching the shape of the manhole (2) is arranged at the bottom of the sealing plate (34). A rubber sealing sleeve (37) is fitted on the outer wall of the sealing block (35). A first sealing ring (36) is arranged on the inner wall of the manhole (2). The edge of the rubber sealing sleeve (37) is fixedly connected to the sealing plate (34). A gap is provided between the rubber sealing sleeve (37) and the sealing block (35). Several air pumps (39) are provided on the top of the sealing plate (34). An air injection groove (4) is provided in the sealing block (35) to connect the output end of the air pump (39) with the gap. The outer wall of the rubber sealing sleeve (37) is provided with a number of sealing protrusions (38), and the inner wall of the first sealing ring (36) is provided with a groove (41) corresponding to the sealing protrusions (38).

2. The intelligent sealed preparation tank with good anti-escape effect according to claim 1, characterized in that: Each sliding connection between the sealing plate (34) and the upper rod (33) is provided with a first sealing mechanism (5); Several second sealing mechanisms (6) are provided between the bottom of the sealing plate (34) and the rubber sealing sleeve (37).

3. The intelligent sealed preparation tank with good anti-escape effect according to claim 2, characterized in that: The first sealing mechanism (5) includes a limiting groove (54) opened on the sealing plate (34). The limiting groove (54) is annular and located outside the upward rod (33). A baffle (53) is slidably connected in the limiting groove (54). A rubber pad (51) is provided on the baffle (53). A number of evenly distributed support springs (55) are provided between the baffle (53) and the bottom of the limiting groove (54).

4. The intelligent sealed preparation tank with good anti-escape effect according to claim 3, characterized in that: Several sealing ring plates (52) are concentrically arranged on the bottom surface of the rubber pad (51).

5. The intelligent sealed preparation tank with good anti-escape effect according to claim 4, characterized in that: The second sealing mechanism (6) includes a groove (63) opened at the bottom of the sealing plate (34), a sliding plate (62) is slidably connected in the groove (63), a guide block (61) is provided below the sliding plate, and a plurality of tension springs (64) are provided between the sliding plate (62) and the bottom of the groove (63). The inner wall of the rubber sealing sleeve (37) is provided with a positioning groove that cooperates with the guide block (61).

6. The intelligent sealed preparation tank with good anti-escape effect according to claim 5, characterized in that: The guide block (61) has several evenly distributed stroke grooves (7) on its side wall. A stroke plate (68) is slidably connected in the stroke groove (7). A positioning rod (67) is provided on the stroke plate (68). A return spring (69) is provided between the positioning rod (67) and the bottom of the stroke groove (7). The positioning groove sidewall is provided with a positioning rubber sheet (71) corresponding to the position of the positioning rod (67), and the top of the positioning rod (67) is set as a dome; The sealing plate (34) has an air guide groove (65) inside, and the two ends of the air guide groove (65) are respectively connected to the output end of the air pump (39) and the stroke groove (7). The guide block (61) and the slide plate (62) have air supply holes (72) inside, and the two ends of the air supply holes (72) are respectively connected to the stroke groove (7) and the slide groove (63).

7. The intelligent sealed preparation tank with good anti-escape effect according to claim 1, characterized in that: The descending device includes a descending plate (8) arranged parallel to the manhole directly below it, a number of descending rods (81) arranged inside the tank (1) and evenly distributed in the circumferential direction of the manhole (2), and a second hydraulic cylinder (82). The descending plate (8) is slidably connected to the descending rods (81), and the output end of the second hydraulic cylinder (82) is fixedly connected to the descending plate (8).

8. The intelligent sealed preparation tank with good anti-escape effect according to claim 7, characterized in that: The downward plate (8) has a sealing groove (83) corresponding to the position of the guide block (61) on its upper side. The inner wall of the sealing groove (83) has a sealing hole (84) corresponding to the position of the positioning rubber sheet (71). The inner walls of the sealing groove (83) and the sealing hole (84) are provided with rubber pads (85).

9. The intelligent sealed preparation tank with good anti-escape effect according to claim 1, characterized in that: The stirring device includes a servo motor (13), the output end of which extends into the tank (1) and is fixedly connected to a rotating rod (14), and the rotating rod (14) is provided with stirring blades (15).

10. The intelligent sealed preparation tank with good anti-escape effect according to claim 1, characterized in that: The tank (1) is also equipped with a screen plate (16), and the tank (1) is also equipped with a float level gauge (12) and a breather valve (21). The liquid outlet tank (17) is provided with an inclined partition (19), and the top of the liquid outlet tank (17) is provided with an operation hole; A filter screen (18) is provided between the tank (1) and the outlet tank (17).

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