Automatic chemical raw material adding device

Abstract

The invention relates to an automatic chemical raw material adding device, and belongs to the field of material adding equipment, the right side of a sliding body of the automatic chemical raw material adding device is provided with a protruding part, and the bottom end face of the protruding part is provided with an output hole connected with a second raw material output pipeline; a transmission plate is further fixed to the right side of the sliding body, and a filling hole is formed in the left side of the sliding body and communicates with the output hole through a filling runner. The linkage valve set comprises a valve column vertically installed in the linkage valve set in a sliding mode, a rotating arm is further installed on the right side of the sliding body in an elastic damping hinged mode, and when the driving assembly rotates, the driving assembly can intermittently make contact with the rotating arm and the transmission plate for transmission. One end, in contact with the lug boss, of the rotating arm can be in sliding contact with the right side wall of the sliding body after passing through the lug boss, and when the valve rod falls into a pressure-bearing block fixed on the rack and stays, the first raw material input pipeline is disconnected from the first raw material output pipeline, and the second raw material input pipeline is communicated with the filling hole. The chemical raw material adding device is simple and reliable in structure and efficient and safe in chemical raw material adding.

Description

Technical Field

[0001] The present invention relates to the technical field of material addition equipment, and particularly to an automatic chemical raw material addition device. Background Art

[0002] In order to ensure the high efficiency of the production process, the automation level of chemical raw material addition equipment is generally high. Through an electrical automation control system, remote operation, real-time monitoring, and precise control of parameters such as the addition amount and addition speed of raw materials can be achieved. Operators can operate the equipment through a computer or control panel at a safe distance, and the addition efficiency is extremely high.

[0003] However, in chemical production, not all usage scenarios are suitable for using these highly integrated automatic electrical control devices. For example, in practice, when two raw materials need to be added automatically one by one, for such application scenarios in the prior art, the commonly used technical means are generally two electric control valves, which are frequently opened and closed one by one through electrical automatic control, and the amount of each filling is controlled. However, in practice, different from the addition of ordinary raw materials, the filling environment of some chemical raw materials may be flammable and explosive. Therefore, it is best not to use electrical automatic control addition equipment for automatic addition control too much.

[0004] On the other hand, the chemical environment is usually more corrosive than general material addition occasions. Especially for some chemical raw materials, they have extremely strong corrosiveness, and it is inevitable that some raw materials are dispersed in the air during the raw material addition process. For the electrical control system, it is more likely to corrode cable lines, especially electrical components such as terminal blocks, due to contact with raw materials or exposure to the air, resulting in equipment failures.

[0005] In addition, although the existing electrical automatic control material addition system is efficient, its cost is correspondingly not low, and it is difficult for ordinary personnel to directly repair and inspect. For special media such as chemical raw materials, when in use, the issues of procurement, use, and daily maintenance costs have to be considered. How to use a simpler, more reliable, and more economical means to add certain chemical raw materials safely and efficiently urgently requires in-depth research by technical personnel in this field. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide an automatic chemical raw material addition device. The structure of this automatic chemical raw material addition device is simple, easy to manufacture, and has a low cost. At the same time, it adopts mechanical control, has lower requirements for the use environment, stronger adaptability, and is relatively economical in terms of manufacture, use, and maintenance. At the same time, the present invention also provides another reliable alternative device for the automatic addition of general materials.

[0007] The present invention is achieved through the following technical solutions:

[0008] An automatic chemical raw material adding device has several raw material input pipes, and further includes a sliding body vertically and slidably installed on a frame. There is a convex part at the right bottom end of the sliding body, and an output hole connected to a second raw material output pipe is provided on the bottom end surface of the convex part; a transmission plate located above the convex part is also fixed on the right side of the sliding body, a filling hole is provided on the lower left part of the left side of the sliding body, and the filling hole is communicated with the output hole through a filling flow channel; a linkage valve group is fixed on the upper left part of the left side of the sliding body. The linkage valve group includes a valve stem vertically and slidably installed inside the linkage valve group, and normally the valve stem is in a position where the first raw material input pipe is communicated with the first raw material output pipe.

[0009] Outside the right side of the sliding body, a rotating arm is elastically damped and hinged. The rotating arm is in a position of blocking the output hole under normal conditions and supports the entire sliding body; a driving component is also rotatably installed on the right side of the rotating arm. When the driving component rotates, it can intermittently contact and drive the rotating arm and the transmission plate. When contacting and driving the rotating arm, the rotating arm rotates counterclockwise. After the end of the rotating arm contacting the convex part passes over the convex part, it can slidably contact the right side wall of the sliding body, so that the sliding body vertically drops. When it drops and stays with the valve stem inserted into a pressure-bearing block fixed on the frame, the first raw material input pipe is disconnected from the first raw material output pipe, and the second raw material input pipe is communicated with the filling hole.

[0010] Further, the sliding body is of a rectangular columnar structure, the transmission plate is fixedly arranged perpendicular to the right side of the sliding body, and the transmission plate is located above the driving component.

[0011] Further, a vertical strip-shaped hole is provided in the center of the sliding body, and a pair of rollers are provided in the strip-shaped hole. The rollers are rotatably installed on the frame.

[0012] Further, the bottom end surface of the convex part is a plane, and its upper surface is an arc convex surface. The rotating arm includes a closing block, and the closing block can fit on the end surface of the output hole to block it.

[0013] Further, the rotating arm further includes a vertical block fixed on the rear side surface of the closing block. The top end of the vertical block is elastically damped and hinged on the frame, and a contact rod is also fixed to it at the top end. The contact rod is used to contact and rotate with the driving component.

[0014] Furthermore, the linkage valve group also includes a main body fixed on the right side of the sliding body, and the valve column is vertically and elastically installed in the main body through a first spring, and a valve hole is provided on the valve column. The first raw material input pipeline is connected to the back side of the main body, and the first raw material output pipeline is connected to the front side of the main body. The first spring ensures that under normal conditions, the valve hole of the valve column is aligned and connected with the ports of the first raw material input pipeline and the first raw material output pipeline.

[0015] Furthermore, the bottom of the pressure block is connected to the second raw material input pipe, and a sliding tube is installed in the pressure block in a horizontally elastic and telescopic manner through a second spring. The lower side wall of the sliding tube has a through hole, and the second spring makes the sliding tube in a normal state completely staggered between the through hole and the outlet end of the second raw material input pipe; a wedge block is fixed to the upper tube wall of the sliding tube, and the wedge block is located in a slide groove on the pressure block. When the strip column is inserted into the slide groove, the wedge block is pushed to move right, so that the port of the sliding tube is squeezed and docked with the filling hole.

[0016] Furthermore, the wedge block is a right-angled trapezoidal block structure with an inclined surface facing left. The bottom end of the valve column has a mating surface that cooperates with the left side surface of the wedge block, and when the bottom end of the valve column is inserted to the bottom in the slide groove, it fills the slide groove together with the wedge block.

[0017] Furthermore, a sealing plug is installed in the filling hole in a horizontal elastic manner through a conical spring and a sliding rod, and the conical spring enables the sealing plug to close the filling hole under normal conditions; when the valve column is inserted into the slide groove, the raw material flows out from the sliding tube and squeezes the sealing plug out of the filling hole to the right; the filling flow channel is connected in sequence by a first L-shaped flow channel, a second S-shaped flow channel, and an n-shaped third flow channel.

[0018] Furthermore, the driving assembly includes a driving shaft, a left ring, a right ring, a forearm and a rear arm, wherein the driving shaft is transmission-connected to the power equipment, and the driving shaft is integrally provided with a shaft ring, threads are provided on the driving shaft at both ends of the shaft ring, the left ring and the right ring are respectively sleeved on the left and right ends of the shaft ring, and are respectively axially compressed and fixed by a locking nut; the forearm is fixed to the side of the left ring, and the forearm is used to contact the transmission plate, and the rear arm is fixed to the side of the right ring, and the rear arm is used to contact the rotating arm.

[0019] The beneficial effects of the present invention are:

[0020] When the chemical raw material automatic adding device is working specifically, the driving component rotates clockwise. As one of the working links, the rotating arm is first pushed to a position separated from the output hole. Then, the sliding body freely falls and lands on the pressure-bearing block, relying on the support of the pressure-bearing block. During this period, the conveying of the second raw material is started while the conveying of the first raw material is stopped. The driving component continues to rotate, and its front arm lifts the transmission plate, causing the sliding body to move upward. Then, the conveying of the second raw material stops, and the output of the first raw material resumes. In this way, the two raw materials are alternately output intermittently, and the two raw materials can be separately conveyed to a chemical container below the chemical raw material automatic adding device or at a corresponding position. The structure is simple and reliable, the raw material filling efficiency is relatively high, and the effect of automatic quantitative addition can be obtained. At the same time, there is no need for excessive electrical control cable laying. In an environment where there are flammable, explosive chemical raw materials or gases, the electric sparks generated by electrical equipment may trigger explosion accidents. Although there are explosion-proof electrical automatic control valves, in comparison, it is more advantageous to design the raw material adding equipment as an intrinsically safe structure. And the present invention just has this advantage. It adopts pure mechanical transmission control, does not require the laying of complex electrical control circuits, and does not perform frequent electrical signal input and output control, so it will not or is more difficult to generate electric sparks, fundamentally eliminating the ignition source and being safer and more reliable when applied in places such as dangerous areas of chemical plants.

[0021] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. Brief Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the present invention when adding the first raw material;

[0023] Figure 2 It is a schematic structural diagram of the present invention when adding the second raw material;

[0024] Figure 3 is Figure 1 and Figure 2 a right view of the rotating arm in

[0025] Figure 4 is Figure 2 a schematic structural diagram of the position of the pressure-bearing block in

[0026] Figure 5 It is an internal structural diagram of the pressure-bearing block when the valve stem is not inserted;

[0027] Figure 6 is Figure 1 a right view of the driving component in

[0028] In the figure: sliding body 1, transmission plate 2, convex part 3, output hole 4, filling hole 5, rotating arm 6, drive assembly 7, closing block 8, vertical block 9, contact rod 10, roller 11, linkage valve group 12, pressure-bearing block 13, body 15, first spring 16, valve stem 17, valve hole 18, first raw material input pipeline 19, second spring 21, sliding pipe 22, perforation 23, second raw material input pipeline 24, wedge-shaped block 25, chute 26, sealing plug 27, rear arm 28, front arm 29, left circular ring 30, drive shaft 31, shaft collar 32, right circular ring 33, locking nut 34, first raw material output pipeline 35, first flow channel 36, second flow channel 37, third flow channel 38, conical spring 39, slide bar 40. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] Please refer to Figure 1, the present invention provides a technical solution: an automatic chemical raw material adding device, which is specifically provided with two raw material input pipes for injecting two chemical raw materials respectively. Specifically, it further includes a sliding body 1 vertically slidably mounted on the frame. At the right bottom end of this sliding body 1, there is a convex portion 3. The bottom end surface of the convex portion 3 is provided with an output hole 4 connected to the second raw material output pipe (not shown in the figure), and the corresponding chemical raw material can be output through the second raw material output pipe. In addition, in this embodiment, a transmission plate 2 is fixed on the right side of the sliding body 1 above the convex portion 3. A filling hole 5 is provided at the lower left part of the left side of the sliding body 1. This filling hole 5 is communicated with the output hole 4 through a filling flow channel located in the sliding body 1. At the same time, a linkage valve group 12 is fixed at the upper left part of the left side of this sliding body 1. This linkage valve group 12 includes a valve stem 17 vertically slidably mounted inside the linkage valve group 12. And under normal conditions, the valve stem 17 is in the position where the first raw material input pipe 19 is communicated with the first raw material output pipe 35, that is Figure 1 the position shown, at this time the first raw material input pipe 19 conveys a corresponding chemical raw material to the first raw material output pipe 35.

[0033] On the basis of the above structure, it is also necessary to elastically dampingly hinge and install a rotating arm 6 outside the right side of the sliding body 1, that is, this rotating arm 6 always has a tendency to rotate to the left. During specific manufacturing, a torsion spring and a hinge column can be used for installation, which is a relatively common form of elastic damping hinge. This rotating arm 6 is in the position of blocking the output hole 4 under normal conditions, and will not drip residual raw materials or allow other impurities in the air to enter. Moreover, due to the contact action of the rotating arm 6, the entire sliding body 1 can be supported and in a stable position as shown in Figure 1 , that is, when the first raw material conveying pipe conveys raw materials. In addition, a driving component 7 is rotatably installed on the right side of the rotating arm 6. When this driving component 7 rotates, it can intermittently contact the rotating arm 6 and the transmission plate 2 to achieve transmission. And during the transmission process, when contacting and transmitting with the rotating arm 6, it will cause the rotating arm 6 to rotate counterclockwise, for example, rotate to the dotted line position shown in Figure 1 , that is, release the sliding body 1. Specifically, when the rotating arm 6 rotates counterclockwise, the end of the rotating arm 6 in contact with the convex portion 3 will cross the convex portion 3 as shown in Figure 1 . And after crossing the convex portion 3, it can also slidably contact the right side wall of the sliding body 1 so that the sliding body 1 can freely fall vertically until the valve stem 17 is inserted into the pressure-bearing block 13 fixed on the frame and stays. At this time, the first raw material input pipe 19 and the first raw material output pipe 35 have been disconnected, while the second raw material input pipe 24 and the filling hole 5 have been connected, and then the output hole 4 starts to output the second chemical raw material.

[0034] As shown in Figure 1As shown, in this embodiment, the sliding body 1 has a rectangular columnar structure. The transmission plate 2 is fixedly arranged perpendicular to the right side of the sliding body 1, and the transmission plate 2 is located above the driving assembly 7. For the convenience of sliding installation, a vertical strip-shaped hole is provided in the center of the sliding body 1, and a pair of rollers 11 are arranged in the strip-shaped hole. The rollers 11 are rotatably installed on the frame to guide the sliding body 1 to slide vertically more flexibly. As one of the specific structures, as Figure 1 - Figure 2 , the bottom end surface of the convex part 3 in this embodiment is a plane, and its upper surface is an arc convex surface, so that when the sliding body 1 moves upward, it can push the rotating arm 6, and then move upward smoothly; specifically, referring to Figure 3 together, the rotating arm 6 includes a closing block 8. The closing block 8 can fit on the end surface of the output hole 4 to close it, closing the above-mentioned filling flow channel, avoiding the entry of impurities and at the same time avoiding excessive leakage of the residual raw materials in the flow channel. During specific production, this rotating arm 6 further includes a vertical block 9 fixed on the rear side surface of the closing block 8. The top end of the vertical block 9 is elastically and dampingly hinged to the frame, and a contact rod 10 is also fixed to it. The contact rod 10 is used to contact the driving assembly 7 and rotate, that is, when the driving assembly rotates, it pushes the contact rod 10 to make the rotating arm 6 rotate.

[0035] In this embodiment, the linkage valve group 12 adopted is as Figure 1 and 4 shown, where Figure 1 is the initial state diagram when the linkage valve group 12 does not move down with the sliding body 1, and Figure 4 is the structural schematic diagram after the sliding body 1 falls and the valve column 17 is inserted into the pressure-bearing block 13 for cooperation; specifically, the linkage valve group 12 in this embodiment further includes a body 15 fixed on the right side of the sliding body 1. A valve column 17 is vertically and elastically telescoped in this body 15 through a first spring 16. A valve hole 18 is provided on the valve column 17, as Figure 1 , the first raw material input pipeline 19 is connected to the back of the body 15, and the first raw material output pipeline 35 is connected to the front of the body 15. The installation of the first spring 16 requires that in the normal state, the valve hole 18 of the valve column 17 is aligned and connected with the ports of the first raw material input pipeline 19 and the first raw material output pipeline 35, that is, it is equivalent to directly coaxially aligning and connecting the ports of the two pipelines.

[0036] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5, the bottom of the pressure block 13 is connected to the second raw material input pipeline 24 to input the second raw material, and a sliding tube 22 is horizontally elastically installed in the pressure block 13 through a second spring 21, and the lower side wall of the sliding tube 22 has a through hole 23, and the tube surface of the sliding tube 22 on the side where the through hole 23 is located is in dynamic sealing contact with the inner wall of the pressure block 13, and the second spring 21 makes the sliding tube 22 in a normal state, to be in a position where the through hole 23 and the outlet end of the second raw material input pipe are completely staggered, such as Figure 5 In order to facilitate driving, a wedge block 25 can be fixed on the upper tube wall of the sliding tube 22, and the wedge block 25 is located in the slide groove 26 on the pressure block 13. When the bar column is inserted into the slide groove 26, it will squeeze the wedge block 25, and then push the wedge block 25 to move right, so that the port of the sliding tube 22 is coaxially connected to the aforementioned filling hole 5 to achieve communication, or the tube mouth end of the sliding tube 22 is processed into a conical chamfer, and only the chamfered part is inserted into the filling hole 5 to achieve communication, so that when the sliding body 1 moves up, the two can be smoothly disconnected; no matter which of the above structural designs is adopted, when communication is achieved, the perforation 23 is also aligned and connected with the outlet section of the second raw material input pipe.

[0037] In this embodiment, Figure 4 - Figure 5 The wedge block 25 is a block structure in the shape of a right-angled trapezoid, and the inclined surface is set to the left. The bottom end of the valve column 17 has a mating surface that cooperates with the left side surface of the wedge block 25, and when the bottom end of the valve column 17 is inserted to the bottom in the slide groove 26, it fills the slide groove 26 together with the wedge block 25.

[0038] In this embodiment, in order to better achieve the temporary closure of the above-mentioned filling flow channel, as shown in the figure, a sealing plug 27 is installed in the filling hole 5 through a conical spring 39 and a slide rod 40 to be horizontally elastically telescopic. The conical spring 39 allows the sealing plug 27 to close the filling hole 5 under normal conditions. In use, when the valve column 17 is inserted into the slide groove 26, the raw material flows out from the slide tube 22 and squeezes the sealing plug 27 out of the filling hole 5 to the right, as shown in the figure. Figure 4 In order to minimize the amount of raw materials dripping out when not metered, the filling channel is designed to be connected in sequence by an L-shaped first channel 36, an S-shaped second channel 37, and an n-shaped third channel 38, so that most of the raw materials that need to be strictly controlled can be gathered in the filling channel after the rotating arm 6 is separated from the above-mentioned output end.

[0039] In this embodiment, as an important design structure, Figure 1 and Figure 6As shown in the figure, the drive assembly 7 includes a drive shaft 31, a left ring 30, a right ring 33, a front arm 29 and a rear arm 28. The drive shaft 31 is in transmission connection with a power device, such as an explosion-proof motor. The drive shaft 31 can be made relatively long to be away from all parts related to pipeline connection in this device, and thus away from the points where chemical raw materials may leak out. An annular collar 32 is integrally formed on the drive shaft 31. During specific manufacturing, it can be integrally molded. Threads are provided on the drive shaft 31 at both ends of the annular collar 32. The left ring 30 and the right ring 33 are respectively sleeved on the left and right ends of the annular collar 32 in an axially slidable manner and are respectively axially pressed and fixed by a locking nut 34. During installation, the front arm 29 is fixed to the side of the left ring 30. This front arm 29 is used to contact the transmission plate 2, and the rear arm 28 is fixed to the side of the right ring 33. This rear arm 28 is used to contact the rotating arm 6. The above design structure is adopted to avoid interference when the two arms drive their respective corresponding components. The threaded connection between the ring and the drive shaft 31 is adopted to adjust the relative angle between the front arm 29 and the rear arm 28 during use, and then adjust the output duration of the two raw materials respectively within a rotation cycle. The structure is very simple, but the adjustment function is prominent. It can be realized without any control of electrical set parameters, which is safe and reliable. For example, during use, after the rear arm 28 contacts the contact rod 10 of the rotating arm 6 and releases the sliding body 1, the sliding body 1 naturally falls and stays by relying on the aforementioned pressure-bearing block 13. In this staying state, the second raw material output pipeline continuously outputs the corresponding raw material. When the rotating arm 6 rotates to contact the front arm 29 and the transmission plate 2, the transmission plate 2 is lifted, and then the sliding body 1 is lifted, so that the sliding body 1 is no longer supported by the pressure-bearing block 13. After the random valve stem 17 is disengaged, the second raw material output pipeline stops outputting the corresponding raw material. Suppose the angle between the front arm 29 and the rear arm 28 is adjusted to be smaller. For example, the rear arm 28 remains in place, and the front arm 29 rotates clockwise by an angle relative to the drive shaft 31. Then the front arm 29 will contact the transmission plate 2 in advance, and then lift the sliding body 1 upward in advance, that is, the second raw material output pipeline stops outputting the corresponding raw material in advance.

[0040] In the above description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0041] In addition, terms such as "identical" do not require the components to be absolutely identical, but there can be minor differences. The term "vertical" merely means that the positional relationship between components is more vertical relative to "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An automatic chemical raw material adding device having at least two raw material input pipelines, characterized in that: It further includes a sliding body (1) vertically slidably mounted on the frame. A convex portion (3) is provided at the right bottom end of the sliding body (1). An output hole (4) connected to the second raw material output pipe is provided on the bottom end surface of the convex portion (3). A transmission plate (2) located above the convex portion (3) is also fixed on the right side of the sliding body (1). A filling hole (5) is provided at the lower left part of the sliding body (1). The filling hole (5) is communicated with the output hole (4) through a filling flow channel. A linkage valve group (12) is fixed at the upper left part of the sliding body (1). The linkage valve group (12) includes a valve rod (17) vertically slidably mounted inside the linkage valve group (12). Under normal conditions, the valve rod (17) is in a position where the first raw material input pipe (19) is communicated with the first raw material output pipe (35). A rotating arm (6) is elastically damped and hinged and installed outside the right side of the sliding body (1). The rotating arm (6) is in a position of blocking the output hole (4) under normal conditions and supports the entire sliding body (1). A driving component (7) is also rotatably installed on the right side of the rotating arm (6). When the driving component (7) rotates, it can intermittently contact and drive the rotating arm (6) and the transmission plate (2). When contacting and driving the rotating arm (6), the rotating arm (6) rotates counterclockwise. After the end of the rotating arm (6) contacting the convex portion (3) passes over the convex portion (3), it can slidably contact the right side wall of the sliding body (1), so that the sliding body (1) vertically drops. When it drops and stays with the valve rod (17) inserted into a pressure-bearing block (13) fixed on the frame, the first raw material input pipe (19) is disconnected from the first raw material output pipe (35), and the second raw material input pipe (24) is communicated with the filling hole (5).

2. The chemical raw material automatic adding device according to claim 1, wherein: The sliding body (1) is of a rectangular columnar structure. The transmission plate (2) is fixedly arranged perpendicular to the right side of the sliding body (1) and is located above the driving component (7).

3. The chemical raw material automatic addition device according to claim 2, characterized in that: A vertical strip-shaped hole is provided in the center of the sliding body (1). A pair of rollers (11) are arranged in the strip-shaped hole. The rollers (11) are rotatably installed on the frame.

4. The chemical raw material automatic addition device according to claim 1, characterized in that: The bottom end surface of the convex portion (3) is a plane, and its upper surface is an arc convex surface. The rotating arm (6) includes a closing block (8). The closing block (8) can fit on the end surface of the output hole (4) to block it.

5. The chemical raw material automatic addition device according to claim 4, characterized in that: The rotating arm (6) further includes a vertical block (9) fixed on the rear side surface of the closing block (8). The top end of the vertical block (9) is elastically damped and hinged and installed on the frame, and a contact rod (10) is also fixed thereto. The contact rod (10) is used to contact the driving component (7) and rotate.

6. The chemical raw material automatic addition device according to claim 1, wherein: The linkage valve group (12) also includes a body (15) fixed on the right side of the sliding body (1), the valve column (17) is vertically elastically installed in the body (15) through a first spring (16), a valve hole (18) is provided on the valve column (17), the first raw material input pipeline (19) is connected to the back side of the body (15), and the first raw material output pipeline (35) is connected to the front side of the body (15), and the first spring (16) ensures that under normal conditions, the valve hole (18) of the valve column (17) is aligned and connected with the ports of the first raw material input pipeline (19) and the first raw material output pipeline (35).

7. The chemical raw material automatic addition device according to claim 6, characterized in that: The bottom of the pressure-bearing block (13) is connected to the second raw material input pipe (24). A sliding pipe (22) is horizontally and elastically installed in the pressure-bearing block (13) through a second spring (21). The lower side wall of the sliding pipe (22) has a through hole (23). The second spring (21) makes the sliding pipe (22) in a normal state completely staggered between the through hole (23) and the outlet end of the second raw material input pipe. A wedge block (25) is fixed to the upper tube wall of the sliding pipe (22). The wedge block (25) is located in a slide groove (26) on the pressure-bearing block (13). When the strip column is inserted into the slide groove (26), the wedge block (25) is pushed to move rightward, so that the port of the sliding pipe (22) is squeezed and connected with the filling hole (5), and the through hole (23) is aligned and connected with the outlet end.

8. The chemical raw material automatic addition device according to claim 7, characterized in that: The wedge block (25) is a block structure in the shape of a right-angled trapezoid, and the inclined surface is arranged to face leftward. The bottom end of the valve column (17) has a joint surface that matches the left side surface of the wedge block (25). When the bottom end of the valve column (17) is inserted to the bottom in the slide groove (26), it fills the slide groove (26) together with the wedge block (25).

9. The chemical raw material automatic addition device according to claim 8, characterized in that: A sealing plug (27) is installed in the filling hole (5) in a horizontal elastic and telescopic manner through a conical spring (39) and a sliding rod (40), and the conical spring (39) enables the sealing plug (27) to close the filling hole (5) under normal conditions; when the valve column (17) is inserted into the slide groove (26), the raw material flows out from the sliding tube (22) and squeezes the sealing plug (27) out of the filling hole (5) toward the right; the filling channel is formed by sequentially connecting a first L-shaped channel (36), a second S-shaped channel (37), and an n-shaped third channel (38).

10. The chemical raw material automatic adding device according to any one of claims 1-9, characterized in that: The driving assembly (7) includes a driving shaft (31), a left ring (30), a right ring (33), a front arm (29) and a rear arm (28). Among them, the driving shaft (31) is in transmission connection with a power device, and an axial ring (32) is integrally formed on the upper part of the driving shaft (31). Threads are provided on the driving shaft (31) at both ends of the axial ring (32). The left ring (30) and the right ring (33) are respectively sleeved on the left and right ends of the axial ring (32) and are axially pressed and fixed by a locking nut (34) respectively. The front arm (29) is fixed to the side surface of the left ring (30), and the front arm (29) is used to contact the transmission plate (2). The rear arm (28) is fixed to the side surface of the right ring (33), and the rear arm (28) is used to contact the rotating arm (6).

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