External circulation concentration system

Abstract

The utility model provides an external circulation concentration system, which relates to the technical field of concentration and purification equipment and comprises a heater with a first communicating pipe; the evaporator is communicated with the first communicating pipe, an observation hole is formed in the side wall of the evaporator, and an observation sight glass is arranged on the observation hole; a cavity, a connecting channel and a sliding groove which are sequentially communicated are formed in the side wall of the evaporator, a through hole communicated with the cavity is formed in the outer wall of the evaporator, a rotating block is rotationally connected to the inner wall of the cavity, a baffle is slidably connected to the sliding groove, a first spring is arranged between the groove wall of the sliding groove and the baffle, and an adjusting assembly is arranged in the cavity. The condensation tank is provided with a second communicating pipe communicated with the evaporator, and the second communicating pipe is provided with a separator; and a return pipe is communicated between the separator and the evaporator. According to the utility model, the mirror surface of the sight glass on the evaporation chamber can be cleaned, so that raw materials are prevented from being attached to the mirror surface of the sight glass, and working personnel are prevented from knowing specific conditions in the evaporation chamber through the mirror surface of the sight glass.

Description

Technical Field

[0001] The utility model relates to the technical field of concentration and purification equipment, in particular to an external circulation concentration system. Background Art

[0002] In an external circulation concentration system, an evaporation chamber is included. The main function of the evaporation chamber is to evaporate the solvent in the liquid to gradually concentrate the mixture. During the use of the evaporation chamber, since the raw material is added to the evaporation chamber and the raw material is extracted by heating and condensation, the raw material will adhere to the inner wall of the evaporation chamber. In addition, observation holes are provided on the side wall of the evaporation chamber, and observation mirrors are provided on the observation holes so that the staff can understand the situation inside the evaporation chamber through the observation mirrors. When the raw material in the evaporation chamber adheres to the mirror, it will affect the observation effect of the observation mirror. For the staff, it is difficult to timely understand the specific situation inside the evaporation chamber through the observation mirror on the evaporation chamber during the operation of the evaporation chamber, which will affect the extraction efficiency of the raw material in the evaporation chamber. Summary of the Utility Model

[0003] In order to solve the problem that when the evaporation chamber is in use, the raw material adheres to the mirror surface of the observation mirror on the evaporation chamber, affecting the staff's observation and understanding of the situation inside the evaporation chamber, the utility model provides an external circulation concentration system, which can clean the mirror surface of the observation mirror on the evaporation chamber, avoid the raw material adhering to the mirror surface of the observation mirror, and prevent the staff from understanding the specific situation inside the evaporation chamber through the mirror surface of the observation mirror.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An external circulation concentration system is provided, including:

[0006] A heater, on which a first communication pipe is provided for heating the raw material; an evaporator, which is communicated with the first communication pipe. A plurality of observation holes are provided on the side wall of the evaporator, and an observation mirror is provided on each observation hole; a cavity, a connection channel and a chute are sequentially provided on the side wall of the evaporator, the notch of the chute faces the central axis of the observation hole, a through hole communicated with the cavity is provided on the outer wall of the evaporator, a rotating block passing through the through hole is rotatably connected to the inner wall of the cavity, a baffle covering the observation hole is slidably connected to the chute, a first spring is provided between the chute wall and the baffle, and an adjusting component for linking the rotating block and the baffle is provided inside the cavity; a condensation tank, on which a second communication pipe communicated with the evaporator is provided for cooling the steam, a separator is provided on the second communication pipe for separating the raw material; a reflux pipe is communicated between the separator and the evaporator.

[0007] In some embodiments of the present utility model, the adjusting assembly includes a first rotating wheel, a second rotating wheel, and a connecting rope. The first rotating wheel is rotatably connected to the inner wall of the connecting channel close to the cavity, the second rotating wheel is rotatably connected to the inner wall of the connecting channel close to the sliding groove, one end of the connecting rope is connected to the outer wall of the rotating block, and the other end is wound around and passes through the first rotating wheel and the second rotating wheel in sequence and is connected to the baffle.

[0008] In some embodiments of the present utility model, a cleaning brush that contacts the mirror surface of the observation mirror is provided on the outer wall of the baffle.

[0009] In some embodiments of the present utility model, a card slot communicated with the through hole is formed on the outer wall of the evaporator, a groove is formed on the side wall of the rotating block, a card block adapted to the card slot is slidably connected inside the groove, and a second spring is provided between the groove wall of the groove and the card block.

[0010] In some embodiments of the present utility model, the observation hole includes a first observation hole and a second observation hole that communicate with each other. The first observation hole and the second observation hole are coaxially formed on the side wall of the evaporator. The first observation hole is in a horn shape, the second observation hole is in a straight tube shape, the small diameter of the first observation hole is equal to the inner diameter of the second observation hole. The first observation hole faces the inside of the evaporator and is communicated with the sliding groove, and the second observation hole faces the outside of the evaporator.

[0011] In some embodiments of the present utility model, a scraping plate that is in sliding contact with the baffle is obliquely provided on the inner wall of the evaporator.

[0012] In some embodiments of the present utility model, a cover plate for covering the through hole is rotatably connected to the outer wall of the evaporator.

[0013] In some embodiments of the present utility model, a sealing gasket that fits the baffle is provided on the groove wall of the baffle sliding groove.

[0014] The beneficial effects of the present utility model are as follows:

[0015] The staff rotates the rotating block in the through hole on the side wall of the evaporator. The rotating block drives the baffle in the sliding groove to slide through the adjusting assembly. That is, the rotating block makes a circular motion along its central axis to drive the baffle to move vertically in the sliding groove, so as to realize the shielding of the observation mirror on the side wall of the evaporator. When it is not necessary to observe the working condition inside the evaporator through the observation mirror, the baffle in the sliding groove is slid down by rotating the rotating block. At this time, the baffle can shield the observation mirror, playing a protective role. When it is necessary to observe the working condition inside the evaporator through the observation mirror, the baffle in the sliding groove is raised by rotating the rotating block. At this time, the baffle cannot shield the observation mirror, and the staff can observe the specific working conditions inside the evaporator through the observation mirror, avoiding the influence on the extraction efficiency of the raw materials in the evaporation chamber due to the failure to timely understand the specific situation in the evaporation chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic flow diagram of an external circulation concentration system;

[0018] Figure 2 It is a schematic structural diagram of an evaporator in an external circulation concentration system Figure 1 ;

[0019] Figure 3 It is a schematic structural diagram of an evaporator in an external circulation concentration system Figure 2 ;

[0020] Figure 4 It is a schematic structural diagram of an evaporator in an external circulation concentration system Figure 3 ;

[0021] Figure 5 It is a front view of an evaporator in an external circulation concentration system;

[0022] Figure 6 It is Figure 5 a partial enlarged schematic view at position A in;

[0023] Figure 7 It is a schematic structural diagram of an evaporator in an external circulation concentration system Figure 4 ;

[0024] Figure 8 It is a schematic structural diagram of an evaporator in an external circulation concentration system Figure 5 .

[0025] Reference numerals:

[0026] 1 - Heater, 2 - Evaporator, 20 - Through hole, 201 - Card slot, 21 - Cavity, 22 - Connection channel, 23 - Slide groove, 24 - Observation hole, 240 - First observation hole, 240 - Second observation hole, 25 - First runner, 26 - Second runner, 27 - Connecting rope, 28 - Baffle, 29 - First spring, 290 - Card slot, 3 - Condensation tank, 4 - Separator, 5 - First communication pipe, 6 - Return pipe, 7 - Second communication pipe, 8 - Rotating rod, 80 - Groove, 81 - Second spring, 82 - Block, 9 - Cleaning brush, 10 - Scraper, 11 - Sealing gasket, 12 - Cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 utility model.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model.

[0029] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0030] Embodiment

[0031] As Figure 1 and Figure 2 shown, this embodiment provides an external circulation concentration system, including:

[0032] A heater 1 is provided with a first connecting pipe 5 for heating raw materials.

[0033] An evaporator 2 is connected to the first connecting pipe 5. A plurality of observation holes 24 are provided on the side wall of the evaporator 2, and an observation sight glass is provided on each observation hole 24. A cavity 21, a connecting channel 22 and a sliding groove 23 are sequentially communicated on the side wall of the evaporator 2. The notch of the sliding groove 23 faces the central axis of the observation hole 24. A through hole 20 communicating with the cavity 21 is provided on the outer wall of the evaporator 2. A rotating block passing through the through hole 20 is rotatably connected to the inner wall of the cavity 21. A baffle 28 covering the observation hole 24 is slidably connected to the sliding groove 23. A first spring 29 is provided between the groove wall of the sliding groove 23 and the baffle 28. An adjusting assembly for linking the rotating block and the baffle 28 is provided inside the cavity 21.

[0034] A condensation tank 3 is provided with a second connecting pipe 7 connected to the evaporator 2 for cooling steam. A separator 4 is provided on the second connecting pipe 7 for separating raw materials. A reflux pipe 6 is communicated between the separator 4 and the evaporator 2.

[0035] The staff rotates the rotating block located in the through hole 20 on the side wall of the evaporator 2. The rotating block drives the baffle 28 located in the sliding groove 23 to slide through the adjusting assembly. That is, the rotating block makes a circular motion along its central axis to drive the baffle 28 to move in the vertical direction in the sliding groove 23, so as to shield the observation mirror on the side wall of the evaporator 2. When it is not necessary to observe the working condition inside the evaporator 2 through the observation mirror, by rotating the rotating block, the baffle 28 in the sliding groove 23 is slid down. At this time, the baffle 28 can shield the observation mirror and play a protective role. When it is necessary to observe the working condition inside the evaporator 2 through the observation mirror, by rotating the rotating block, the baffle 28 in the sliding groove 23 is raised. At this time, the baffle 28 cannot shield the observation mirror, and the staff can observe the specific working conditions inside the evaporator 2 through the observation mirror, avoiding the extraction efficiency of the raw materials in the evaporation chamber being affected due to the failure to timely understand the specific situation in the evaporation chamber.

[0036] Further, as Figure 2 and Figure 3 shown, the adjusting assembly includes a first runner 25, a second runner 26 and a connecting rope 27. The first runner 25 is rotatably connected to the inner wall of the connecting channel 22 close to the cavity 21, the second runner 26 is rotatably connected to the inner wall of the connecting channel 22 close to the sliding groove 23, one end of the connecting rope 27 is connected to the outer wall of the rotating block, and the other end is sequentially wound around and connected to the baffle 28 through the first runner 25 and the second runner 26.

[0037] The first runner 25 can be rotatably connected to the connecting channel 22 by setting a connecting rod. That is, the connecting rod is arranged on the opposite side walls of the connecting channel 22, and the first runner 25 is rotatably connected to the connecting rod. The second runner 26 is also arranged on the connecting channel 22 in the same way. The rotating block is rotatably connected to the inner bottom of the cavity 21, the outer wall of the rotating block is connected to the connecting rope 27, and the connecting rope 27 will sequentially pass through the first runner 25 and the second runner 26, and the connecting rope 27 will also be sequentially wound around the first runner 25 and the second runner 26. The first runner 25 is used to adjust the traction direction of the connecting rope 27 so that its traction direction faces the connecting channel 22. The second runner 26 is also suitable for adjusting the traction direction of the connecting rope 27, and adjusting the traction direction of the connecting rope 27 facing the connecting channel 22 to the traction direction for moving the baffle 28.

[0038] During use, the rotating block rotates, and the rotating block pulls the connecting rope 27, so that the connecting rope 27 is wound in the rotation direction of the rotating block, and the connecting rope 27 can sequentially pass through the first runner 25 and the second runner 26 to pull the baffle 28 at the other end of the connecting rope 27. Thus, through the circular motion of the rotating block along its central axis, the linear motion of the baffle 28 along the bottom direction of the sliding groove 23 is completed.

[0039] Further, asFigure 4 As shown, a cleaning brush 9 is provided on the outer wall of the baffle 28 and contacts the mirror surface of the observation mirror.

[0040] The cleaning brush 9 is specifically located at one end of the baffle 28 facing the observation mirror, and can clean the mirror surface of the observation mirror when the baffle 28 moves up and down.

[0041] During use, when the baffle 28 moves toward the slide groove 23, the baffle 28 at this time fails to cover the observation mirror, that is, the staff needs to observe the actual working conditions in the evaporator 2 through the observation mirror. As the staff's observation time increases, the raw materials in the evaporator 2 will adhere to the surface of the observation mirror that is not protected by the baffle 28, thereby causing contamination. Therefore, a cleaning brush 9 is provided on the end of the baffle 28 facing the observation mirror, so that when the baffle 28 rotates with the rotating block, the cleaning brush 9 on the baffle 28 can clean the raw materials adhered to the observation mirror.

[0042] Further, such as Figure 5 and Figure 6 As shown, a slot 201 connected to the through hole 20 is provided on the outer wall of the evaporator 2, a groove 80 is provided on the side wall of the rotating block, and a block 82 adapted to the slot 201 is slidably connected inside the groove 80, and a second spring 81 is provided between the groove wall of the groove 80 and the block 82.

[0043] The slot 201 is located on the outer wall of the evaporator 2, and the slot depth of the slot 201 is less than the depth of the through hole 20. The groove 80 is provided on the side wall of the rotating block, and on one end close to the outside of the evaporator 2. The groove 80 corresponds to the slot 201, and the block 82 slidably connected in the groove 80 is adapted to the slot 201, that is, the block 82 can be inserted into the slot 201 to limit the rotating block. It is worth noting that when the second spring 81 between the groove wall of the groove 80 and the block 82 is in a free state, the block 82 is adapted to the slot 201, but the block 82 is not completely separated from the groove 80, that is, a part of the block 82 is in the groove 80, and a part is in the slot 201, and the rotation of the rotating block can be limited at this time.

[0044] During use, when the baffle 28 in the chute 23 is in a state of blocking the observation mirror, the first spring 29 in the chute 23 is in a free state at this time. The latch 82 on the rotating block and the card slot 201 do not engage with each other, and the latch 82 is located between the groove 80 and the through hole 20. When it is necessary to raise the baffle 28 to expose the observation mirror, the rotating block needs to be rotated at this time. When the rotating block is rotated, the latch 82 slides on the inner wall of the evaporator 2 located in the through hole 20 until the baffle 28 slides into the chute 23 and the observation mirror is exposed. At this time, the latch 82 corresponds to and fits with the card slot 201, that is, under the action of the second spring 81, the latch 82 springs from the groove 80 into the card slot 201 to complete the rotational limit of the rotating block. At this time, the staff does not need to hold the rotating block for a long time to prevent the baffle 28 from falling. When it is necessary to disengage the latch 82 and the card slot 201 from each other, the staff presses the latch 82 by hand and presses the latch 82 into the groove 80, so that the cooperation between the latch 82 and the card slot 201 can be disengaged. It should be noted here that for the convenience of the staff to press the latch 82, the latch 82 should protrude a certain distance from the outer wall surface of the evaporator 2, and a part of its length is also located in the through hole 20 to achieve the rotational limit of the rotating block.

[0045] Further, as Figures 1 - 3 shown, the observation hole 24 includes a first observation hole 240 and a second observation hole 240 that communicate with each other. The first observation hole 240 and the second observation hole 240 are coaxially opened on the side wall of the evaporator 2. The first observation hole 240 is in a horn shape, and the second observation hole 240 is in a straight tube shape. The small diameter of the first observation hole 240 is equal to the inner diameter of the second observation hole 240. The first observation hole 240 faces the inside of the evaporator 2, and the first observation hole 240 communicates with the chute 23. The second observation hole 240 faces the outside of the evaporator 2.

[0046] The first observation hole 240 is located on the side wall of the evaporator 2 facing its own interior, and the second observation hole 240 is located on the side wall of the evaporator 2 facing its own exterior. The first observation hole 240 and the second observation hole 240 communicate with each other, and the central axis of the first observation hole 240 is the same as the central axis of the second observation hole 240. The first observation hole 240 is in a horn shape, having a large diameter end and a small diameter end. The large diameter end faces the inside of the evaporator 2, and the small diameter end faces the second observation hole 240 and is the same as the inner diameter of the second observation hole 240. The observation mirror is installed inside the second observation hole 240. The first observation hole 240 is in a horn shape, and the first observation hole 240 communicates with the chute 23, so that when the baffle 28 in the chute 23 slides out, it can abut against the inner wall of the evaporator 2 without affecting the observation mirror.

[0047] During use, when the baffle 28 in the chute 23 slides out of the chute 23, the end of the baffle 28 away from the chute 23 abuts against the inner wall of the evaporator 2. It should be noted here that the length of the baffle 28 is longer than the maximum diameter of the first observation hole 240, so as to prevent the baffle 28 from falling off between the baffle 28 and the chute 23 when the baffle 28 slides out of the chute 23 and affecting the working condition of the raw material in the evaporator 2. The observation sight glass is located inside the second observation hole 240 and is fixedly installed in the through hole 20 of the evaporator 2 by the connecting flange, without affecting the movement of the baffle 28 in the chute 23.

[0048] Further, as Figure 7 shown, a scraper 10 that is in sliding contact with the baffle 28 is inclined on the inner wall of the evaporator 2.

[0049] The working surface of the scraper 10 faces the baffle 28. Since the chute 23 is connected to the first observation hole 240 and there is a certain distance between the chute 23 and the inner wall of the evaporator 2, the length of this part of the distance is the solid part of the side wall of the evaporator 2. The scraper 10 is arranged in this solid part of the evaporator 2, and the working surface of the scraper 10 can scrape the end of the baffle 28 facing the inside of the evaporator 2.

[0050] During use, when the staff does not need to observe the working condition in the evaporator 2 through the observation sight glass, at this time, the baffle 28 in the chute 23 abuts against the inner wall of the evaporator 2 under the action of the first spring 29, completely covering the observation sight glass. During the operation of the evaporator 2, the raw material generated inside will adhere to the baffle 28. To prevent the raw material adhering to the baffle 28 from filling the chute 23 when the baffle 28 moves and affecting the movement of the baffle 28, the scraper 10 is provided to scrape the raw material adhering to the baffle 28.

[0051] Further, as Figure 5 and Figure 6 shown, a cover plate 12 for covering the through hole 20 is rotatably connected to the outer wall of the evaporator 2.

[0052] The cover plate 12 is hinged to the outer wall of the evaporator 2, so that the cover plate 12 can rotate on the outer wall of the evaporator 2. The rotating cover plate 12 is used to cover the through hole 20 opened on the evaporator 2, that is, to protect the rotating block when the rotating block is not in use.

[0053] During use, rotate the cover plate 12, and the cover plate 12 can cover and protect the through hole 20 opened on the evaporator 2, so as to protect the rotating block when the rotating block is not needed to adjust the baffle 28; when the rotating block is needed, rotate the cover plate 12 to expose the through hole 20 for the staff to use.

[0054] Further, as Figure 8As shown, a gasket 11 that fits against the baffle 28 is provided on the groove wall of the chute 23 of the baffle 28.

[0055] The gasket 11 is located on the groove wall near the notch of the chute 23. When the baffle 28 needs to block the observation sight glass, the baffle 28 will move away from the bottom of the chute 23 and towards the notch of the chute 23 at this time. After the baffle 28 moves to completely block the observation sight glass, the gasket 11 located in the chute 23 will fit against one end of the baffle 28 near the bottom of the chute 23 to prevent the gas in the evaporator 2 from leaking out; when the observation sight glass does not need to be blocked by the baffle 28, the baffle 28 will move towards the bottom of the chute 23 at this time. After the baffle 28 moves to not completely block the observation sight glass, the gasket 11 located in the chute 23 will fit against one end of the baffle 28 near the notch of the chute 23 to prevent the gas in the evaporator 2 from leaking out.

[0056] During use, the gasket 11 is a silicone gasket 11, and during the movement of the baffle 28, the gasket 11 and the baffle 28 can always remain in contact with each other to prevent the gas in the evaporator 2 from leaking.

[0057] 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. For those skilled in the art, the present invention can have various changes and modifications. Without conflict, the embodiments of this application and the features in the embodiments can be arbitrarily combined with each other. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An external circulation concentration system, characterized in that, Comprising: A heater provided with a first connecting pipe for heating raw materials; an evaporator communicated with the first connecting pipe, and a plurality of observation holes are opened on the side wall of the evaporator, and an observation sight glass is provided on each observation hole; a cavity, a connecting channel and a chute are sequentially communicated on the side wall of the evaporator, the notch of the chute faces the central axis of the observation hole, a through hole communicated with the cavity is opened on the outer wall of the evaporator, a rotating block passing through the through hole is rotatably connected to the inner wall of the cavity, a baffle covering the observation hole is slidably connected to the chute, a first spring is arranged between the chute wall and the baffle, and an adjusting assembly for linking the rotating block and the baffle is arranged inside the cavity; a condensation tank provided with a second connecting pipe communicated with the evaporator for cooling steam, a separator is arranged on the second connecting pipe for separating raw materials; a return pipe is communicated between the separator and the evaporator.

2. The external circulation concentration system according to claim 1, wherein The adjusting assembly includes a first runner, a second runner and a connecting rope. The first runner is rotatably connected to the inner wall of the connecting channel close to the cavity, the second runner is rotatably connected to the inner wall of the connecting channel close to the chute, one end of the connecting rope is connected to the outer wall of the rotating block, and the other end is wound around and passes through the first runner and the second runner in sequence and is connected to the baffle.

3. The external circulation concentration system according to claim 1 or 2, characterized in that A cleaning brush in contact with the mirror surface of the observation sight glass is arranged on the outer wall of the baffle.

4. The external circulation concentration system according to claim 3, characterized in that, A clamping groove communicated with the through hole is opened on the outer wall of the evaporator, a groove is opened on the side wall of the rotating block, a clamping block adapted to the clamping groove is slidably connected inside the groove, and a second spring is arranged between the groove wall of the groove and the clamping block.

5. The external circulation concentration system according to claim 4, wherein, The observation hole includes a first observation hole and a second observation hole which are communicated with each other. The first observation hole and the second observation hole are coaxially opened on the side wall of the evaporator. The first observation hole is in a horn shape, the second observation hole is in a straight cylinder shape, the small diameter of the first observation hole is equal to the inner diameter of the second observation hole. The first observation hole faces the inside of the evaporator and is communicated with the chute, and the second observation hole faces the outside of the evaporator.

6. The external circulation concentration system according to claim 5, characterized in that A scraping plate in sliding contact with the baffle is obliquely arranged on the inner wall of the evaporator.

7. The external circulation concentration system according to claim 6, wherein A cover plate for covering the through hole is rotatably connected to the outer wall of the evaporator.

8. The external circulation concentration system according to claim 7, wherein A sealing pad fitting the baffle is arranged on the chute wall of the baffle.

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