A sequential batch negative pressure discharge horizontal conical scraper mother liquid dryer

Abstract

The present invention belongs to the technical field of mother liquor drying, and discloses a sequential batch negative pressure discharging horizontal conical scraper mother liquor dryer, comprising a heat source jacket shell, both ends of the heat source jacket shell are fixedly connected with a top cover and a bottom cover respectively, a stirring mechanism is arranged inside the heat source jacket shell, a driving mechanism is fixedly connected to the middle of the top cover, a mother liquor conveying pipeline is fixedly connected to the side of the top cover, and a steam exhaust pipeline is fixedly connected to the side of the bottom cover. The present invention solves the problem of residue hardening and scaling by arranging the cooperation of structures such as the heat source jacket shell and the stirring mechanism, and makes the heat source jacket shell have a certain slope inside by arranging the cooperation of structures such as the stirring mechanism and the discharging mechanism, and solves the problem of too long time consumption, and by arranging a discharging valve and an air locking discharging device, the discharging valve is driven by a right-angle telescopic rod to move to the waiting area inside the discharging bin.

Description

Technical Field

[0001] The invention belongs to the technical field of mother liquor drying, in particular to a sequential batch type negative pressure discharging horizontal conical scraper type mother liquor drying machine. Background Art

[0002] Mother liquor is the saturated solution remaining after the precipitate or crystals are separated during the chemical precipitation or crystallization process. As a saturated solution, the properties and characteristics of mother liquor have important applications in many fields. For example, in sea salt production, bittern is a by-product of the seawater salt-making industry, which contains high concentrations of valuable minerals such as potassium, magnesium, bromine and sulfate. In order to extract these components from the mother liquor, the mother liquor needs to be dried, and a mother liquor dryer is used at this time.

[0003] Traditional mother liquor dryers are mostly parallel cylinders with horizontal inner walls. After the mother liquor is dried, there is a problem of residue hardening and scaling. In addition, each time the material is discharged, the vacuum state inside the dryer will be destroyed, and it will take too long to re-vacuum. Therefore, a sequential batch negative pressure discharge horizontal conical scraper mother liquor dryer is proposed. Summary of the invention

[0004] In order to solve the problems of residue hardening and scaling and long time consumption mentioned in the above background technology, the present invention provides a sequencing batch type negative pressure discharge horizontal conical scraper mother liquor dryer.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sequential batch negative pressure discharging horizontal conical scraper mother liquor dryer, comprising a heat source jacket shell, the two ends of the heat source jacket shell are respectively fixedly connected with a top cover and a bottom cover, a stirring mechanism is arranged inside the heat source jacket shell, a driving mechanism is fixedly connected to the middle of the top cover, a mother liquor conveying pipeline is fixedly connected to the side of the top cover, a steam exhaust pipeline is fixedly connected to the side of the bottom cover, a discharging mechanism is fixedly connected to the bottom of the heat source jacket shell, an air-locking discharging device is fixedly connected to the bottom of the discharging mechanism, and a threaded locking buckle is clamped at one end of the stirring mechanism;

[0006] The stirring mechanism comprises a stirring rod, and two groups of sliding blocks are linearly distributed inside the stirring rod. The sides of the sliding blocks away from each other are fixedly connected to a limiting sliding block, and the side of the limiting sliding block away from the sliding blocks is fixedly connected to a scraper.

[0007] Preferably, the cross-section of the heat source jacket shell is a transverse trapezoid, the top cover is located at the end of the heat source jacket shell with a smaller diameter, and the bottom cover is located at the end of the heat source jacket shell with a larger diameter, the top cover and the bottom cover are rotatably connected to the stirring mechanism, and the driving mechanism is fixedly connected to the stirring mechanism.

[0008] Preferably, the stirring mechanism also includes a limiting groove opened on the slider, the upper and lower sides of the cross-section of the stirring rod are parallel to the upper and lower sides of the cross-section of the heat source jacket shell, the middle part of the stirring rod is slidably connected with a first adjustment rod, a second adjustment rod and a third adjustment rod, the scraper has an extension plate extending toward one end of the driving mechanism, the first adjustment rod is slidably connected to the second adjustment rod, the second adjustment rod is located between the first adjustment rod and the third adjustment rod, and is slidably connected to the third adjustment rod.

[0009] Preferably, the scraper passes through the stirring rod and extends to the interior of the heat source jacket shell, corresponding to the internal shape of the heat source jacket shell, the distances between the scrapers are equal, and the ends of the scrapers away from the driving mechanism are provided with openings corresponding to the extension plates, the first adjustment rod, the second adjustment rod and the third adjustment rod are respectively engaged with the corresponding limit grooves, the end of the first adjustment rod away from the second adjustment rod is provided with a fixed head and extends to the outside of the bottom cover, and the end of the third adjustment rod away from the second adjustment rod is slidably connected to the stirring rod.

[0010] Preferably, the mother liquor delivery pipeline is located on the upper side of the driving mechanism, the steam exhaust pipeline is located on the upper side of the stirring mechanism, the steam exhaust pipeline is externally connected to a steam filter, and the discharge mechanism is located at the bottom of the heat source jacket shell.

[0011] Preferably, the discharging mechanism comprises a discharging bin, a right-angle telescopic rod is fixedly connected inside the discharging bin, a discharging valve is fixedly connected to the output end of the right-angle telescopic rod, a sealing member is arranged on the top of the discharging valve, and a blocking block is arranged inside the discharging bin.

[0012] Preferably, the discharge valve is slidably connected to the inside of the discharge bin, the discharge bin is fixedly connected to the heat source jacket shell, and the discharge bin is communicated with the inside of the heat source jacket shell, the top of the discharge valve is fitted with a blocking block, the discharge valve is clamped inside the blocking block, the bottom of the discharge bin is fixedly connected to the air lock discharger, and the heat source jacket shell and the air lock discharger are communicated.

[0013] Preferably, the fixed head on the first adjustment rod is clamped with a threaded locking buckle, and the threaded locking buckle is fixedly clamped with the stirring rod.

[0014] Preferably, the first adjustment rod pushes the second adjustment rod to move forward, and the second adjustment rod pushes the third adjustment rod to move forward until the third adjustment rod is in contact with the stirring rod. When the first adjustment rod moves, the slider moves synchronously, and the slider retracts inward along the internal slide groove of the stirring rod, so that the scraper and the inner wall of the heat source jacket shell keep moving parallel to each other, until the scrapers contact each other and the extension plate is inserted into the corresponding opening.

[0015] Preferably, when the stirring rod rotates, the mother liquid delivery pipe delivers the mother liquid, allowing the mother liquid to flow freely downward along the inside of the heat source jacket shell, and at the same time the scraper pushes the mother liquid to form a thin film layer on the inner wall of the heat source jacket shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention solves the problem of residue hardening and scaling by arranging the cooperation of structures such as a heat source jacket shell and a stirring mechanism. The heat source jacket shell is arranged to have a horizontal trapezoidal cross section, so that the interior thereof has a certain slope. When the mother liquid enters the heat source jacket shell, it naturally flows downward along the inner wall of the heat source jacket shell to avoid the mother liquid from accumulating in one place inside the heat source jacket shell. The top cover and the bottom cover arranged at both ends of the heat source jacket shell are used to seal the heat source jacket shell, so that the heat source jacket shell can be pumped into a negative pressure state when working. By arranging the stirring mechanism, the mother liquid can be pushed to form a thin film layer inside the heat source jacket shell when flowing, so as to facilitate the rapid evaporation of the mother liquid.

[0018] The present invention solves the problem of too long time consumption by arranging the coordination of structures such as a stirring mechanism and a discharging mechanism. By arranging a discharging valve and an air-locking discharging device, the discharging valve is driven by a right-angle telescopic rod to move to a waiting area inside the discharging bin, so that the residue inside the heat source jacket shell can directly enter the air-locking discharging device. The air-locking discharging device can discharge the residue without destroying the vacuum degree of the reactor through the rotation of the internal star-shaped baffle, thereby saving the time of re-vacuuming.

[0019] The present invention improves the efficiency of mother liquor evaporation and residue discharge by arranging the coordination of structures such as adjustment rods and scrapers. The adjustment rod drives the scraper to move via a slider and a limit slide, so that the scraper rod can be combined and split. When evaporating the mother liquor, the scrapers are combined to flatten the mother liquor more evenly. When discharging the residue, the scrapers are split and the residue is pushed to the discharge bin by the rotation of the scraper, so that the residue will not remain in the heat source jacket shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side sectional view of the whole of the present invention;

[0022] Figure 3 It is an overall schematic diagram of the stirring mechanism of the present invention;

[0023] Figure 4 It is a side sectional view of the stirring mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the folding of the stirring mechanism of the present invention;

[0025] Figure 6 It is a cross-sectional schematic diagram of the discharging mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the discharging mechanism of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0028] In the figure: 1. heat source jacket shell; 2. top cover; 3. bottom cover; 4. stirring mechanism; 41. stirring rod; 42. slider; 43. limiting slide plate; 44. scraper; 45. limiting groove; 46. first adjusting rod; 47. second adjusting rod; 48. third adjusting rod; 49. extension plate; 5. driving mechanism; 6. mother liquor conveying pipeline; 7. steam discharge pipeline; 8. discharging mechanism; 81. discharging bin; 82. right-angle telescopic rod; 83. discharging valve; 84. sealing element; 85. blocking block; 9. air-locking discharging device; 10. threaded locking buckle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 8 As shown, the present invention provides a sequential batch negative pressure discharging horizontal conical scraper mother liquor dryer, comprising a heat source jacket shell 1, a top cover 2 and a bottom cover 3 are fixedly connected at both ends of the heat source jacket shell 1, a stirring mechanism 4 is arranged inside the heat source jacket shell 1, a driving mechanism 5 is fixedly connected to the middle of the top cover 2, a mother liquor conveying pipeline 6 is fixedly connected to the side of the top cover 2, a steam discharge pipeline 7 is fixedly connected to the side of the bottom cover 3, a discharging mechanism 8 is fixedly connected to the bottom of the heat source jacket shell 1, an air locking discharging device 9 is fixedly connected to the bottom of the discharging mechanism 8, and a threaded locking buckle 10 is clamped at one end of the stirring mechanism 4;

[0031] The stirring mechanism 4 includes a stirring rod 41 , inside which two groups of sliders 42 are linearly distributed. A limiting slider 43 is fixedly connected to one side of the sliders 42 away from each other, and a scraper 44 is fixedly connected to the side of the limiting slider 43 away from the slider 42 .

[0032] The above scheme is adopted: by conveying the mother liquid from the mother liquid conveying pipe 6 into the interior of the heat source jacket shell 1, starting the driving mechanism 5 to drive the stirring rod 41 to drive the scraper 44 to rotate, so as to push the mother liquid to form a thin film layer on the inner wall of the heat source jacket shell 1, so that the mother liquid evaporates in the heat source jacket shell 1, and the steam is discharged from the steam discharge pipe 7. After the evaporation is completed, the driving mechanism 5 is stopped, and the threaded locking buckle 10 is removed from the tail end of the stirring rod 41, and the first adjusting rod 46 is pulled to move outward. At this time, the first adjusting rod 46 will pull the second adjusting rod 46 in turn. The whole rod 47 and the third adjustment rod 48 are unfolded, and the slider 42 is pulled to move synchronously, so that the scraper 44 is unfolded and linearly distributed inside the heat source jacket shell 1, and then the driving mechanism 5 is started to make the scraper 44 push the residue inside the heat source jacket shell 1, so that the residue falls along the inside of the heat source jacket shell 1 to the discharge bin 81, and then the discharge valve 83 is pulled open by the right-angle telescopic rod 82, so that the residue falls from the discharge bin 81 into the air lock discharger 9, and the residue is discharged through the air lock discharger 9, so that the vacuum inside the heat source jacket shell 1 will not be destroyed.

[0033] like Figure 1 and Figure 2 As shown, the cross section of the heat source jacket shell 1 is a transverse trapezoid, the top cover 2 is located at the end of the heat source jacket shell 1 with a smaller diameter, the bottom cover 3 is located at the end of the heat source jacket shell 1 with a larger diameter, the top cover 2 and the bottom cover 3 are rotatably connected to the stirring mechanism 4, and the driving mechanism 5 is fixedly connected to the stirring mechanism 4.

[0034] The above scheme is adopted: by setting the heat source jacket shell 1 to a trapezoidal shape with a horizontal cross section so that the interior thereof has a certain slope, when the mother liquid enters the heat source jacket shell 1, it naturally flows downward along the inner wall of the heat source jacket shell 1 to avoid the mother liquid from accumulating in one place inside the heat source jacket shell 1. The top cover 2 and the bottom cover 3 arranged at both ends of the heat source jacket shell 1 are used to seal the heat source jacket shell 1, so that the heat source jacket shell 1 can be evacuated into a negative pressure state when working. By setting the stirring mechanism 4, the mother liquid can be pushed to form a thin film layer inside the heat source jacket shell 1 when flowing, so as to facilitate the rapid evaporation of the mother liquid.

[0035] like Figure 3 , Figure 4 and Figure 5As shown, the stirring mechanism 4 also includes a limiting groove 45 opened on the slider 42, the upper and lower sides of the cross section of the stirring rod 41 are parallel to the upper and lower sides of the cross section of the heat source jacket shell 1, the middle of the stirring rod 41 is slidably connected with a first adjustment rod 46, a second adjustment rod 47 and a third adjustment rod 48, and the scraper 44 extends toward one end of the driving mechanism 5. The first adjustment rod 46 is slidably connected to the second adjustment rod 47, the second adjustment rod 47 is located between the first adjustment rod 46 and the third adjustment rod 48, and is slidably connected to the third adjustment rod 48, and the scraper 4 4 penetrates the stirring rod 41 and extends to the inside of the heat source jacket shell 1, corresponding to the internal shape of the heat source jacket shell 1, the distances between the scrapers 44 are equal, and the ends of the scrapers 44 away from the driving mechanism 5 are each provided with an opening corresponding to the extension plate 49, the first adjustment rod 46, the second adjustment rod 47 and the third adjustment rod 48 are respectively engaged with the corresponding limit grooves 45, the end of the first adjustment rod 46 away from the second adjustment rod 47 is provided with a fixed head and extends to the outside of the bottom cover 3, and the end of the third adjustment rod 48 away from the second adjustment rod 47 is slidably connected to the stirring rod 41.

[0036] The above scheme is adopted: by setting a stirring mechanism 4, the stirring rod 41 can drive the scraper 44 to rotate to push the mother liquid away, so that the mother liquid heating area is larger and the evaporation efficiency is improved. The slider 42 and the limit slider 43 are set inside the stirring rod 41, and the limit slider 43 can slide along the upper and lower edge lines of the stirring rod 41, so that the scraper 44 can move inside the heat source jacket shell 1 and fit the inner wall of the heat source jacket shell 1. The design of the first adjustment rod 46, the second adjustment rod 47 and the third adjustment rod 48 can push the slider 42 to move. By driving the slider 42 to move, the scraper 44 can be combined and adjusted. Split, the scraper 44 can be combined when the mother liquid is in the initial state, so that the mother liquid can be directly flattened to form a thin film layer. After the mother liquid is added, the rotation of the stirring rod 41 is stopped, and the scraper 44 is split. The scraper 44 cleans the residue to prevent the residue from accumulating at the bottom discharge port of the heat source jacket shell 1. By setting the extension plate 49, the extension plate 49 can fill the gap between the scrapers 44 after the scrapers 44 are unfolded, thereby increasing the working area of ​​the scrapers. At the same time, an opening corresponding to the extension plate 49 is opened at the end of the scraper 44 away from the driving mechanism 5, so that when 44 are merged, the extension plate 49 can be easily folded.

[0037] like Figure 2 As shown, the mother liquid delivery pipeline 6 is located on the upper side of the driving mechanism 5, the steam exhaust pipeline 7 is located on the upper side of the stirring mechanism 4, the steam exhaust pipeline 7 is externally connected to a steam filter, and the discharge mechanism 8 is located at the bottom of the heat source jacket shell 1.

[0038] The above scheme is adopted: by arranging the mother liquor conveying pipeline 6 on the upper side of the driving mechanism 5, the mother liquor is at a high place when entering the heat source jacket shell 1, so that the mother liquor can flow downward better. The design of the steam exhaust pipeline 7 can quickly discharge the steam evaporated from the mother liquor, and the steam exhaust pipeline 7 is located on the upper side of the stirring mechanism 4, which is conducive to the discharge of steam. The steam exhaust pipeline 7 is externally connected to a steam filter, which can filter impurities in the steam and then condense the steam. The discharging mechanism 8 is arranged at the bottom of the heat source jacket shell 1, which can facilitate the discharge of residues without residue and blockage.

[0039] like Figure 6 , Figure 7 and Figure 8 As shown, the discharging mechanism 8 includes a discharging bin 81, to which a right-angle telescopic rod 82 is fixedly connected, and a discharging valve 83 is fixedly connected at the output end of the right-angle telescopic rod 82. A sealing member 84 is arranged on the top of the discharging valve 83, and a blocking block 85 is arranged inside the discharging bin 81. The discharging valve 83 is slidably connected inside the discharging bin 81. The discharging bin 81 is fixedly connected to the heat source jacket shell 1, and the discharging bin 81 is communicated with the interior of the heat source jacket shell 1. The top of the discharging valve 83 fits with the blocking block 85, and the discharging valve 83 is clamped inside the blocking block 85. The bottom of the discharging bin 81 is fixedly connected to the air locking discharging device 9, and the heat source jacket shell 1 and the air locking discharging device 9 are communicated. The fixed head on the first adjusting rod 46 is clamped with the threaded locking buckle 10, and the threaded locking buckle 10 is fixedly clamped with the stirring rod 41.

[0040] The above scheme is adopted: by setting up a discharging mechanism 8, the discharging bin 81 is fixedly connected to the heat source jacket shell 1, which can facilitate the discharge of the residue inside the heat source jacket shell 1, and the setting of the right-angle telescopic rod 82 can drive the discharging valve 83 to move vertically and horizontally. By setting the discharging valve 83 and the air-locking discharging device 9, the right-angle telescopic rod 82 drives the discharging valve 83 to move to the waiting area inside the discharging bin 81, so that the residue inside the heat source jacket shell 1 can directly enter the air-locking discharging device 9, and the air-locking discharging device 9 can discharge the residue without destroying the vacuum degree of the reactor through the rotation of the internal star-shaped baffle. The design of the blocking block 85 can cover the head of the discharging valve 83 when the right-angle telescopic rod 82 moves to the waiting area to prevent the residue from entering the waiting area.

[0041] like Figures 2 to 8As shown, the first adjusting rod 46 pushes the second adjusting rod 47 to move forward, and the second adjusting rod 47 pushes the third adjusting rod 48 to move forward until the third adjusting rod 48 is against the stirring rod 41. When the first adjusting rod 46 moves, the slider 42 moves synchronously, and the slider 42 retracts inward along the internal slide groove of the stirring rod 41, so that the scraper 44 keeps moving parallel to the inner wall of the heat source jacket shell 1 until the scrapers 44 contact each other and the extension plate 49 is inserted into the corresponding opening. When the stirring rod 41 rotates, the mother liquor is delivered into the mother liquor through the mother liquor delivery pipe 6, and the mother liquor flows freely downward along the inside of the heat source jacket shell 1. At the same time, the scraper 44 pushes the mother liquor to form a thin film layer on the inner wall of the heat source jacket shell 1.

[0042] The above scheme is adopted: when the first adjusting rod 46 pushes the second adjusting rod 47 to move forward, the second adjusting rod 47 pushes the third adjusting rod 48 to move forward until the third adjusting rod 48 is against the stirring rod 41. When the first adjusting rod 46 moves, the slider 42 moves synchronously, and the slider 42 retracts inward along the internal slide groove of the stirring rod 41, so that the scraper 44 and the inner wall of the heat source jacket shell 1 keep moving parallel, until the scrapers 44 contact each other, and the extension plate 49 is inserted into the corresponding opening to fill the gap between the scrapers 44 and increase the effective area. When the stirring rod 41 rotates, the mother liquor is delivered into the mother liquor through the mother liquor delivery pipe 6, and the mother liquor flows freely downward along the inside of the heat source jacket shell 1. At the same time, the scraper 44 pushes the mother liquor to form a thin film layer on the inner wall of the heat source jacket shell 1.

[0043] The working principle and use process of the present invention are as follows: the mother liquid is transported from the mother liquid transport pipe 6 into the interior of the heat source jacket shell 1, the driving mechanism 5 is started, and the driving mechanism 5 drives the stirring rod 41 to drive the scraper 44 to rotate, so as to push the mother liquid away from the inner wall of the heat source jacket shell 1, so that the mother liquid evaporates in the heat source jacket shell 1, and the steam is discharged from the steam discharge pipe 7. After the evaporation is completed, the driving mechanism 5 is stopped, and the threaded locking buckle 10 is removed from the tail end of the stirring rod 41, and the first adjustment rod 46 is pulled to move outward. At this time, the first adjustment rod 46 will pull the second adjustment rod 47 and the third adjustment rod 48 to expand in sequence. When the heat source jacket shell 1 is opened, the slider 42 will be pulled to move synchronously, so that the scraper 44 will be unfolded and distributed linearly inside the heat source jacket shell 1. At the same time, the extension plate 49 will fill the gaps between the scrapers 44 to increase the working area of ​​the scraper 44. Then the driving mechanism 5 will be started to make the scraper 44 push the residue inside the heat source jacket shell 1, so that the residue falls along the inside of the heat source jacket shell 1 to the discharge bin 81, and then the discharge valve 83 is pulled open by the right-angle telescopic rod 82 to make the residue fall from the discharge bin 81 into the air lock discharger 9, and the residue is discharged through the air lock discharger 9, so that the vacuum inside the heat source jacket shell 1 will not be destroyed.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A batch type negative pressure discharge horizontal conical scraper type mother liquid dryer, comprising a heat source jacket shell (1), characterized in that: The heat source jacket shell (1) is fixedly connected to a top cover (2) and a bottom cover (3) at both ends thereof, a stirring mechanism (4) is arranged inside the heat source jacket shell (1), a driving mechanism (5) is fixedly connected to the middle of the top cover (2), a mother liquid delivery pipeline (6) is fixedly connected to the side of the top cover (2), a steam discharge pipeline (7) is fixedly connected to the side of the bottom cover (3), a discharge mechanism (8) is fixedly connected to the bottom of the heat source jacket shell (1), a gas lock discharger (9) is fixedly connected to the bottom of the discharge mechanism (8), and a threaded locking buckle (10) is clamped at one end of the stirring mechanism (4); The stirring mechanism (4) comprises a stirring rod (41), two groups of sliders (42) are linearly distributed inside the stirring rod (41), a side of the sliders (42) away from each other is fixedly connected to a limiting slider (43), and a side of the limiting slider (43) away from the sliders (42) is fixedly connected to a scraper (44); The stirring mechanism (4) further comprises a limiting groove (45) formed on the slider (42); the upper and lower sides of the cross section of the stirring rod (41) are parallel to the upper and lower sides of the cross section of the heat source jacket shell (1); a first adjustment rod (46), a second adjustment rod (47) and a third adjustment rod (48) are slidably connected to the middle of the stirring rod (41); an extension plate (49) is extended from one end of the scraper (44) toward the driving mechanism (5); the first adjustment rod (46) is slidably connected to the second adjustment rod (47); the second adjustment rod (47) is located between the first adjustment rod (46) and the third adjustment rod (48) and is slidably connected to the third adjustment rod (48); The scraper (44) passes through the stirring rod (41) and extends to the interior of the heat source jacket shell (1), corresponding to the internal shape of the heat source jacket shell (1). The scrapers (44) are equidistant from each other. An opening corresponding to the extension plate (49) is provided at one end of the scraper (44) away from the driving mechanism (5). The first adjustment rod (46), the second adjustment rod (47) and the third adjustment rod (48) are respectively engaged with the corresponding limit grooves (45). A fixed head is provided at one end of the first adjustment rod (46) away from the second adjustment rod (47) and extends to the outside of the bottom cover (3). The third adjustment rod (48) is away from the driving mechanism (5). One end of the second adjustment rod (47) is slidably connected to the stirring rod (41); the first adjustment rod (46) pushes the second adjustment rod (47) to move forward; the second adjustment rod (47) pushes the third adjustment rod (48) to move forward until the third adjustment rod (48) abuts against the stirring rod (41); when the first adjustment rod (46) moves, the slider (42) moves synchronously, and the slider (42) retracts inward along the inner groove of the stirring rod (41), so that the scraper (44) and the inner wall of the heat source jacket shell (1) keep moving parallel to each other, until the scrapers (44) abut against each other, and the extension plate (49) is inserted into the corresponding opening; The fixed head on the first adjustment rod (46) is clamped with the threaded locking buckle (10), and the threaded locking buckle (10) is fixedly clamped with the stirring rod (41); The discharge mechanism (8) comprises a discharge bin (81), a right-angle telescopic rod (82) being fixedly connected inside the discharge bin (81), a discharge valve (83) being fixedly connected to the output end of the right-angle telescopic rod (82), a sealing member (84) being provided at the top of the discharge valve (83), and a blocking block (85) being provided inside the discharge bin (81).

2. The sequential batch negative pressure discharge horizontal conical scraper mother liquid dryer according to claim 1, characterized in that: The cross section of the heat source jacket shell (1) is in a transverse trapezoidal shape; the top cover (2) is located at an end of the heat source jacket shell (1) having a smaller diameter; the bottom cover (3) is located at an end of the heat source jacket shell (1) having a larger diameter; the top cover (2) and the bottom cover (3) are rotatably connected to a stirring mechanism (4); and the driving mechanism (5) is fixedly connected to the stirring mechanism (4).

3. The sequential batch negative pressure discharging horizontal conical scraper mother liquid dryer according to claim 1, characterized in that: The mother liquid delivery pipeline (6) is located on the upper side of the driving mechanism (5), the steam exhaust pipeline (7) is located on the upper side of the stirring mechanism (4), the steam exhaust pipeline (7) is externally connected to a steam filter, and the discharge mechanism (8) is located at the bottom of the heat source jacket shell (1).

4. The sequential batch negative pressure discharge horizontal conical scraper mother liquid dryer according to claim 1, characterized in that: The discharge valve (83) is slidably connected to the inside of the discharge bin (81), the discharge bin (81) is fixedly connected to the heat source jacket shell (1), and the discharge bin (81) is communicated with the inside of the heat source jacket shell (1), the top of the discharge valve (83) is in contact with the blocking block (85), the discharge valve (83) is clamped inside the blocking block (85), and the bottom of the discharge bin (81) is fixedly connected to the air-locking discharger (9), and the heat source jacket shell (1) and the air-locking discharger (9) are communicated.

5. The sequential batch negative pressure discharging horizontal conical scraper mother liquid dryer according to claim 1, characterized in that: When the stirring rod (41) rotates, the mother liquid delivery pipe (6) delivers the mother liquid, allowing the mother liquid to flow freely downward along the inside of the heat source jacket shell (1), while the scraper (44) pushes the mother liquid to form a thin film layer on the inner wall of the heat source jacket shell (1).

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