A device for removing impurities from a red pigment extracted from traditional Chinese medicine

Abstract

The application discloses a kind of equipment for removing impurity color for traditional Chinese medicine extraction red pigment, including box and support column, support column is fixedly installed at the bottom four corners of box;The driving device for providing power for removing impurity color equipment is fixedly installed at the left lower side of box;Box includes the outer box of liquid reactant and the inner box of solid reactant, the inner box is rotatably connected in the inside of outer box, and the output end of driving device is drivingly connected with inner box;The advantages of the present application are that: the box of the device adopts the two-layer design of solid-liquid separation inner box and outer box, the inner box adopts the sieve-like structure without cover at the upper end, the liquid in the outer box is convenient to enter the inner box, the reaction is more sufficient, and it is convenient for solid-liquid separation;Driving device provides power for the shaking of inner box in outer box, so that the liquid in outer box and the solid in inner box are in full contact, and the reaction speed is accelerated.

Description

Technical Field

[0001] This invention relates to the field of plant pigment extraction technology, and in particular to a device for removing impurities when extracting red pigment from traditional Chinese medicine. Background Technology

[0002] Madder, derived from the rhizome of a plant in the Rubiaceae family, is known as a "green" dye. Madder is also a medicinal material. Medical evidence shows that it has the effects of relieving cough, asthma, and killing bacteria. It also has a fragrant aroma. However, the pigments obtained by general madder extraction contain a lot of impurities, making it difficult to obtain the pure pigments needed.

[0003] For example, Chinese patent application CN212504681U discloses a natural pigment extraction device. The device feeds the product into the raw material inlet, which is then conveyed to the adjustment mechanism through the first conveying mechanism. After being cleaned and dried, the product is crushed by the crushing mechanism and finally conveyed to the extraction device for extraction. This device has a complex structure, and the crushed raw material is discharged with the liquid, which can easily cause blockage of the discharge pipe and is inconvenient to clean.

[0004] Therefore, there is an urgent need for a new type of equipment for removing impurities when extracting red pigments from traditional Chinese medicine, in order to meet the process requirements of pigment extraction. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for removing impurities when extracting red pigment from traditional Chinese medicine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for removing impurities from the extraction of red pigment from traditional Chinese medicine includes a box and support columns. The support columns are fixedly installed at the four corners of the bottom of the box, and the box is a hollow tetrahedral structure.

[0008] Preferably, a lid is detachably installed on the top of the box to seal the box; a drive device for providing power to the color removal equipment is fixedly installed on the lower left side of the box; a discharge device for discharging waste is fixedly installed on the lower right side of the box; a condensation device for recovering gas is fixedly installed on the lid; cleaning devices for cleaning the internal space of the box are fixedly installed on both sides of the condensation device and fixedly installed on the lid; a liquid feeding device for adding liquid reactants is fixedly installed between the cleaning devices and fixedly installed on the lid; a heating device for providing temperature to the reactants contained in the box and a temperature monitoring device for monitoring the internal temperature of the box are fixedly installed on the side wall of the box.

[0009] Preferably, the housing includes an outer housing for holding liquid reactants and an inner housing for holding solid reactants. The inner housing is rotatably connected to the inside of the outer housing, and the output end of the drive device passes through the outer housing and is connected to the inner housing in a transmission engagement.

[0010] Preferably, the bottom of the outer casing is a sloping structure with one end higher than the other, and the inner casing is a sieve-like structure with no cover at the top.

[0011] Preferably, a U-shaped groove that does not penetrate the side wall of the outer casing is provided at the upper middle position of the left and right ends of the outer casing, and the two ends of the inner casing are rotatably connected in the U-shaped groove.

[0012] Preferably, the inner box includes a rectangular groove, a support shaft, a first lifting lug, and a through hole; the rectangular groove is opened at the lower end of the left and right side walls of the inner box; the support shaft is a cylindrical structure, the support shaft is fixedly installed on the first lifting lug, and the support shaft is rotatably connected in the U-shaped groove; the first lifting lug is fixedly installed in the middle of the left and right side walls of the inner box; and through holes are opened on all four sides of the inner box.

[0013] Preferably, a second lifting lug is fixedly installed on the box cover, and the second lifting lug is symmetrically fixedly installed on the left and right ends of the box cover.

[0014] Preferably, the condensation device includes a condenser, an outlet, an inlet, a recycling bin, and a condenser tube. The condenser is fixedly installed on the crossbar of the condenser tube. The outlet is located at the upper part of the condenser and away from the recycling bin. The inlet is located at the lower part of the condenser and close to the recycling bin. The inlet of the condenser tube passes through the cover and extends into the box body. The outlet of the condenser tube is detachably installed on the recycling bin.

[0015] Preferably, the driving device includes a motor, a belt, a first transmission roller, a second transmission roller, a transmission shaft, rollers, and a transmission rod. The transmission shaft passes through the side wall of the outer housing and is rotatably connected to the side wall of the outer housing. The first transmission roller is fixedly connected to one end of the transmission shaft located outside the outer housing. The second transmission roller is fixedly connected to the output end of the motor. The first transmission roller and the second transmission roller are rotatably connected via a belt. The transmission rod is perpendicular to the axis of the transmission shaft and is fixedly connected to one end of the transmission shaft located inside the outer housing. The transmission rod performs circular motion in a rectangular groove on the inner housing. The roller is rotatably connected to the end of the transmission rod away from the transmission shaft. The roller performs circular motion in the rectangular groove on the inner housing along with the transmission rod, and the roller only contacts the two sides of the rectangular groove.

[0016] Preferably, the liquid feeding device includes a hopper cover and a conical feeding hopper. The hopper cover is detachably mounted on the upper end of the conical feeding hopper, the conical feeding hopper is fixedly mounted on the box cover, and the lower end of the conical feeding hopper extends through the box cover into the box body.

[0017] Preferably, the cleaning device includes a water inlet pipe and a spray head. The water inlet pipe is fixedly connected to the upper end of the spray head, the spray head is fixedly installed on the box cover, and the water outlet of the spray head is located inside the box.

[0018] Preferably, the discharge device includes a discharge pipe and a valve. The discharge pipe passes through the side wall of the outer casing and is fixedly installed on the lower side of the outer casing. The valve is adjustablely installed on the discharge pipe.

[0019] Beneficial effects

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In this invention, the device adopts a two-layer design of inner and outer casings for solid-liquid separation, and the bottom of the outer casing adopts a slope design with one end higher and the other end lower to facilitate the discharge of liquid inside the outer casing.

[0022] 2. In this invention, the inner chamber adopts a sieve-like structure with no top cover, which facilitates the entry of liquid from the outer chamber into the inner chamber, making the reaction more complete and facilitating solid-liquid separation.

[0023] 3. In this invention, the driving device provides power for the inner box to shake inside the outer box, so that the liquid inside the outer box and the solid inside the inner box can fully contact each other and accelerate the reaction speed.

[0024] 4. In this invention, the condensation device collects the gas produced by the reaction, preventing the gas produced by the reaction from being directly emitted into the air and causing pollution. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0026] Figure 1 This invention provides a three-dimensional apparatus for removing impurities from the extraction of red pigments from traditional Chinese medicine. Figure 1 ;

[0027] Figure 2 This is a front view of a device for removing impurities from the extraction of red pigment from traditional Chinese medicine, as proposed in this invention.

[0028] Figure 3 This invention provides a three-dimensional apparatus for removing impurities from the extraction of red pigments from traditional Chinese medicine. Figure 2 ;

[0029] Figure 4The present invention proposes a device for removing impurities in the extraction of red pigment from traditional Chinese medicine. Figure 2 A sectional view along the AA direction;

[0030] Figure 5 This is a left view of a device for removing impurities from the extraction of red pigment from traditional Chinese medicine, as proposed in this invention.

[0031] Figure 6 The present invention proposes a device for removing impurities in the extraction of red pigment from traditional Chinese medicine. Figure 5 A cross-sectional view at point BB.

[0032] The following is an explanation of the labeling in the attached figures:

[0033] 1. Box body; 11. Outer box body; 111. U-shaped groove; 12. Inner box body; 121. Rectangular groove; 122. Support shaft; 123. First lifting lug; 124. Through hole; 2. Box cover; 21. Second lifting lug; 3. Condensation device; 31. Condenser; 32. Water outlet; 33. Water inlet; 34. Recycling bin; 35. Condensation pipe; 4. Drive device; 41. Motor; 42. Belt; 43. First transmission roller; 44. Second transmission roller; 45. Drive shaft; 46. Roller; 47. Transmission rod; 5. Liquid feeding device; 51. Hopper cover; 52. Conical feeding hopper; 6. Cleaning device; 61. Water inlet pipe; 62. Spray head; 7. Discharge device; 71. Discharge pipe; 72. Valve; 8. Support column; 9. Heating device; 91. Heating pipe; 10. Temperature monitoring device; 101. Temperature sensor. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Example 1

[0037] Please refer to the instruction manual appendix. Figure 1-6 A device for removing impurities from the extraction of red pigment from traditional Chinese medicine includes a housing 1 and support columns 8. The support columns 8 are fixedly installed at the four corners of the bottom of the housing 1. The housing 1 is a hollow tetrahedral structure.

[0038] A lid 2, which seals the box 1, is detachably installed on the top of the box 1; a drive device 4, which provides power to the impurity removal equipment, is fixedly installed on the lower left side of the box 1; a discharge device 7, which discharges waste material, is fixedly installed on the lower right side of the box 1; a condenser 3, which recovers gas, is fixedly installed on the lid 2; a cleaning device 6, which is fixedly installed on the lid 2 on both sides of the condenser 3, is used to clean the internal space of the box 1; a liquid feeding device 5, which is fixedly installed on the lid 2, is used to add liquid reactants between the cleaning devices 6; a heating device 9, which provides temperature for the reactants contained in the box 1, and a temperature monitoring device 10, which monitors the internal temperature of the box 1, are fixedly installed on the side wall of the box 1.

[0039] The housing 1 includes an outer housing 11 for holding liquid reactants and an inner housing 12 for holding solid reactants. The inner housing 12 is rotatably connected to the inside of the outer housing 11. The output end of the drive device 4 passes through the outer housing 11 and is connected to the inner housing 12 in a transmission cooperation.

[0040] In use, open the cover 2 installed on the chamber 1, put the solid reactants into the chamber 1, and then close the cover 2. Then, add the liquid reactants from the liquid feeding device 5, turn on the heating device 9, and at the same time, the drive device 4 works until the reaction is complete. When the required reaction temperature is reached, the temperature monitoring device 10 is activated, the heating device 9 stops heating, and the temperature is kept constant. The vapor generated by the reaction enters the condensing device 3 and is condensed into a liquid state for recovery, avoiding direct emission of gas into the air and causing pollution. After the reaction is completed, turn off the heating device 9, open the discharge device 7, and discharge the liquid in the chamber 1. After the liquid in the chamber 1 is discharged, turn on the cleaning device 6 to rinse the chamber 1. After rinsing, turn off the drive device 4 and the cleaning device 6.

[0041] The bottom of the outer casing 11 is a sloping structure with one end higher than the other, which facilitates the discharge of liquid inside the outer casing 11. The inner casing 12 is a sieve-like structure with no cover at the top.

[0042] The upper middle part of the left and right ends of the outer box 11 is provided with a U-shaped groove 111 that does not penetrate the side wall of the outer box 11, and the two ends of the inner box 12 are rotatably connected in the U-shaped groove 111.

[0043] The inner box 12 includes a rectangular groove 121, a support shaft 122, a first lifting lug 123, and a through hole 124. The rectangular groove 121 is located at the lower end of the left and right side walls of the inner box 12. The support shaft 122 is a cylindrical structure and is fixedly installed on the first lifting lug 123. The support shaft 122 is rotatably connected to the U-shaped groove 111. The first lifting lug 123 is fixedly installed in the middle of the left and right side walls of the inner box 12. Through holes 124 are provided on all four sides of the inner box 12.

[0044] In use, the support shaft 122, which is installed on the inner box 12 and fixed on the first lifting lug 123, is aligned with the U-shaped grooves 111 on both sides of the outer box 11. The inner box 12 is rotatably installed on the outer box 11. The liquid reactants in the outer box 11 enter the inner box 12 through the through hole 124 and react with the solid reactants in the inner box 12.

[0045] A second lifting lug 21 is fixedly installed on the lid 2. The second lifting lug 21 is symmetrically fixedly installed on the left and right ends of the lid 2.

[0046] When in use, pull the second lifting lug 21 to open the lid 2 that is mounted on the box body 1.

[0047] Example 2

[0048] Please refer to the instruction manual appendix. Figure 1-6 The difference between this embodiment and embodiment 1 is that the condensing device 3 includes a condenser 31, a water outlet 32, a water inlet 33, a recycling tank 34, and a condensing pipe 35. The condenser 31 is fixedly installed on the crossbar of the condensing pipe 35. The water outlet 32 ​​is located at the upper part of the condenser 31 and at the end away from the recycling tank 34. The water inlet 33 is located at the lower part of the condenser 31 and at the end close to the recycling tank 34. The inlet of the condensing pipe 35 passes through the tank cover 2 and extends into the tank body 1. The outlet of the condensing pipe 35 is detachably installed on the recycling tank 34.

[0049] During use, the gas generated by the reaction inside the chamber 1 enters the condenser 31 through the inlet of the condenser pipe 35 that extends into the chamber 1. Cooling water flows in from the inlet 33, passes through the condenser 31, and flows out from the outlet 32. The cooling water flowing through the condenser 31 condenses the gas inside the condenser 31 into liquid, which then flows through the condenser pipe 35 into the recovery tank 34 for recycling, thus preventing the gas from being directly released into the air and causing pollution.

[0050] Example 3

[0051] Please refer to the instruction manual appendix. Figure 1-6This embodiment differs from Embodiments 1 and 2 in that the drive device 4 includes a motor 41, a belt 42, a first transmission roller 43, a second transmission roller 44, a drive shaft 45, a roller 46, and a drive rod 47. The drive shaft 45 passes through the side wall of the outer housing 11 and is rotatably connected to it. The first transmission roller 43 is fixedly connected to one end of the drive shaft 45 located outside the outer housing 11. The second transmission roller 44 is fixedly connected to the output end of the motor 41. The first transmission roller 43 and the second transmission roller 47 are connected to each other. The moving roller 44 is rotatably connected via belt 42. The transmission rod 47 is perpendicular to the axis of the transmission shaft 45 and is fixedly connected to one end of the transmission shaft 45 located inside the outer housing 11. The transmission rod 47 makes circular motion in the rectangular groove 121 on the inner housing 12. The roller 46 is rotatably connected to the end of the transmission rod 47 away from the transmission shaft 45. The roller 46 makes circular motion in the rectangular groove 121 on the inner housing 12 along with the transmission rod 47, and the roller 46 only contacts the two sides of the rectangular groove 121.

[0052] In use, the motor 41 is turned on, and the motor 41 drives the second transmission roller 44 to rotate. The second transmission roller 44 drives the first transmission roller 43 to rotate via the belt 42. The first transmission roller 43 drives the transmission shaft 45 to rotate. The transmission shaft 45 drives the roller 46, which is rotatably connected to the transmission rod 47, to make circular motion within the rectangular groove 121. Since the roller 46 only contacts the two sides of the rectangular groove 121, when the roller 46 contacts the left side of the rectangular groove 121, the transmission rod 47 drives the roller 46 to press the left side of the rectangular groove 121 and rotate around the support shaft 122 of the inner box 12. That is, the transmission rod 47 pushes the inner box 12 to rotate around the support shaft 122. 22 is the axis of rotation. When the transmission rod 47 is horizontal, the inner box 12 rotates to the highest position. When the transmission rod 47 rotates from the horizontal direction to the vertical direction, the inner box 12 gradually rotates back to the initial state with the transmission rod 47. Similarly, when the transmission rod 47 contacts the right side of the rectangular groove 121, the inner box 12 rotates back to the highest position with the transmission rod 47 about the support shaft 122 and then gradually rotates back to the initial state. This cycle is repeated, so that the transmission rod 47 pushes the inner box 12 to shake about the support shaft 122, so that the solid reactants in the inner box 12 can fully contact the liquid reactants in the outer box 11, thereby accelerating the reaction rate.

[0053] The liquid feeding device 5 includes a hopper cover 51 and a conical feeding hopper 52. The hopper cover 51 is detachably mounted on the upper end of the conical feeding hopper 52. The conical feeding hopper 52 is fixedly mounted on the box cover 2. The lower end of the conical feeding hopper 52 passes through the box cover 2 and extends into the box body 1.

[0054] When in use, open the hopper cover 51 and add the liquid reactant into the conical feeding hopper 52. The liquid reactant enters the box 1 through the conical feeding hopper 52. After the addition is completed, close the hopper cover 51.

[0055] The cleaning device 6 includes a water inlet pipe 61 and a spray head 62. The water inlet pipe 61 is fixedly connected to the upper end of the spray head 62. The spray head 62 is fixedly installed on the box cover 2, and the water outlet of the spray head 62 is located inside the box body 1.

[0056] When in use, clean water enters the spray head 62 through the water inlet pipe 61, and the spray head 62 sprays clean water into the inside of the box 1 to clean the box.

[0057] The discharge device 7 includes a discharge pipe 71 and a valve 72. The discharge pipe 71 passes through the side wall of the outer housing 11 and is fixedly installed on the lower side of the outer housing 11. The valve 72 is adjustablely installed on the discharge pipe 71.

[0058] When in use, after the reaction in the chamber 1 is completed, open valve 72 and the liquid in the chamber 1 will be discharged through discharge pipe 71.

[0059] The heating device 9 includes a heating tube 91, which is fixedly installed on the side wall of the outer casing 11 and located at the inner bottom of the outer casing 11.

[0060] When heating is required, the heating tube 91 of the heating device 9 operates to heat the liquid inside the box 1.

[0061] The temperature monitoring device 10 includes a temperature sensor 101, which is fixedly installed on the side wall of the outer casing 11 and located at the inner bottom of the outer casing 11.

[0062] When the liquid temperature inside chamber 1 reaches the specified requirement, the temperature sensor 101 sends a signal back to the heating device 9. The heating tube 91 of the heating device 9 stops heating and maintains a constant temperature, so that the solid reactants and liquid reactants inside chamber 1 can fully react at the required temperature, resulting in a more thorough reaction.

[0063] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for removing impurities from the extraction of red pigment from traditional Chinese medicine, comprising a housing (1) and support columns (8), wherein the support columns (8) are fixedly installed at the four corners of the bottom of the housing (1), and the housing (1) is a hollow tetrahedral structure, characterized in that: A box cover (2) is detachably installed on the top of the box (1) to seal the box (1); a drive device (4) for providing power to the impurity removal equipment is fixedly installed on the lower left side of the box (1); a discharge device (7) for discharging waste is fixedly installed on the lower right side of the box (1); a condenser device (3) for recovering gas is fixedly installed on the box cover (2); a cleaning device (6) for cleaning the internal space of the box (1) is fixed on both sides of the condenser device (3); a liquid feeding device (5) for adding liquid reactants is fixed on the box cover (2) between the cleaning devices (6); a heating device (9) for providing temperature to the reactants contained in the box (1) and a temperature monitoring device (10) for monitoring the internal temperature of the box (1) are fixedly installed on the side wall of the box (1); The box (1) includes an outer box (11) for holding liquid reactants and an inner box (12) for holding solid reactants. The inner box (12) is rotatably connected to the inside of the outer box (11). The output end of the drive device (4) passes through the outer box (11) and is connected to the inner box (12) in a transmission cooperation. The outer box (11) is characterized by having a sloping structure with one end high and the other end low, and the inner box (12) is a sieve-like structure with no cover at the top. The upper middle part of the left and right ends of the outer box (11) is provided with a U-shaped groove (111) that does not penetrate the side wall of the outer box (11), and the two ends of the inner box (12) are rotatably connected in the U-shaped groove (111). The inner box (12) includes a rectangular groove (121), a support shaft (122), a first lifting lug (123), and a through hole (124); the rectangular groove (121) is opened at the lower end of the left and right side walls of the inner box (12); the support shaft (122) is a cylindrical structure, and the support shaft (122) is fixedly installed on the first lifting lug (123), and the support shaft (122) is rotatably connected in the U-shaped groove (111); the first lifting lug (123) is fixedly installed in the middle of the left and right side walls of the inner box (12); the inner box (12) has through holes (124) on all four sides. The drive unit (4) includes a motor (41), a belt (42), a first transmission roller (43), a second transmission roller (44), a drive shaft (45), a roller (46), and a drive rod (47). The drive shaft (45) passes through the side wall of the outer casing (11) and is rotatably connected to the side wall of the outer casing (11). The first transmission roller (43) is fixedly connected to one end of the drive shaft (45) located outside the outer casing (11). The second transmission roller (44) is fixedly connected to the output end of the motor (41). The first transmission roller (43) and the second transmission roller (44) are connected by a belt (45). 42) Rotary connection, the transmission rod (47) is perpendicular to the axis of the transmission shaft (45), and the transmission rod (47) is fixedly connected to one end of the transmission shaft (45) located inside the outer box (11). The transmission rod (47) makes circular motion in the rectangular groove (121) on the inner box (12). The roller (46) is rotatably connected to the end of the transmission rod (47) away from the transmission shaft (45). The roller (46) makes circular motion in the rectangular groove (121) on the inner box (12) along with the transmission rod (47), and the roller (46) only contacts the two sides of the rectangular groove (121).

2. The device for removing impurities from the extraction of red pigment from traditional Chinese medicine according to claim 1, characterized in that: The box cover (2) is fixedly installed with a second lifting lug (21), which is symmetrically fixedly installed on the left and right ends of the box cover (2).

3. The device for removing impurities from the extraction of red pigment from traditional Chinese medicine according to claim 2, characterized in that: The condensation device (3) includes a condenser (31), an outlet (32), an inlet (33), a recycling bin (34), and a condenser pipe (35). The condenser (31) is fixedly installed on the crossbar of the condenser pipe (35). The outlet (32) is located at the upper part of the condenser (31) and at one end away from the recycling bin (34). The inlet (33) is located at the lower part of the condenser (31) and at one end close to the recycling bin (34). The inlet of the condenser pipe (35) passes through the cover (2) and extends into the box body (1). The outlet of the condenser pipe (35) is detachably installed on the recycling bin (34).

4. The device for removing impurities from the extraction of red pigment from traditional Chinese medicine according to claim 3, characterized in that: The liquid feeding device (5) includes a hopper cover (51) and a conical feeding hopper (52). The hopper cover (51) is detachably mounted on the upper end of the conical feeding hopper (52). The conical feeding hopper (52) is fixedly mounted on the box cover (2). The lower end of the conical feeding hopper (52) passes through the box cover (2) and extends into the box body (1).

5. The device for removing impurities from the extraction of red pigment from traditional Chinese medicine according to claim 4, characterized in that: The cleaning device (6) includes a water inlet pipe (61) and a spray head (62). The water inlet pipe (61) is fixedly connected to the upper end of the spray head (62). The spray head (62) is fixedly installed on the box cover (2), and the water outlet of the spray head (62) is located inside the box body (1).

6. The device for removing impurities from the extraction of red pigment from traditional Chinese medicine according to claim 5, characterized in that: The discharge device (7) includes a discharge pipe (71) and a valve (72). The discharge pipe (71) passes through the side wall of the outer casing (11) and is fixedly installed on the lower side of the outer casing (11). The valve (72) is adjustablely installed on the discharge pipe (71).

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