Plant fiber raw material main hydrolysate precipitation separation device

Abstract

The utility model discloses a precipitation separation device for a main hydrolysate of a plant fiber raw material. Comprising a shell, a rotary stirring paddle positioned in the shell, a rotating shaft for assembling and connecting the rotary stirring paddle, and a rotating driver positioned outside the shell and used for driving the rotating shaft to drive the rotary stirring paddle to rotate together, wherein at least one end of the rotating shaft penetrates out of the shell. The shell is provided with a main hydrolysate inlet, a precipitant inlet and a precipitant outlet, the shell comprises an upper shell and a lower shell which are hermetically matched, the lower shell comprises at least one of a first lower shell and a second lower shell which can be opened and closed, and the first lower shell and the second lower shell are hermetically matched when being closed. And a plurality of rotary stirring paddles are arranged in the axial direction of the rotating shaft at intervals. According to the precipitation separation device for the main hydrolysate of the plant fiber raw materials, the sugar-acid separation efficiency can be improved, and solid precipitates can be conveniently separated from the shell so as to achieve the purpose of automatic discharging.

Description

Technical Field

[0001] The utility model relates to a separation machine used for the main hydrolysis of plant fiber raw materials, in particular to a main hydrolysis precipitation separation device for plant fiber raw materials. Background Art

[0002] At present, the methods for hydrolyzing cellulose into sugars mainly include dilute acid method, concentrated acid method and enzyme method, for example, the method of preparing a main hydrolyzate by hydrolyzing plant fiber raw materials with concentrated sulfuric acid disclosed in Chinese Patent Application No. 200710030294.2, and the method of recovering sulfuric acid in the concentrated sulfuric acid hydrolyzate of plant fiber raw materials disclosed in Chinese Patent Application No. 200810145571.9.

[0003] Among them, the method of preparing a main hydrolyzate by hydrolyzing plant fiber raw materials with concentrated sulfuric acid disclosed in Chinese Patent Application No. 200710030294.2 solves the problem of preparing the main hydrolyzate; the method of recovering sulfuric acid from a concentrated sulfuric acid hydrolyzate of plant fiber raw materials disclosed in Chinese Patent Application No. 200810145571.9 solves the problem of separating sugar and acid in the main hydrolyzate.

[0004] However, the main hydrolyzate will be precipitated as solid after the sugar-acid separation process. The precipitated solid has the defect of being troublesome to discharge. In addition, the separation efficiency of sugar-acid is low.

[0005] Therefore, there is an urgent need for a plant fiber raw material main hydrolysis precipitation separation device to overcome the above-mentioned defects. Utility Model Content

[0006] The utility model aims to provide a main hydrolysis precipitation separation device for plant fiber raw materials, so as to improve the sugar-acid separation efficiency and facilitate the separation of solid precipitation from the shell to realize automatic material unloading.

[0007] In order to achieve the above-mentioned purpose, the main hydrolyzate precipitation and separation device of plant fiber raw material of the utility model comprises a shell, a rotating stirring paddle located in the shell, a rotating shaft for the rotating stirring paddle to be assembled and connected and at least one end of which passes through the shell, and a rotating driver located outside the shell and used to drive the rotating shaft to drive the rotating stirring paddle to rotate together. The shell is provided with a main hydrolyzate inlet, a precipitant inlet and a precipitant outlet. The shell comprises a sealed upper shell and a lower shell. The lower shell comprises a first lower shell and a second lower shell, at least one of which can be opened and closed. The first lower shell and the second lower shell are sealed when closed. The rotating stirring paddle is a plurality of paddles arranged spaced apart from each other in the axial direction of the rotating shaft.

[0008] Compared with the prior art, in the process of separating sugar and acid, the rotating shaft is driven by the rotating driver, so that the rotating shaft drives the rotating stirring paddle to rotate together during the rotation process, and the rotating rotating stirring paddle stirs the main hydrolyzate entering the shell from the main hydrolyzate inlet, thereby improving the efficiency of sulfuric acid in the main hydrolyzate entering the precipitant and flowing out from the precipitant outlet and the main hydrolyzate forming precipitated solids. At the same time, in the process of unloading the precipitated solids, the matching part of the first lower shell and the second lower shell is opened, and the rotating stirring paddle in the rotating motion separates the precipitated solids from the shell to realize automatic unloading. Therefore, the main hydrolysis precipitation separation device for plant fiber raw materials of the utility model can improve the efficiency of sugar and acid separation, and also facilitate the separation of solid precipitates from the shell to realize automatic unloading.

[0009] Preferably, a slide structure is provided between the upper shell and the first lower shell and / or the second lower shell that performs opening and closing movements; the main hydrolyzate inlet is located at the top of the upper shell, the precipitant inlet is located on the first lower shell, the precipitant outlet is located on the second lower shell, and the rotating shaft passes through the fitting point of the upper shell and the lower shell.

[0010] Preferably, the plant fiber raw material main hydrolyzate precipitation and separation device of the utility model further comprises an opening and closing driver located outside the shell, and the first lower shell and / or the second lower shell that performs the opening and closing movement each corresponds to the opening and closing driver.

[0011] Preferably, the plant fiber raw material main hydrolyzate precipitation and separation device of the utility model further comprises an opening and closing cover which is arranged at the upper shell and can perform opening and closing movements.

[0012] Preferably, the opening and closing cover is a telescopic cover, and the first lower shell and / or the second lower shell that perform opening and closing movements each correspond to the telescopic cover, and the first lower shell and / or the second lower shell that perform opening and closing movements are each assembled and connected to one side of the corresponding telescopic cover, and the other side of the telescopic cover is assembled and connected to the top of the upper shell; or, the plant fiber raw material main hydrolyzate precipitation and separation device also includes an opening and closing drive located outside the shell and used to drive the opening and closing cover to perform opening and closing movements.

[0013] Preferably, a plurality of fixed stirring paddles spaced apart from each other along the axial direction of the rotating shaft are fixed in the housing, the fixed stirring paddles and the rotating stirring paddles are arranged alternately, and the fixed stirring paddles also partially overlap with the rotating stirring paddles along the radial direction of the rotating shaft.

[0014] Preferably, the rotating shaft includes a first rotating shaft and a second rotating shaft which are arranged side by side and are spaced apart from each other and are transmission-connected, each of the first rotating shaft and the second rotating shaft is equipped with the rotating stirring paddle, and the first lower shell and the second lower shell can each perform opening and closing movements relative to the upper shell.

[0015] Preferably, the rotating stirring paddles on the first rotating shaft and the rotating stirring paddles on the second rotating shaft are arranged alternately, and the rotating stirring paddles on the first rotating shaft also partially overlap with the rotating stirring paddles on the second rotating shaft in the parallel direction of the first rotating shaft and the second rotating shaft.

[0016] Preferably, a plurality of fixed stirring paddles fixed in the shell and separated from each other along the axial direction of the rotating shaft are arranged on the sides of the first rotating shaft and / or the second rotating shaft, the rotating stirring paddles on the first rotating shaft are arranged alternately with the corresponding fixed stirring paddles, and the rotating stirring paddles on the first rotating shaft also partially overlap with the corresponding fixed stirring paddles in the side-by-side direction of the first rotating shaft and the second rotating shaft; the rotating stirring paddles on the second rotating shaft are arranged alternately with the corresponding fixed stirring paddles, and the rotating stirring paddles on the second rotating shaft also partially overlap with the corresponding fixed stirring paddles in the side-by-side direction of the first rotating shaft and the second rotating shaft.

[0017] Preferably, the rotating stirring paddle on the first rotating shaft and the rotating stirring paddle on the second rotating shaft are spaced apart from each other in the parallel direction of the first rotating shaft and the second rotating shaft, a fixing seat is fixed in the shell and is located between the rotating stirring paddle on the first rotating shaft and the rotating stirring paddle on the second rotating shaft, and a plurality of fixed stirring paddles installed on the fixing seat and spaced apart from each other along the axial direction of the rotating shaft are arranged on the side of the first rotating shaft and / or the second rotating shaft, the rotating stirring paddle on the first rotating shaft is alternately arranged with the corresponding fixed stirring paddle, and the rotating stirring paddle on the first rotating shaft also partially overlaps with the corresponding fixed stirring paddle in the parallel direction of the first rotating shaft and the second rotating shaft; the rotating stirring paddle on the second rotating shaft is alternately arranged with the corresponding fixed stirring paddle, and the rotating stirring paddle on the second rotating shaft also partially overlaps with the corresponding fixed stirring paddle in the parallel direction of the first rotating shaft and the second rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a plan view of the sedimentation and separation device for the main hydrolyzate of plant fiber raw materials according to the first embodiment of the utility model.

[0019] Figure 2 yes Figure 1 The shown plant fiber raw material main hydrolyzate precipitation separation device is a plan view viewed along the direction indicated by arrow A.

[0020] Figure 3 is along Figure 1 Interior view cut through the centerline and looking down.

[0021] Figure 4 yes Figure 1 The shown diagram is a transversely cut internal view of a plant fiber raw material main hydrolyzate sedimentation and separation device.

[0022] Figure 5 yes Figure 2 A plan view of the slide structure when viewed from another angle.

[0023] Figure 6 It is a plan view of the plant fiber raw material main hydrolyzate precipitation and separation device of the second embodiment of the utility model along the axial direction of the rotating shaft and viewed from the side facing away from the rotating drive.

[0024] Figure 7 This is a transversely cut internal view of the plant fiber raw material main hydrolyzate precipitation and separation device of the second embodiment of the utility model.

[0025] Figure 8 It is a plan view of the plant fiber raw material main hydrolyzate precipitation and separation device of the third embodiment of the utility model along the axial direction of the rotating shaft and viewed from the side facing away from the rotating drive.

[0026] Fig. 9 It is a plan view of the plant fiber raw material main hydrolyzate precipitation and separation device of the third embodiment of the utility model along the axial direction of the rotating shaft and viewed from the side facing the rotating drive.

[0027] Fig.10 It is a transversely cut internal view of the plant fiber raw material main hydrolyzate precipitation and separation device of the third embodiment of the utility model.

[0028] Fig.11 This is an internal view of the plant fiber raw material main hydrolyzate precipitation and separation device of the third embodiment of the utility model, which is cut by a plane passing through the axis lines of the first rotating shaft and the second rotating shaft and viewed downward.

[0029] Fig.12 is Figure 8 The above diagram shows a state diagram when the first lower shell, the second lower shell and the opening and closing cover are all in the open state.

[0030] Fig.13 It is a plan view of the plant fiber raw material main hydrolyzate precipitation and separation device of the fourth embodiment of the utility model along the axial direction of the rotating shaft and viewed from the side facing away from the rotating drive.

[0031] Fig.14 is Fig.13 The above diagram shows a state diagram when the cover is in the open state.

[0032] Fig.15 It is a plan view of the plant fiber raw material main hydrolyzate precipitation and separation device of the fifth embodiment of the utility model along the axial direction of the rotating shaft and viewed from the side facing away from the rotating drive.

[0033] Fig.16This is a transversely cut internal view of the plant fiber raw material main hydrolyzate precipitation and separation device of the fifth embodiment of the utility model.

[0034] Fig.17 This is an internal view of the plant fiber raw material main hydrolyzate precipitation and separation device of the fifth embodiment of the utility model, which is cut by a plane passing through the axis lines of the first rotating shaft and the second rotating shaft and viewed downward.

[0035] Fig.18 Yes Fig.16 A deformation graph undergoing deformation.

[0036] Fig.19 yes Fig.18 An internal view cut by a plane passing through the axis lines of both the first rotating shaft and the second rotating shaft and viewed downward. DETAILED DESCRIPTION

[0037] Embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals represent like elements.

[0038] See also Figure 1 to Figure 2 The first embodiment of the plant fiber raw material main hydrolyzate precipitation separation device 100 includes a housing 10, a rotating stirring blade 20 located in the housing 10 (see Figure 3 ), a rotating shaft 30 for assembling and connecting the rotating stirring paddle 20 and passing through the housing 10 at both ends, and a rotating driver 40 located outside the housing 10 and used to drive the rotating shaft 30 to drive the rotating stirring paddle 20 to rotate together, optionally, Figure 1 and Figure 3 As an example, the rotary driver 40 is a rotary motor with a reducer, so that the rotary motor can output a larger torque through the reducer; obviously, according to actual needs, the rotary driver 40 can also be a rotary motor without a reducer, so it is not limited to this.

[0039] At the same time, combined Figure 3 The rotating stirring paddles 20 are arranged in a plurality of spaces in the axial direction of the rotating shaft 30 to meet the need for the rotating stirring paddles 20 to stir the liquid at various positions in the housing 10. Optionally, Figure 4 In the embodiment, as an example, the rotating stirring paddle 20 is a four-blade paddle mounted on the rotating shaft 30. Obviously, according to actual needs, it can also be a two-blade paddle, a three-blade paddle or a five-blade paddle. Figure 4 Limits shown.

[0040] Furthermore, the shell 10 is provided with a main hydrolyzed liquid inlet 11, a precipitant inlet 12 and a precipitant outlet 13, and the shell 10 includes an upper shell 10a and a lower shell 10b that are sealed together. The lower shell 10b includes a first lower shell 10b1 and a second lower shell 10b2, and the second lower shell 10b2 can be opened and closed to meet the requirement that the second lower shell 10b2 can be opened and closed relative to the first lower shell 10b1, and the second lower shell 10b2 and the first lower shell 10b1 are sealed together when closed to prevent the main hydrolyzed liquid etc. entering the shell 10 from leaking from the fitting point 10b3 between the first lower shell 10b1 and the second lower shell 10b2; obviously, in other embodiments, the first lower shell 10b1 can also be opened and closed, so it is not necessary to use the above method. Figure 2 and Figure 4 Specifically, in combination with Figure 2 , Figure 4 and Figure 5 As an example, a slideway structure 50 is provided between the upper housing 10a and the second lower housing 10b2 that performs opening and closing movements, so that the opening and closing movements of the second lower housing 10b2 are more stable and smoother by means of the slideway structure 50. More specifically, as follows:

[0041] like Figure 2 and Figure 4 As shown, as an example, the main hydrolyzate inlet 11 is located at the top of the upper shell 10a, so that the main hydrolyzate is injected into the shell 10 from the top of the shell 10; the precipitant inlet 12 is located on the first lower shell 10b1, and the precipitant outlet 13 is located on the second lower shell 10b2, so as to meet the need that the precipitant enters from one side of the shell 10 and flows out from the other side; the rotating shaft 30 passes through the matching part 10c of the upper shell 10a and the lower shell 10b, so as to facilitate the assembly and disassembly operation of the rotating shaft 30 on the shell 10. Specifically, Figure 1 and Figure 3 As an example, the lower housing 10b is provided with bearing seats 35 on both sides separated in the axial direction of the rotating shaft 30 (i.e., the direction indicated by arrow A and the opposite direction), and the rotating shaft 30 is correspondingly assembled on the bearing seats 35 to improve the smoothness and stability of the rotation of the rotating shaft 30; of course, according to actual needs, the assembly method of the rotating shaft 30 can also be other, so it is not used in this example. Figure 1 and Figure 3 Limits shown.

[0042] like Figure 2 and Figure 4As shown, as an example, the plant fiber raw material main hydrolyzate precipitation and separation device 100a of the first embodiment also includes an opening and closing driver 60 located outside the shell 10, and the second lower shell 10b2 that performs opening and closing movements corresponds to the opening and closing driver 60, and the opening and closing driver 60 drives the second lower shell 10b2 to perform opening and closing movements, thereby achieving the purpose of automatic opening and closing of the second lower shell 10b2; optionally, as an example, the opening and closing driver 60 can be a cylinder or a hydraulic cylinder, etc., but is not limited to this.

[0043] Another example Figure 2 and Figure 4 As shown, as an example, the plant fiber raw material main hydrolyzate precipitation and separation device 100a of the first embodiment also includes an opening and closing cover 70 arranged at the upper shell 10a and capable of opening and closing movements. Optionally, as an example, the opening and closing cover 70 is a telescopic cover, and the second lower shell 10b2 that performs opening and closing movements corresponds to the telescopic cover 70. The second lower shell 10b2 that performs opening and closing movements is assembled and connected to one side of the corresponding telescopic cover 70, and the other side of the telescopic cover 70 is assembled and connected to the top of the upper shell 10a. The purpose of such a design is to utilize the second lower shell 10b2 to realize the opening and closing movement of the opening and closing cover 70 during the opening and closing movement, thereby reducing the use of power source.

[0044] like Figure 3 As shown, as an example, a plurality of fixed stirring paddles 91 are fixed in the housing 10 and are separated from each other along the axial direction of the rotating shaft 30. The fixed stirring paddles 91 and the rotating stirring paddles 20 are arranged alternately, and the fixed stirring paddles 91 also partially overlap with the rotating stirring paddles 20 along the radial direction of the rotating shaft 30. This design allows the fixed stirring paddles 91 and the rotating stirring paddles 20 to jointly form a structure with a shearing function, thereby further improving the stirring effect. Specifically, Figure 4 As an example, the fixed stirring paddle 91 is located on the second lower shell 10b2 of the shell 10; obviously, according to actual needs, the fixed stirring paddle 91 can also be located on the first lower shell 10b1 or the upper shell 10a of the shell 10, so it is not necessary to Figure 4 Limits shown.

[0045] It should be noted that although Figure 1 and Figure 3 It is shown that both ends of the rotating shaft 30 pass through the housing 10. Obviously, according to actual needs, only one end of the rotating shaft 30 can pass through the housing 10, and the rotating driver 40 can drive the end of the rotating shaft 30 passing through the housing 10. In addition, since the housing 10 needs to be injected with the main hydrolyzate of plant fiber raw materials and the precipitant during operation, the penetration fitting point of the rotating shaft 30 and the housing 10 needs to be sealed.

[0046] In addition, combined Figures 1 to 5, the working principle of the plant fiber raw material main hydrolyzate precipitation separation device 100a of the first embodiment is described:

[0047] First, the opening and closing driver 60 drives the second lower shell 10b2 to move to a position closed with the first lower shell 10b1, and the opening and closing cover 70 moves together with the second lower shell 10b2 and switches to a closed position.

[0048] Next, the rotary driver 40 is operated, and the operating rotary driver 40 drives the rotating shaft 30 to rotate together with the rotating stirring blade 20 .

[0049] Then, the precipitant enters the shell 10 from the precipitant inlet 12 and flows out from the precipitant outlet 13, while the main hydrolyzate enters the shell 10a from the main hydrolyzate inlet 11; after a certain period of stirring, the sulfuric acid in the main hydrolyzate enters the precipitant and the main hydrolyzate forms a precipitate.

[0050] Finally, the opening and closing driver 60 drives the second lower shell 10b2 to move to an open position relative to the first lower shell 10b1, and the opening and closing cover 70 moves with the second lower shell 10b2 and switches to an open position. Under the stirring of the rotating stirring paddle 20, the precipitated solids are pushed out of the lower shell 10b and leave the shell 10a device to complete the discharging, thus realizing a workflow.

[0051] See also Figure 6 and Figure 7 The structures of the plant fiber raw material main hydrolyzate precipitation and separation device 100b of the second embodiment are basically the same as the plant fiber raw material main hydrolyzate precipitation and separation device 100a of the first embodiment, and the differences are as follows:

[0052] In the plant fiber raw material main hydrolyzate precipitation separation device 100b of the second embodiment, both the first lower shell 10b1 and the second lower shell 10b2 can perform opening and closing movements. Correspondingly, both the first lower shell 10b1 and the second lower shell 10b2 have corresponding opening and closing drivers 60 to satisfy the first lower shell 10b1 and the second lower shell 10b2 being driven by the corresponding opening and closing drivers 60 to perform opening and closing movements. This design makes it easier for the precipitated solids to be removed from the lower shell 10b under the stirring of the rotating stirring paddle 20. In the plant fiber raw material main hydrolyzate precipitation separation device 100a of the first embodiment, it is the second lower shell 10b2 that performs the opening and closing movements, so the second lower shell 10b2 has corresponding opening and closing drivers 60.

[0053] In the second embodiment of the plant fiber raw material main hydrolyzate separation device 100b, the first lower shell 10b1 and the second lower shell 10b2 each have a corresponding opening and closing cover 70. In the first embodiment of the plant fiber raw material main hydrolyzate separation device 100a, the second lower shell 10b2 has a corresponding opening and closing cover 70.

[0054] In the plant fiber raw material main hydrolyzate precipitation separation device 100b of the second embodiment, the fixed stirring paddle 91 is located on the first lower shell 10b1. In the plant fiber raw material main hydrolyzate precipitation separation device 100a of the first embodiment, the fixed stirring paddle 91 is located on the second lower shell 10b2.

[0055] In the plant fiber raw material main hydrolyzate precipitation separation device 100b of the second embodiment, since both the first lower shell 10b1 and the second lower shell 10b2 can perform opening and closing movements, in order to improve the smoothness and stability of the movement, the first lower shell 10b1 and the second lower shell 10b2 each have a corresponding slideway structure 50. In the plant fiber raw material main hydrolyzate precipitation separation device 100a of the first embodiment, only the second lower shell 10b2 has a corresponding slideway structure 50.

[0056] Apart from the above differences, the other two are the same, so I will not go into details here.

[0057] See also Figures 8 to 12 The structures of the plant fiber raw material main hydrolyzate precipitation separation device 100c of the third embodiment and the plant fiber raw material main hydrolyzate precipitation separation device 100b of the second embodiment are basically the same, and the differences are as follows:

[0058] In the plant fiber raw material main hydrolyzate precipitation separation device 100c of the third embodiment, the rotating shaft 30 includes a first rotating shaft 31 and a second rotating shaft 32 which are arranged side by side and transmission-connected with each other, and each of the first rotating shaft 31 and the second rotating shaft 32 is equipped with a rotating stirring paddle 20; the rotating stirring paddle 20 on the first rotating shaft 31 and the rotating stirring paddle 20 on the second rotating shaft 32 are arranged alternately, and the rotating stirring paddle 20 on the first rotating shaft 31 also partially overlaps with the rotating stirring paddle 20 on the second rotating shaft 32 in the parallel direction of the first rotating shaft 31 and the second rotating shaft 321 (i.e., the direction indicated by arrow B), so that the rotating stirring paddles 20 on the first rotating shaft 31 and the second rotating shaft 32 together form a structure with a shearing function. In the plant fiber raw material main hydrolyzate precipitation separation device 100b of the second embodiment, the rotating shaft 30 is a single shaft, and the rotating stirring paddle 20 on the rotating shaft 30 and the fixed stirring paddle 91 on the housing 10 together form a structure with a shearing function.

[0059] In the plant fiber raw material main hydrolyzate precipitation separation device 100c of the third embodiment, since the first rotating shaft 31 and the second rotating shaft 32 are connected by transmission, a driving gear 33 located outside the housing 10 is installed on the first rotating shaft 31 and a driven gear 34 located outside the housing 10 is installed on the second rotating shaft 32, and the driven gear 34 is meshed with the driving gear 33; of course, according to actual needs, a belt drive or a chain drive can also be used, so it is not necessary to use the first rotating shaft 31 or the second rotating shaft 32. Fig. 9 and Fig.11 In the plant fiber raw material main hydrolyzate precipitation separation device 100b of the second embodiment, since the rotating shaft 30 is a single shaft, it is not necessary to configure the driving gear 33 and the driven gear 34.

[0060] Apart from the above differences, the other two are the same, so I will not go into details here.

[0061] See also Fig.13 and Fig.14 The structures of the plant fiber raw material main hydrolyzate precipitation and separation device 100d of the fourth embodiment and the plant fiber raw material main hydrolyzate precipitation and separation device 100c of the third embodiment are basically the same, and the differences are as follows:

[0062] In the sedimentation and separation device 100d for the main hydrolyzate of plant fiber raw materials of the fourth embodiment, the opening and closing cover 70' is not a telescopic cover. Correspondingly, the sedimentation and separation device 100d for the main hydrolyzate of plant fiber raw materials of the fourth embodiment also includes an opening and closing drive 80 located outside the shell 10 and used to drive the opening and closing cover 70' to perform an opening and closing movement; optionally, as an example, the opening and closing drive 80 is a cylinder or a hydraulic cylinder, etc., but is not limited to this.

[0063] In the plant fiber raw material main hydrolyzate precipitation separation device 100c of the third embodiment, its opening and closing cover 70 is a telescopic cover.

[0064] Apart from the above differences, the other two are the same, so I will not go into details here.

[0065] See also Figures 15 to 17 The structures of the plant fiber raw material main hydrolyzate precipitation and separation device 100e of the fifth embodiment and the plant fiber raw material main hydrolyzate precipitation and separation device 100c of the third embodiment are basically the same, and the differences are as follows:

[0066] In the plant fiber raw material main hydrolyzate precipitation separation device 100e of the fifth embodiment, a plurality of fixed stirring paddles 91 fixed in the shell 10 and separated from each other along the axial direction of the rotating shaft 30 are arranged on the sides of the first rotating shaft 31 and the second rotating shaft 32. The rotating stirring paddles 20 on the first rotating shaft 31 are arranged alternately with the corresponding fixed stirring paddles 91, and the rotating stirring paddles 20 on the first rotating shaft 31 also partially overlap with the corresponding fixed stirring paddles 91 in the side-by-side direction of the first rotating shaft 31 and the second rotating shaft 32 (see arrow B); the rotating stirring paddles 20 on the second rotating shaft 32 are arranged alternately with the corresponding fixed stirring paddles 91, and the rotating stirring paddles 20 on the second rotating shaft 32 also partially overlap with the corresponding fixed stirring paddles 91 in the side-by-side direction of the first rotating shaft 31 and the second rotating shaft 32, as shown in FIG. Fig.16 and Fig.17In the plant fiber raw material main hydrolyzate precipitation separation device 100c of the third embodiment, the rotating stirring paddles 20 on the first rotating shaft 31 and the rotating stirring paddles 20 on the second rotating shaft 32 are arranged alternately, and the rotating stirring paddles 20 on the first rotating shaft 31 also partially overlap with the rotating stirring paddles 20 on the second rotating shaft 32 in the parallel direction of the first rotating shaft 31 and the second rotating shaft 321 (i.e., the direction indicated by arrow B).

[0067] Except for the above differences, the other two are the same, so I will not go into details here. Fig.17 It is shown that the first lower shell 10b1 and the second lower shell 10b2 of the shell 10 are each fixed with a fixed stirring paddle 91. Obviously, according to actual needs, only the first lower shell 10b1 or the second lower shell 10b2 of the shell 10 can be fixed with a fixed stirring paddle 91; when the first lower shell 10b1 and the second lower shell 10b2 are each fixed with a fixed stirring paddle 91, the rotating stirring paddle 20 on the first rotating shaft 31 and the rotating stirring paddle 20 on the second rotating shaft 32 can be separated in the parallel direction of the first rotating shaft 31 and the second rotating shaft 32, as shown in the state Fig.17 Of course, the rotating stirring paddle 20 on the first rotating shaft 31 and the rotating stirring paddle 20 on the second rotating shaft 32 may also overlap partially in the parallel direction of the first rotating shaft 31 and the second rotating shaft 32, so it is not necessary to Fig.17 Limits shown.

[0068] See also Fig.18 and Fig.19 , which is a variation of the plant fiber raw material main hydrolyzate precipitation separation device 100e of the fifth embodiment. Fig.18 and Fig.19 In the embodiment, the rotating stirring paddle 20 on the first rotating shaft 31 and the rotating stirring paddle 20 on the second rotating shaft 32 are separated from each other in the parallel direction of the first rotating shaft 31 and the second rotating shaft 32. A fixing seat 92 is fixed in the housing 10 and is located between the rotating stirring paddle 20 on the first rotating shaft 31 and the rotating stirring paddle 20 on the second rotating shaft 32. At this time, the fixed stirring paddle 91 corresponding to the first rotating shaft 31 and the second rotating shaft 32 is installed on the fixing seat 92; the fixed stirring paddle 91 on the fixing seat 92 is arranged between the first rotating shaft 31 and the second rotating shaft 32 through the fixing seat 92. It should be noted that although Fig.18 and Fig.19 The first rotating shaft 31 and the second rotating shaft 32 shown in the figure each correspond to a fixed stirring paddle 91. Obviously, according to actual needs, only the first rotating shaft 31 or the second rotating shaft 32 may correspond to a fixed stirring paddle 91. Fig.18 and Fig.19 Limits shown.

[0069] Compared with the prior art, in the process of separating sugar and acid, the rotating shaft 30 is driven by the rotating driver 40, so that the rotating shaft 30 drives the rotating stirring paddle 20 to rotate together during the rotation process, and the rotating rotating stirring paddle 20 stirs the main hydrolyzed liquid entering the shell 10 from the main hydrolyzed liquid inlet 11, thereby improving the efficiency of sulfuric acid in the main hydrolyzed liquid entering the precipitant and flowing away from the precipitant outlet 13 and the main hydrolyzed liquid forming precipitated solids. At the same time, in the process of discharging the precipitated solids, the matching part 10b3 of the first lower shell 10b1 and the second lower shell 10b2 is opened, and the rotating stirring paddle 20 of the rotating motion separates the precipitated solids from the shell 10 to realize automatic discharging. Therefore, the main hydrolysis precipitation separation device 100a (100b, 100c, 100d, 100e) of the plant fiber raw material of the utility model can improve the efficiency of sugar and acid separation, and also facilitate the separation of solid precipitation from the shell 10 to realize automatic discharging.

[0070] However, this cannot be used to limit the scope of rights of the present utility model. Therefore, equivalent changes made according to the scope of the patent application of the present utility model are still within the scope covered by the present utility model.

Claims

1. A precipitation and separation device for main hydrolyzate of plant fiber raw materials, characterized in that: The invention comprises a shell, a rotating stirring paddle located in the shell, a rotating shaft for assembling and connecting the rotating stirring paddle and having at least one end passing through the shell, and a rotating driver located outside the shell and used for driving the rotating shaft to drive the rotating stirring paddle to rotate together. The shell is provided with a main hydrolyzate inlet, a precipitant inlet and a precipitant outlet. The shell comprises a sealed upper shell and a lower shell. The lower shell comprises a first lower shell and a second lower shell, at least one of which can perform opening and closing movements. The first lower shell and the second lower shell are sealed when closed. The rotating stirring paddle is a plurality of paddles arranged spaced apart from each other in the axial direction of the rotating shaft.

2. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 1, characterized in that: A slide structure is provided between the upper shell and the first lower shell and / or the second lower shell that performs opening and closing movements; the main hydrolyzate inlet is located at the top of the upper shell, the precipitant inlet is located on the first lower shell, the precipitant outlet is located on the second lower shell, and the rotating shaft passes through the fitting position of the upper shell and the lower shell.

3. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 1, characterized in that: It also includes an opening and closing driver located outside the shell, and the first lower shell and / or the second lower shell that performs opening and closing movements each corresponds to the opening and closing driver.

4. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 1, characterized in that: It also includes an opening and closing cover which is arranged at the upper shell and can perform opening and closing movements.

5. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 4, characterized in that: The opening and closing cover is a telescopic cover, and the first lower shell and / or the second lower shell that perform opening and closing movements each correspond to the telescopic cover, and the first lower shell and / or the second lower shell that perform opening and closing movements are each assembled and connected to one side of the corresponding telescopic cover, and the other side of the telescopic cover is assembled and connected to the top of the upper shell; or, the plant fiber raw material main hydrolyzate precipitation and separation device also includes an opening and closing drive located outside the shell and used to drive the opening and closing cover to perform opening and closing movements.

6. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 1, characterized in that: A plurality of fixed stirring paddles spaced apart from each other along the axial direction of the rotating shaft are fixed in the housing. The fixed stirring paddles and the rotating stirring paddles are arranged alternately. The fixed stirring paddles also partially overlap with the rotating stirring paddles along the radial direction of the rotating shaft.

7. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 1, characterized in that: The rotating shaft includes a first rotating shaft and a second rotating shaft which are arranged side by side and are spaced apart from each other and are transmission-connected. Each of the first rotating shaft and the second rotating shaft is equipped with a rotating stirring paddle. The first lower shell and the second lower shell can each perform an opening and closing movement relative to the upper shell.

8. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 7, characterized in that: The rotating stirring paddles on the first rotating shaft and the rotating stirring paddles on the second rotating shaft are arranged alternately, and the rotating stirring paddles on the first rotating shaft also partially overlap with the rotating stirring paddles on the second rotating shaft in the parallel direction of the first rotating shaft and the second rotating shaft.

9. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 7, characterized in that: A plurality of fixed stirring paddles fixed in the shell and separated from each other along the axial direction of the rotating shaft are arranged on the sides of the first rotating shaft and / or the second rotating shaft. The rotating stirring paddles on the first rotating shaft are arranged alternately with the corresponding fixed stirring paddles, and the rotating stirring paddles on the first rotating shaft also partially overlap with the corresponding fixed stirring paddles in the side-by-side direction of the first rotating shaft and the second rotating shaft; the rotating stirring paddles on the second rotating shaft are arranged alternately with the corresponding fixed stirring paddles, and the rotating stirring paddles on the second rotating shaft also partially overlap with the corresponding fixed stirring paddles in the side-by-side direction of the first rotating shaft and the second rotating shaft.

10. The device for precipitation and separation of main hydrolyzate of plant fiber raw materials according to claim 7, characterized in that: The rotating stirring paddle on the first rotating shaft and the rotating stirring paddle on the second rotating shaft are spaced apart from each other in the parallel direction of the first rotating shaft and the second rotating shaft, a fixing seat is fixed in the shell and is located between the rotating stirring paddle on the first rotating shaft and the rotating stirring paddle on the second rotating shaft, and a plurality of fixed stirring paddles installed on the fixing seat and spaced apart from each other along the axial direction of the rotating shaft are arranged on the side of the first rotating shaft and / or the second rotating shaft, the rotating stirring paddle on the first rotating shaft is alternately arranged with the corresponding fixed stirring paddle, and the rotating stirring paddle on the first rotating shaft also partially overlaps with the corresponding fixed stirring paddle in the parallel direction of the first rotating shaft and the second rotating shaft; the rotating stirring paddle on the second rotating shaft is alternately arranged with the corresponding fixed stirring paddle, and the rotating stirring paddle on the second rotating shaft also partially overlaps with the corresponding fixed stirring paddle in the parallel direction of the first rotating shaft and the second rotating shaft.

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