Dissolving accelerating device

Abstract

The utility model relates to the technical field of dissolving devices, in particular to an accelerated dissolving device, which comprises a dissolving component, a stirring component, a stirring component and a stirring component, the stirring assembly is partially located in the reaction box and comprises a driving machine, a driving disc connected with a clamping groove of the driving machine, a rotating cylinder and a heating rod which are fixedly connected with the driving disc, and a flushing part fixedly connected with the rotating cylinder. Through rotation and horizontal stirring of the stirring assembly in the reaction box, the contact area between a dissolving solution and dissolved matter is increased, and meanwhile, the heating rod is assisted, so that the effects of increasing the dissolving speed and improving the dissolving efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dissolution devices, in particular to an accelerating dissolution device. Background Art

[0002] With the increasingly severe national environmental protection situation, the environmental protection emission indexes such as sulfur dioxide, nitrogen oxides and heavy metal indexes such as mercury shall not exceed the national emission limits. Therefore, the application of desulfurization, denitrification and mercury removal catalysts to catalyze the emissions to meet the standards has become the first choice of many enterprises, saving a large amount of equipment transformation funds for many enterprises, and having remarkable economic and social benefits.

[0003] The desulfurization, denitrification and mercury removal catalyst is not easy to dissolve during use, and sometimes there is a phenomenon of material caking, resulting in a slow drug effect of the added desulfurization, denitrification and mercury removal catalyst, and then a slow reaction speed and high consumption of the desulfurization, denitrification and mercury removal catalyst, thus reducing the overall efficiency of the production line. At this time, an accelerating dissolution device is needed to accelerate the reaction speed of the catalyst, reduce consumption and improve the production line efficiency. The current accelerating dissolution devices often only increase the contact area with the catalyst through the one-way rotational movement of the liquid during dissolution to accelerate dissolution, with a single method and low efficiency.

[0004] Based on the above technical problems, we propose an accelerating dissolution device. Summary of the Utility Model

[0005] In view of the technical problem that the current accelerating dissolution devices often only increase the contact area with the catalyst through the one-way rotational movement of the liquid during dissolution, with a single method and low efficiency, the accelerating dissolution device in the present utility model is proposed.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: an accelerating dissolution device, which includes a dissolution component, including a reaction tank and a liquid discharging member detachably connected to the reaction tank;

[0007] a stirring component, part of the stirring component is located inside the reaction tank, including a driving machine, a driving disk connected to the driving machine in a card slot manner, a rotating cylinder fixedly connected to the driving disk, and a flushing member fixedly connected to the rotating cylinder.

[0008] As a preferred scheme of the accelerating dissolution device of the present utility model, wherein: the flushing member includes a reciprocating lead screw fixedly connected to the inner wall of the rotating cylinder and a reciprocating disk slidably connected to the reciprocating lead screw;

[0009] Among them, a circumferential through groove is provided in the reciprocating disk, injection ports are circumferentially arrayed on the outer wall of the reciprocating disk, the circumferential through groove is communicated with the injection ports, a reciprocating sliding groove and a sliding groove avoiding the circumferential through groove are provided on the reciprocating disk, and at the same time, a water inlet and a telescopic hose fixedly connected to the water inlet are also provided on the reciprocating disk.

[0010] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: first filtrate holes are homogeneously circumferentially arrayed on the circumferential surface of the rotating cylinder, and four fixing holes are circumferentially arrayed on the end surface of the rotating cylinder.

[0011] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: the reaction tank includes a gasket detachably connected to the outer side wall of the reaction tank, a water pump is arranged on the outer surface of the gasket, a sliding rod is fixedly connected to the surface of the gasket located inside the reaction tank, a protruding clamping block is arranged at the upper end of the reaction tank, the reaction tank is detachably installed with a tank cover through the protruding clamping block, and a supporting member is fixedly connected to the outer wall of the reaction tank, and a plurality of positioning holes are circumferentially arrayed on the outer side wall of the reaction tank.

[0012] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: liquid injection funnels are symmetrically provided on the tank cover, and a recessed clamping groove is arranged on the tank cover, and the recessed clamping groove is snap-connected with the protruding clamping block.

[0013] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: the liquid discharging member includes a collecting box, a flow intercepting plate is detachably connected to the top of the collecting box, and a discharging pipe is fixedly connected to the bottom of the collecting box.

[0014] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: a liquid taking port and a liquid sending port are arranged on the gasket, a liquid taking pipe and a liquid sending pipe are fixedly connected to the water pump, the liquid taking port is detachably and tightly connected with the liquid taking pipe, and the liquid sending port is detachably and tightly connected with the liquid sending pipe.

[0015] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: a circular groove is provided on the gasket, the circular groove is rotationally connected with the rotating cylinder through a bearing, a plurality of positioning columns are circumferentially arrayed on the surface of the gasket, and the positioning columns are inserted into the positioning holes.

[0016] As a preferred solution of the accelerating dissolution device of the present utility model, wherein: a first bearing is fixedly connected to the circumference of the driving disk, four fixing seats are fixedly connected to the circumferential array on the contact surface of the driving disk and the rotating cylinder, and heating rods are fixedly connected to the fixing seats.

[0017] As a preferred embodiment of the accelerating dissolution device of the present utility model, wherein: a plurality of first screw holes are provided on the collection box, bolts are installed in the first screw holes, a plurality of second screw holes are correspondingly provided on the reaction box, and the first screw holes and the second screw holes are detachably connected by the bolts; a plurality of second filtrate holes are provided on the intercepting plate.

[0018] The beneficial effects of the present utility model are as follows: by the rotation and horizontal stirring of the stirring assembly inside the reaction box, the contact area between the dissolution liquid and the substance to be dissolved is increased, and at the same time, supplemented by a heating rod, the effect of increasing its dissolution speed and improving the dissolution efficiency is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0020] Figure 1 It is a schematic diagram of the overall connection structure of the accelerating dissolution device in the present utility model.

[0021] Figure 2 It is a sectional axonometric view of the accelerating dissolution device in the present utility model.

[0022] Figure 3 It is a schematic diagram of the accelerating dissolution device in the present utility model, that is Figure 2 An enlarged schematic diagram of the structure at part "A" inside.

[0023] Figure 4 It is a top view of the overall accelerating dissolution device in the present utility model.

[0024] Figure 5 It is a schematic diagram of the connection structure of the accelerating dissolution device in the present utility model, that is Figure 4 A sectional schematic diagram of the structure at part "B - B" inside.

[0025] Figure 6 It is a schematic diagram of the connection structure of the accelerating dissolution device in the present utility model, that is Figure 4 A sectional schematic diagram of the structure at part "C - C" inside.

[0026] Figure 7 It is a schematic diagram of the stirring assembly in the accelerating dissolution device of the present utility model.

[0027] Figure 8 It is a schematic diagram of the liquid discharging part in the accelerating dissolution device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings of the specification.

[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, referring to Figures 1 to 8 , which is the first embodiment of the present utility model. This embodiment provides an accelerating dissolution device, the dissolution component 100 of which is box-shaped and serves as the reaction carrier of the entire accelerating dissolution device. It includes a reaction tank 101 and a liquid discharging member 102. The three cooperate together to carry the dissolution liquid. The stirring component 200 serves as the reaction acceleration component of the entire device, which can effectively increase the dissolution speed and improve the dissolution efficiency.

[0032] Specifically, the dissolution assembly 100 includes a reaction tank 101 and a drain member 102 detachably connected to the reaction tank 101. The reaction tank 101 is a cavity with holes on all four sides. The drain member 102 is detachably connected to the bottom surface of the reaction tank 101 by bolts and can ensure relative sealing, so that the liquid will not leak during the process of flowing from the inside of the reaction tank 101 to the inside of the drain member 102. After the liquid is mixed with the material to be dissolved in the reaction tank 101 to accelerate dissolution, it enters the inside of the drain member 102 and then is discharged into the required container. Part of the stirring assembly 200 is located inside the reaction tank 101. The stirring assembly 200 and the reaction tank 101 are rotatably connected through bearings, and includes a driving machine 201 located outside the reaction tank 101. The driving machine 201 is a direct external driving member of the stirring assembly 200. The driving machine 201 is detachably connected to the card slot of the driving disc 202. The rotating cylinder 203 is located inside the reaction tank 101 and is fixedly connected to the driving disc 202 coaxially. The rotating cylinder 203 is a porous cylindrical structure, and the liquid can enter the inside of the rotating cylinder 203 and mix with the material to be dissolved placed inside the rotating cylinder 203; a flushing member 205 is fixedly connected to the inner wall of one end of the rotating cylinder 203 close to the driving disc 202. The flushing member 205 can horizontally stir the mixture inside the rotating cylinder 203, and at the same time can impact and dissolve the holes on the side wall of the rotating cylinder 203 to prevent them from being blocked. The whole movement process can be understood as follows: the driving machine 201 rotates self-driven by external force, drives the driving disc 202 to rotate through the connecting card slot, the rotating cylinder 203 fixedly connected to the driving disc 202 rotates, the internal mixture is rotationally mixed and dissolved, the flushing member 205 inside the rotating cylinder 203 works synchronously to horizontally stir the mixture, and the heating rod 204 heats the mixture to make the dissolution more thorough and sufficient.

[0033] Example 2, refer to Figures 1 to 8, which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. The difference is that the flushing member 205 is composed of two parts, namely a reciprocating lead screw 205a fixedly connected to the inner wall of the rotating cylinder 203 and a reciprocating disk 205b slidably connected to the reciprocating lead screw 205a through a chute; a sealing gasket 101a is detachably connected to the outer side wall of the reaction tank 101, and a sliding rod 101c is fixedly connected to the surface of the sealing gasket 101a located inside the reaction tank 101; the reciprocating disk 205b is a double-tube sliding disk with a hollow interior, that is, a circumferential through groove 205b-1 is provided inside. At the same time, it is restricted by the reciprocating lead screw 205a and the sliding rod 101c. A reciprocating sliding groove 205b-3 is opened at the center position of the reciprocating disk 205b, and the diameter of the reciprocating sliding groove 205b-3 matches the outer diameter of the reciprocating lead screw 205a, so that the reciprocating disk 205b can perform a reciprocating motion along the reciprocating lead screw 205a; at the same time, a sliding groove 205b-4 is also provided on the reciprocating disk 205b, and the sliding groove 205b-4 avoids other slots and only plays an auxiliary limiting role. The sliding rod 101c is slidably connected to the sliding groove 205b-4. That is, when the reciprocating lead screw 205a rotates, the sealing gasket 101a and the sliding rod 101c remain stationary, and the reciprocating disk 205b can only move along the sliding rod 101c through the sliding groove 205b-4. Under the combined action of the reciprocating lead screw 205a and the reciprocating sliding groove 205b-3, the reciprocating disk 205b performs a reciprocating motion along the horizontal direction, achieving the effect of horizontally stirring and accelerating the dissolution of the internal mixture.

[0034] Specifically, a water pump 101b is provided on the outer surface of the sealing gasket 101a. A liquid extraction port 101a-1 and a liquid delivery port 101a-2 are provided on the sealing gasket 101a. A liquid extraction pipe 101b-1 and a liquid delivery pipe 101b-2 are fixedly connected to the water pump (101b). The liquid extraction port 101a-1 is detachably and tightly connected to the liquid extraction pipe 101b-1, and the liquid delivery port 101a-2 is detachably and tightly connected to the liquid delivery pipe 101b-2; the inner diameters of the liquid extraction pipe 101b-1, the liquid delivery pipe 101b-2, the liquid extraction port 101a-1, and the liquid delivery port 101a-2 are the same, mainly playing the role of extracting the liquid inside the reaction tank 101 and pressurizing and transporting it back into the reaction tank 101, so as to perform back flushing on the rotating cylinder 203.

[0035] Furthermore, a first filtrate hole 203a is evenly and circularly arrayed on the circumferential surface of the rotating cylinder 203, and a plurality of injection ports 205b-2 are circularly arrayed on the outer wall circumference of the reciprocating disk 205b. The circumferential through groove 205b-1 is communicated with the injection port 205b-2. At the same time, a water inlet 205b-5 is also opened on the reciprocating disk 205b, and a telescopic hose 205b-6 fixedly connected to the water inlet 205b-5. The other end of the telescopic hose 205b-6 is detachably and tightly connected to the liquid delivery port 101a-2. When the water pump 101b is started, the liquid in the reaction tank 101 enters the water pump 101b through the liquid extraction port 101a-1, and then is connected to the telescopic hose 205b-6 through the liquid delivery port 101a-2. The liquid is pressurized and pumped into the telescopic hose 205b-6, and then enters the circumferential through groove 205b-1. Due to the pressure applied by the water pump 101b, the liquid is ejected in a circular column through the injection port 205b-2, impacting the first filtrate hole 203a, which can prevent the first filtrate hole 203a from being blocked, and at the same time accelerate the liquid flow rate and the dissolution speed.

[0036] Preferably, the driving disk 202 also partially passes through the rotating cylinder 203 and fixedly connects a heating rod 204 inside the rotating cylinder 203. The heating rods 204 are circularly arrayed to uniformly heat the internal mixture to accelerate its dissolution rate. Four fixing holes 203b are circularly arrayed on the circumferential surface of the end part of the rotating cylinder 203. Four fixing seats 202b are fixedly connected in a circular array on the contact surface of the driving disk 202 with the rotating cylinder 203. The fixing seats 202b are inserted into the fixing holes 203b to fix the rotating cylinder 203. At the same time, the end part of the fixing seat 202b is fixedly connected to the heating rod 204, which can heat the internal mixture in the reaction tank 101 to further accelerate the dissolution.

[0037] Example 3, referring to Figures 1 to 8 , which is the third embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that through the detachable mounting cover 101e on the reaction tank 101, the liquid injection hoppers 101e-1 symmetrically opened on the surface of the cover 101e, and the liquid discharge member 102, the liquid can be injected or filtered and discharged into the reaction tank 101, which is beneficial to the filling of the dissolved medicament. A supporting member 101f is fixedly connected to the outer wall of the bottom of the reaction tank 101. The supporting member 101f is used to support the entire dissolution assembly 100 and the stirring assembly 200, so that they can be stably placed on a plane, playing a supporting role for the driving machine 201.

[0038] Specifically, a protruding clamping block 101d is provided at the upper end of the reaction chamber 101, and a recessed clamping groove 101e-2 is provided on the lid 101e. The inner diameter of the recessed clamping groove 101e-2 is adapted to the clamping block 101d, and can be snap-connected with the clamping block 101d. Thus, the lid 101e can be conveniently disassembled and assembled; on the surface of the reaction chamber 101 in contact with the gasket 101a, a plurality of positioning holes 101g are circumferentially arrayed, and on the surface of the gasket 101a, a plurality of corresponding positioning posts 101a-4 are circumferentially arrayed. The positioning posts 101a-4 are inserted into the positioning holes 101g, thereby fixing the gasket 101a on the side wall of the reaction chamber 101 and facilitating disassembly and assembly at the same time. A circular groove 101a-3 is provided on the gasket 101a, and the circular groove 101a-3 is rotationally connected to the rotating cylinder 203 through a bearing. The driving disc 202 is rotatably connected to the opposite side wall of the reaction chamber 101 connected to the gasket 101a. The driving disc 202 is fixedly connected to the first bearing 202a circumferentially, and the outer wall of the first bearing 202a is fixedly connected to the reaction chamber 101, so that the driving disc 202 and the reaction chamber 101 are rotationally connected through the first bearing 202a.

[0039] Specifically, the liquid discharging member 102 is detachably connected to the reaction chamber 101. The liquid discharging member 102 mainly discharges the mixture inside the reaction chamber 101. The liquid discharging member 102 is adapted to the bottom size of the reaction chamber 101. Its main components include a collecting box 102a, which can collect the mixed liquid in the reaction chamber 101 for subsequent discharging; and a throttling plate 102b detachably connected to the top of the collecting box 102a. A plurality of second filtering holes 102b-1 are provided on the throttling plate 102b, and the aperture of the second filtering holes 102b-1 is smaller than that of the first filtering holes 203a, so that the substances that are not completely dissolved are filtered and left inside the reaction chamber 101 for continued dissolution; a discharging pipe 102c is fixedly connected to the bottom of the collecting box 102a to facilitate the discharge of the internal liquid.

[0040] Furthermore, a plurality of first screw holes 102a-1 are provided on the collecting box 102a, bolts 102a-2 are installed in the first screw holes 102a-1, and a plurality of corresponding second screw holes 101h are provided on the reaction chamber 101. The first screw holes 102a-1 and the second screw holes 101h are detachably connected by the bolts 102a-2, thereby fixing the collecting box 102a on the wall of the reaction chamber 101.

[0041] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (for example, changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, elements shown as integrally formed may be composed of multiple parts or elements, the positions of the elements may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any clause of "means-plus-function" is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of implementing the present utility model, or those features that are not relevant to the implementation of the present utility model).

[0043] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered by the scope of the claims of the present utility model.

Claims

1. An accelerating dissolution device, characterized in that: A dissolution component (100), comprising a reaction tank (101) and a liquid discharge member (102) detachably connected to the reaction tank (101); A stirring component (200), part of the stirring component (200) is located inside the reaction tank (101), including a driving machine (201), a driving disk (202) connected to the driving machine (201) by a card slot, a rotating cylinder (203) fixedly connected to the driving disk (202), and a flushing member (205) fixedly connected to the rotating cylinder (203).

2. The accelerated dissolution device according to claim 1, wherein: The flushing member (205) includes a reciprocating screw rod (205a) fixedly connected to the inner wall of the rotating cylinder (203) and a reciprocating disk (205b) slidably connected to the reciprocating screw rod (205a) by a chute; Wherein, a circumferential through groove (205b-1) is arranged inside the reciprocating disk (205b), injection ports (205b-2) are circumferentially arrayed on the outer wall of the reciprocating disk (205b), the circumferential through groove (205b-1) is communicated with the injection ports (205b-2), a reciprocating sliding groove (205b-3) and a sliding groove (205b-4) avoiding the circumferential through groove (205b-1) are arranged on the reciprocating disk (205b), and at the same time, a water inlet (205b-5) and a telescopic hose (205b-6) fixedly connected to the water inlet (205b-5) are arranged on the reciprocating disk (205b).

3. The accelerating dissolution device according to claim 2, wherein: First filtrate holes (203a) are evenly circumferentially arrayed on the circumferential surface of the rotating cylinder (203), and four fixing holes (203b) are circumferentially arrayed on the end surface of the rotating cylinder (203).

4. The accelerated dissolution device according to claim 1 or 3, characterized in that: The reaction tank (101) includes a sealing gasket (101a) detachably connected to the outer wall of the reaction tank (101), a water pump (101b) is arranged on the outer surface of the sealing gasket (101a), a sliding rod (101c) is fixedly connected to the surface of the sealing gasket (101a) located inside the reaction tank (101), a protruding clamping block (101d) is arranged at the upper end of the reaction tank (101), a tank cover (101e) is detachably installed on the reaction tank (101) through the protruding clamping block (101d), and a supporting member (101f) is fixedly connected to the outer wall of the reaction tank (101), and a plurality of positioning holes (101g) are circumferentially arrayed on the outer side wall of the reaction tank (101).

5. The accelerating dissolution device according to claim 4, characterized in that: Liquid injection funnels (101e-1) are symmetrically arranged on the tank cover (101e), and a recessed card slot (101e-2) is arranged on the tank cover (101e), and the recessed card slot (101e-2) is snap-connected to the protruding clamping block (101d).

6. The accelerated dissolution device according to claim 5, wherein: The liquid discharge member (102) includes a collection box (102a), a shut-off plate (102b) is detachably connected to the top of the collection box (102a), and a discharge pipe (102c) is fixedly connected to the bottom of the collection box (102a).

7. The accelerating dissolution device according to claim 6, wherein: A liquid extraction port (101a-1) and a liquid delivery port (101a-2) are provided on the gasket (101a). A liquid extraction pipe (101b-1) and a liquid delivery pipe (101b-2) are fixedly connected to the water pump (101b). The liquid extraction port (101a-1) is detachably and tightly connected to the liquid extraction pipe (101b-1), and the liquid delivery port (101a-2) is detachably and tightly connected to the liquid delivery pipe (101b-2).

8. The accelerating dissolution device according to claim 7, wherein: A circular groove (101a-3) is formed on the gasket (101a). The circular groove (101a-3) is rotationally connected to the rotating cylinder (203) by a bearing. A plurality of positioning posts (101a-4) are circumferentially arrayed on the surface of the gasket (101a), and the positioning posts (101a-4) are inserted into the positioning holes (101g).

9. The accelerating dissolution device according to claim 8, wherein: A first bearing (202a) is fixedly connected to the circumference of the driving disc (202). Four fixed seats (202b) are fixedly connected to the circumference of the contact surface between the driving disc (202) and the rotating cylinder (203). A heating rod (204) is fixedly connected to the fixed seats (202b).

10. The accelerating dissolution device according to claim 9, wherein: A plurality of first screw holes (102a-1) are provided on the collection box (102a). Bolts (102a-2) are installed in the first screw holes (102a-1). A plurality of second screw holes (101h) are correspondingly provided on the reaction box (101). The first screw holes (102a-1) and the second screw holes (101h) are detachably connected by the bolts (102a-2). A plurality of second filtrate holes (102b-1) are provided on the intercepting plate (102b).

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