A combined digester that is easy to assemble and seal

Abstract

The present invention relates to the field of calcium hydroxide production equipment, specifically a combined digester that is easy to assemble and seal, including a plurality of horizontal digestion units. Both ends and the top of the horizontal digestion unit are open. End flange strips are provided at both ends of the box body, and the end flange pads are used to dock with the ends of the box body of another horizontal digestion unit, the feed box or the discharge box; top flange strips are provided at the top of the box body, and the top flange strips are used to dock with the cover plate. A quick installation mechanism for facilitating the installation of the sealing strip is provided on the top flange strip. The present invention can be configured according to user needs and is convenient for transportation and installation.

Description

Technical Field

[0001] The present invention relates to the field of calcium hydroxide production equipment, and more specifically to a combined digester that is easy to assemble and seal. Background Art

[0002] A digester is a device that digests quicklime into lime milk and is widely used in the production of calcium hydroxide. Existing quicklime digesters are usually of an integral structure, that is, they include an integrated box body, with a feed box and a discharge box connected to the outside of the box body, and multiple stirring shafts are arranged inside.

[0003] The above-mentioned integrated box body is manufactured by a manufacturing enterprise according to conditions such as the site restrictions and production capacity requirements of users, resulting in poor adaptability of the overall digester to different users, and it is not convenient for logistics transportation and on-site installation and commissioning due to its huge volume and weight. Summary of the Invention

[0004] The present invention aims to provide a combined digester that is easy to assemble and seal, which can be configured according to user needs and is convenient for transportation and installation.

[0005] To solve the above technical problems, the specific solution adopted by the present invention is as follows: A combined digester that is easy to assemble and seal, including a plurality of horizontal digestion units. Any horizontal digestion unit has a box body, and a plurality of parallel stirring shafts are arranged at intervals along the longitudinal direction of the box body; both ends and the top of the box body are open, and end flange strips are provided at both ends of the box body, and the end flange pads are used to dock with the ends of the box bodies of other horizontal digestion units, the feed box or the discharge box;

[0006] Top flange strips are provided at the top of the box body, and the top flange strips are used to dock with the cover plate. A quick-installation mechanism for facilitating the installation of the sealing strip is provided on the top flange strip; the quick-installation mechanism includes an installation groove opened along the top of the top flange strip and retaining posts arranged at the four corner positions of the top flange strip. The installation groove is annular and is used for the sealing strip to be inserted. The retaining posts are slidably arranged vertically in the installation groove and divide the installation groove into an inner installation part and an outer positioning part. Top posts are provided at the four corner positions of the lower edge of the cover plate, and the lower end of the top post can cooperate with a retaining piece arranged at the lower end position of the retaining post to drive the retaining post to move downward during the installation process when the cover plate is pressed against the top flange strip, so that the sealing strip can enter the installation part from the positioning part under the action of external pulling force.

[0007] Preferably, a spring is sleeved at the bottom of the retaining post, the lower end of the spring is fixed to the retaining post, and the upper end is fixed to the top flange strip.

[0008] Preferably, the width of the installation part is smaller than the outer diameter of the sealing strip, and the retaining piece can be displaced under the action of external force to disengage from the top post.

[0009] Preferably, the sealing strip is an asbestos rope, the baffle is fixedly connected to the baffle column, and the baffle column is rotatably matched with the top flange strip.

[0010] Preferably, two first circular through-holes are provided on the top flange strip for the two ends of the sealing strip to pass through respectively, the two first through-holes are partially overlapped, and the inner diameters of the two first through-holes are smaller than the sealing strip.

[0011] Preferably, the ends of all stirring shafts in the box of any horizontal digestion unit extend to the outside of the box, one of the stirring shafts is a driving shaft and is directly connected to the driving member, and the remaining stirring shafts are driven shafts and are connected to the driving shaft through a pulley structure.

[0012] Preferably, it comprises a plurality of horizontal digestion units distributed in a single layer, and two horizontal digestion units located at the ends are respectively connected to a feed box and a discharge box.

[0013] Preferably, there are multiple horizontal digestion units distributed in multiple layers, two horizontal digestion units located at the ends of any layer are respectively connected to the feed box and the discharge box, and the discharge box and the feed box of adjacent layers are butted. Beneficial Effects

[0014] The present invention includes a plurality of horizontal digestion units, and the plurality of horizontal digestion units are spliced ​​together through flange strips and bolts to form a set of combined digesters. On the one hand, the volume and weight of a single horizontal digestion unit are small, so that it is convenient for logistics transportation and on-site hoisting and debugging; on the other hand, the user can flexibly select the number and stacking form of the horizontal digestion units according to their own site conditions and production capacity requirements, thereby greatly improving the applicability of the present invention.

[0015] During the packaging process of the cover plate after the debugging of a single horizontal digestion unit is completed, the installation of the sealing strip on the end flange strip at the end of the horizontal digestion unit is relatively easy because the height of the horizontal digestion unit itself is relatively small, and the sealing strip can be installed by a person standing at the end of the horizontal digestion unit. However, since the width and length of the horizontal digestion unit are relatively large, when installing the sealing strip on the top flange strip, the person needs to walk around the horizontal digestion unit or climb over the horizontal digestion unit to lay the sealing strip on the top flange strip, and then press the cover plate down to complete the packaging. Since the present invention includes multiple horizontal digestion units, the installation process of the sealing strip on the top flange strip is relatively cumbersome and creates safety hazards.

[0016] To solve the above technical problems, a quick installation mechanism is provided on the top flange strip in the present invention. The sealing strip is limited by the outside of the retaining post in the quick installation mechanism, and then after covering the cover plate, the retaining post is pressed down by the ejector post on the cover plate, so that the sealing strip can be pulled by personnel to move from the positioning part of the installation groove to the installation part, thus completing the loading of the sealing strip. Thereby, it enables personnel not to walk around the horizontal digestion unit, greatly improving the installation efficiency of the sealing strip. And in the present invention, the sealing strip is first extruded by the cover plate and then loaded in place, which can avoid the problem that the sealing strip in the existing installation method is easily touched by mistake and displaced after being first installed in place and then the cover plate is pressed, resulting in poor sealing after displacement.

[0017] In the preferred technical solution of the present invention, the width of the installation part is smaller than the outer diameter of the sealing strip, and the retaining piece can be displaced under the action of an external force to disengage from the ejector post, so that after the sealing strip is installed in place, the retaining post can be made to rebound upward and press the sealing strip by moving the retaining piece, thereby deforming the outside of the sealing strip and further ensuring the sealing effect at the position of the retaining post on the top flange strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 9 is a schematic structural diagram of Embodiment 1 of a combined digester with easy assembly and sealing according to the present invention;

[0019] Figure 2 FIG. 13 is a front view structural diagram of a single horizontal digestion unit in Embodiment 1;

[0020] Figure 3 For Figure 2 top view structural diagram;

[0021] Figure 4 FIG. 23 is a top view structural diagram of the top flange strip part in Embodiment 1;

[0022] Figure 5 FIG. 27 is a cross-sectional structural diagram of the quick installation mechanism part in Embodiment 1;

[0023] Figure 6 For Figure 5 schematic diagram of the state after the cover plate is pressed down in;

[0024] Figure 7 For the state diagram after the sealing strip in Figure 6 is pulled by personnel;

[0025] Figure 8 For the state diagram after the retaining post in Figure 7 is rotated by personnel;

[0026] Figure 9 FIG. 49 is a schematic structural diagram of Embodiment 2 of a combined digester with easy assembly and sealing according to the present invention;

[0027] Markings in the figure: 1. feed box, 2. horizontal digestion unit, 201. box body, 202. cover plate, 203. top flange strip, 204. end flange strip, 205. stirring shaft, 206. driving member, 207. bolt hole, 208. pulley structure, 3. discharge box, 4. mounting groove, 401. mounting part, 402. positioning part, 5. blocking column, 6. second through hole, 7. first through hole, 8. top column, 9. sealing strip, 10. blocking plate, 11. spring, 12. block. DETAILED DESCRIPTION

[0028] The easy-to-assemble and seal combined digester of the present invention is described below through two embodiments. Example 1

[0029] like Figure 1 As shown, a combined digester that is easy to assemble and seal in this embodiment includes four horizontal digestion units 2 distributed in a straight line. The four horizontal digestion units 2 are connected end to end in sequence. The left end of the horizontal digestion unit 2 on the left is connected to the feed box 1, and the right end of the horizontal digestion unit 2 on the right is connected to the discharge box 3, so as to realize the digestion process of quicklime entering from left to right, completing digestion and discharging.

[0030] Combination Figure 2 and Figure 3 As shown, any horizontal digestion unit 2 has a rectangular box 201, in which four stirring shafts 205 are arranged at intervals, and the ends of the stirring shafts 205 penetrate the box 201 and are provided with a pulley mechanism. One of the stirring shafts 205 serves as a driving shaft, which is directly connected to the output shaft of the driving member 206 (motor reducer assembly), and the remaining three stirring shafts 205 serve as driven shafts, which are connected to the driving shaft through a pulley structure. Thus, in a horizontal digestion unit 2, four stirring shafts 205 are driven to rotate synchronously at the same speed by a driving member 206, so as to complete the stirring and conveying of the material in its box 201.

[0031] The end of the box body 201 is open and provided with an end flange strip 204, and a bolt hole 207 is opened on the end flange strip 204. The same end flange strip 204 is also provided on the feed box 1 and the discharge box 3, that is, the ends of the box bodies 201 of adjacent horizontal digestion units 2 are connected by cooperating with the end flange strip 204 and the bolts, or the box body 201 of the horizontal digestion unit 2 is connected with the feed box 1 or the discharge box 3 accordingly.

[0032] The top of the box body 201 is open and is provided with a top flange strip 203. Bolt holes 207 are formed in the top flange strip 203. After the box body 201 is installed in place and devices such as the stirring shaft 205 inside the debugger are adjusted, the box body 201 can be connected to the cover plate 202 through the cooperation of the top flange strip 203 and bolts to complete the encapsulation. In order to avoid the cumbersome operation of personnel repeatedly walking around the box body 201 when installing the sealing strip 9 between the cover plate 202 and the top flange strip 203, a quick installation mechanism is also provided on the top flange strip 203 in this embodiment to improve work efficiency and the convenience of personnel operation. Specifically:

[0033] As Figure 4 and Figure 5 shown, the quick installation mechanism mainly includes an installation groove 4 formed in the top sealing strip 9, two first through holes 7 formed in the middle position of a short side of the top sealing strip 9, top columns 8 slidably arranged vertically at the four corner positions of the top sealing strip 9, and top columns 8 fixed at the four corner positions of the cover plate 202.

[0034] The installation groove 4 is rectangular and in a closed ring shape. The first through hole 7 is a circular hole with a diameter slightly smaller than the outer diameter of the sealing strip 9. The number is two, and the two first through holes 7 are partially overlapped, so that the sealing strip 9 passing through the two first through holes 7 is mutually extruded and deformed and is extruded and deformed by the inner edge of the first through hole 7 to realize the sealing at the first through hole 7. The position of the stop post 5 is located in the middle of the width direction of the installation groove 4, and the installation groove 4 is divided into an installation part 401 close to the center direction of the box body 201 and a positioning part 402 opposite to the center direction of the box body 201 by the stop post 5. The upper part of the stop post 5 passes out of the installation groove 4 and forms a positioning side on its outer side. The lower part of the stop post 5 passes out of the top sealing strip 9 and is fixed with a stop block 12. A stop bar is fixedly arranged on the stop block 12 in the direction opposite to the center of the box body 201; a spring 11 is sleeved on the stop post 5 between the stop block 12 and the top sealing strip 9. The upper end of the spring 11 is fixed to the top sealing strip 9, and the lower end is fixed to the stop block 12, so that the stop post 5 is maintained in the Figure 5 natural state shown. The top columns 8 and the stop posts 5 are distributed in one-to-one correspondence. A second through hole 6 for the top columns 8 to pass through is also provided on the top sealing strip 9 at a position outside the stop posts 5. After the top columns 8 pass out of the second through hole 6, they can be pressed down on the said retaining piece 10.

[0035] Based on the above structure, before the sealing cover plate 202, a person can stand at the position where the first through hole 7 is opened on the box body 201, and pass the free end of the reel-shaped sealing strip 9 (in this embodiment, an asbestos rope with certain elasticity and toughness is selected) from one of the first through holes 7 from bottom to top, and then continue to pull it, so that the passing length of the sealing strip 9 is slightly larger than the circumference of the top flange strip 203, and then pass the free end of the sealing strip 9 from top to bottom through another first through hole 7, that is, the part of the sealing strip 9 that is pulled out forms a closed ring. Then, the person can throw the ring-shaped sealing strip 9 toward the short side of the box body 201 where the first through hole 7 is not opened, so that the sealing strip 9 is distributed on the outside of the four blocking columns 5, and then pull the end of the sealing strip 9 downward to achieve the following effect. Figure 5 In the state shown, the sealing strip 9 is located in the positioning portion 402 .

[0036] Then, the top column 8 is aligned with the corresponding second through hole 6 and the cover plate 202 is pressed down to Figure 6 Status shown. Figure 6 In the state shown, the top column 8 presses down the stop column 5 through the stop sheet 10 and stretches the spring 11 to produce deformation, and the sealing strip 9 also produces a certain degree of deformation due to the pressing of the cover plate 202 to produce a sealing effect. At this time, the sealing strip 9 is still further pulled downward by the staff, such as Figure 7 As shown, the sealing strip 9 is integrally inserted into the mounting portion 401, and the inner side of the sealing strip 9 is pressed against the inner side of the mounting portion 401 to further deform to further improve the sealing effect. Thus, the sealing strip 9 is located inside the stop column 5 to prevent the material in the box 201 from leaking from the stop column 5.

[0037] In addition, the width of the mounting portion 401 in this embodiment is smaller than the outer diameter of the sealing strip 9, and the blocking column 5 can be rotatably matched with the top flange strip 203. Figure 7 After the blocking column 5 in the Figure 8 As shown, the baffle 10 is offset from the top column 8, and the upper end of the baffle column 5 moves upward under the restoring tension of the spring 11 and further squeezes the sealing strip 9 inward to deform, thereby further improving the sealing effect of the baffle columns 5 located at the four corners of the top flange strip 203. Example 2

[0038] This embodiment also has a plurality of horizontal digestion units 2 that are the same as those in the embodiment 1, and the horizontal digestion units 2 are also provided with the same quick-install mechanism as that in the embodiment 1. Figure 9As shown, this embodiment has multiple horizontal digestion units 2 with a multi-layer distribution. Among them, the upper layer has four horizontal digestion units 2, which are connected to the feed box 1 on the right and the discharge box 3 on the left; the lower layer has seven horizontal digestion units 2, which are connected to the feed box 1 on the left and the discharge box 3 on the right, and the upper discharge box 3 and the lower feed box 1 are connected vertically, so that the material passes through all the horizontal digestion units 2 in a zigzag direction. Compared with Embodiment 1, in this embodiment, the stacking method is adopted, which makes full use of the site space and improves the material processing capacity.

Claims

1. A modular digester that is easy to assemble and seal, characterized in that: The invention comprises a plurality of horizontal digestion units (2), each of which has a box body (201), in which a plurality of parallel stirring shafts (205) are arranged at intervals along the longitudinal direction of the box body (201); both ends and the top of the box body (201) are open, and the ends of the box body (201) are provided with end flange strips (204), and the end flange gaskets are used to dock with the ends of the box body (201) of another horizontal digestion unit (2), a feed box (1) or a discharge box (3); and the top of the box body (201) is provided with a top flange strip (203). ), the top flange strip (203) is used to dock with the cover plate (202), and a quick-installation mechanism is provided on the top flange strip (203) for facilitating the installation of the sealing strip (9); the quick-installation mechanism comprises a mounting groove (4) provided on the upper edge of the top flange strip (203) and retaining columns (5) provided at four corner positions of the top flange strip (203); the mounting groove (4) is annular and is used for the sealing strip (9) to be installed; the retaining columns (5) are vertically slidably provided in the mounting groove (4) and divide the mounting groove (4) into a mounting portion (401) located on the inner side and a retaining portion (402) located on the outer side. The positioning portion (402) of the cover plate (202) is provided with top columns (8) at the four corner positions of the lower edge of the cover plate (202), and the lower end of the top column (8) can cooperate with the blocking piece (10) arranged at the lower end position of the blocking column (5) to drive the blocking column (5) to move downward during the installation process of the cover plate (202) pressing against the top flange strip (203), so that the sealing strip (9) can enter the installation portion (401) from the positioning portion (402) under the action of external force; the ends of all stirring shafts (205) in the box body (201) of any horizontal digestion unit (2) All of them extend to the outside of the box body (201), one of the stirring shafts (205) is a driving shaft and is directly connected to the driving member (206), and the remaining stirring shafts (205) are all driven shafts and are connected to the driving shaft through a pulley structure (208); a spring (11) is sleeved on the bottom of the blocking column (5), the lower end of the spring (11) is fixed to the blocking column (5), and the upper end is fixed to the top flange strip (203); the width of the mounting portion (401) is smaller than the outer diameter of the sealing strip (9), and the blocking piece (10) can be displaced under the action of an external force to separate from the top column (8); The sealing strip (9) is an asbestos rope, the blocking piece (10) is fixedly connected to the blocking column (5), and the blocking column (5) is rotatably matched with the top flange strip (203); It comprises a plurality of horizontal digestion units (2) distributed in a single layer, and two horizontal digestion units (2) located at the ends are respectively connected to a feed box (1) and a discharge box (3).

2. The easily assembled and sealed combined digester according to claim 1, characterized in that: Two circular first through holes (7) are provided on the top flange strip (203) for the two ends of the sealing strip (9) to pass through respectively. The two first through holes (7) are partially overlapped and the inner diameters of the two first through holes (7) are smaller than the sealing strip (9).

3. The easily assembled and sealed combined digester according to claim 1, characterized in that: There are a plurality of horizontal digestion units (2) distributed in multiple layers, two horizontal digestion units (2) located at the ends of any layer are respectively connected to a feed box (1) and a discharge box (3), and the discharge boxes (3) and feed boxes (1) of adjacent layers are butted.

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