CN216941137U

CN216941137U - Calcium silicate single-blank thick plate forming equipment

Info

Publication number: CN216941137U
Application number: CN202220169636.9U
Authority: CN
Inventors: 王阳; 李建新
Original assignee: Zhaoqing Sanle Integrated Housing Manufacturing Co ltd
Current assignee: Zhaoqing Sanle Integrated Housing Manufacturing Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-12
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses calcium silicate single blank thick plate forming equipment, which comprises an open type flow box, a bottom dewatering device, a top dewatering device, a supporting middle roller and a rubber covered roller, wherein the open type flow box is provided with a guide rail; the open type pulp flow box is arranged at the front end of the bottom dewatering device; the top dewatering device is arranged above the bottom dewatering device; the rubber covered roller is arranged at the rear end of the middle supporting roller; the bottom dewatering device comprises a bottom frame, a bottom net, a couch roll, a bottom guide net roll and a bottom vacuum pumping and filtering box; the top dewatering device comprises a top frame, a top net guide roller, a top vacuum suction filter box and a top net blast box; the supporting middle roller comprises a bottom supporting roller and a top supporting roller, and the rubber coating roller comprises a bottom rubber coating roller and a top rubber coating roller. The calcium silicate single-blank thick plate forming equipment can realize one-time forming of thick and wet blanks so as to improve the yield of thick plate products.

Description

Calcium silicate single-blank thick plate forming equipment

Technical Field

The utility model relates to the technical field of calcium silicate board production, in particular to calcium silicate single-blank thick plate forming equipment.

Background

The calcium silicate board is a novel building board which takes calcium and siliceous materials as continuous phases and various reinforcing fibers as reinforcing phases. The preparation process mainly comprises the processes of wet blank forming, plate blank compacting, pre-curing, autoclaved curing, sanding, edge cutting and the like. The calcium silicate board has the advantages of high strength, low heat conductivity coefficient, good fireproof performance, no toxicity, no harm and the like, and is an inorganic board with great development potential.

At present, the production of calcium silicate boards generally adopts a single-net pulp flowing process or a copying process with limited dewatering capacity, mixed slurry forms a thin material layer after being filtered by a net part, and is cut and the wet blank forming of the calcium silicate boards is completed after being wound by a tail forming cylinder in multiple layers and reaching the required thickness. The mode of laminating the multiple thin material layers easily causes the defects of poor uniformity, low strength, easy delamination, poor freeze-thaw resistance and the like of the calcium silicate plate, and seriously limits the production efficiency of the plate. This drawback is particularly evident in the case of calcium silicate boards of relatively high thickness.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and shortcomings of the prior art, and provides calcium silicate single-blank thick plate forming equipment which can realize one-time forming of thick and wet blanks so as to improve the yield of thick plate products.

The purpose of the utility model can be realized by the following technical scheme: a calcium silicate single blank thick plate forming device comprises an open type flow box, a bottom dewatering device, a top dewatering device, a supporting middle roller and a rubber covered roller; the open type pulp flow box is arranged at the front end of the bottom dewatering device; the top dewatering device is arranged above the bottom dewatering device; the rubber covered roller is arranged at the rear end of the middle supporting roller;

the bottom dewatering device comprises a bottom rack, a bottom net, a couch roll, a bottom guide net roll and a bottom vacuum pumping and filtering box; the couch roll and the bottom guide rolls are arranged on the bottom frame, the bottom net is wound on the couch roll and the bottom guide rolls, and the bottom net is conveyed along the clockwise direction;

the top dewatering device comprises a top frame, a top net guide roller, a top vacuum suction filter box and a top net blast box; the top net guide rollers are arranged on the top rack, the top net is wound on the top net guide rollers, and the top net is conveyed in the anticlockwise direction;

the middle supporting rollers comprise a bottom supporting roller and a top supporting roller, the bottom supporting roller and the top supporting roller are arranged in parallel, the bottom supporting roller is arranged in the bottom net, and the top supporting roller is arranged in the top net; a bottom vacuum pumping filter box is arranged at the front end of the bottom supporting roll and in the bottom net; a top vacuum suction filtration box and a top net blast box are respectively arranged at the front end of the top supporting roll and in the top net;

the rubber covered rollers comprise a bottom rubber covered roller and a top rubber covered roller, and the bottom rubber covered roller and the top rubber covered roller are arranged on the bottom rack in parallel;

the top net is obliquely arranged above the bottom net, the distance between the top net and the bottom net is gradually reduced along the clockwise direction, and the distance between the top net and the bottom net is the minimum at the position of the supporting middle roller.

Further, a homogenate roller is arranged in the open-type head box.

Furthermore, forming plates are arranged at the front ends of the bottom vacuum pumping and filtering box in the bottom net.

Further, the bottom dewatering device further comprises a bottom tension roller arranged on the bottom rack, and the bottom tension roller is arranged between the two bottom wire guide rollers.

Further, the top dewatering device further comprises a top tension roller installed on the top rack, and the top tension roller is arranged between the two top wire guide rollers.

Furthermore, the included angle between the top net and the bottom net is 5-10 degrees.

Further, a bottom sprayer is arranged in the bottom net.

Further, a top sprayer is arranged above the top net.

Furthermore, the bottom rubber covered roller is connected with a hydraulic press, and the hydraulic press is arranged on the bottom rack.

Furthermore, the vacuum degrees of the bottom vacuum filtration box and the top vacuum filtration box are gradually increased, and the vacuum degree range is 0.05MPa-0.2 MPa.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

1. the forming equipment provided by the utility model is provided with a double-sided dehydration area formed by the bottom net and the top net, can meet the requirement of one-time forming of thick and wet blanks, does not need to carry out multi-layer thin material layer superposition, improves the dehydration efficiency, and can greatly improve the production efficiency.

2. The forming equipment can prepare single-layer thick wet blanks, avoids overlapping of multiple thin material layers, and the prepared calcium silicate board has the advantages of high uniformity, difficulty in layering, good freeze-thaw resistance and the like.

3. The forming equipment provided by the utility model can be suitable for preparing calcium silicate boards with various purposes, and provides a powerful guarantee for the innovative development and the expansion of the application range of the calcium silicate boards.

Drawings

FIG. 1 is a schematic structural view of a calcium silicate single slab thick plate forming apparatus according to an embodiment of the present invention.

Wherein: 1: open headbox, 2: refining roll, 3: bottom net, 4: top net, 5: molding plate, 6: bottom vacuum suction filtration box, 7: top wire blower box, 81: bottom support roller, 82: top support roller, 91: bottom rubber-covered roll, 92: top rubber covered roller, 10: hydraulic press, 11: couch roll, 12: bottom shower, 13: bottom tension roller, 14: bottom wire guide roll, 15: bottom chassis, 16: top shower, 17: top tension roller, 18: top wire guide roll, 19: and a vacuum filtration box at the top.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

A calcium silicate single blank thick plate forming device comprises an open type flow box 1, a bottom dewatering device, a top dewatering device, a supporting middle roller and a rubber covered roller.

The open headbox is arranged at the front end of the bottom dewatering device, as shown in fig. 1, in this embodiment the left direction in the figure is referred to as the front end, which is also referred to below. The open-type head box is internally provided with a homogenate roller 2, and the pulp is uniformly mixed under the stirring of the homogenate roller.

The bottom dewatering device comprises a bottom frame 15, a bottom net 3, a couch roll 11, a bottom guide net roll 14, a bottom tension roll 13, a bottom vacuum suction filter box 6 and a forming plate 5. The couch roll and the bottom guide net rolls are arranged on the bottom frame, and the bottom net is wound on the couch roll and the bottom guide net rolls. For tensioning the bottom wire, a bottom tensioning roller can be arranged between the two bottom wire guiding rollers, which bottom tensioning roller is fixed on the bottom frame. And under the action of the couch roll, the bottom wire guide roll and the bottom tensioning roll, the bottom wire is conveyed clockwise. The uniformly mixed slurry is ejected through an open headbox onto a bottom wire through which it is transported to the right in fig. 1. In order to prevent the jumping of slurry and the collapse of the net part, a shaping plate is arranged below the slurry landing points, the shaping plate is a plane beam plate with a small inclination angle, and the small inclination angle is about 1 degree. The forming plate can make the slurry generate micro-turbulence, promote the uniform distribution of the slurry and complete the primary dehydration.

The top dewatering device is arranged above the bottom dewatering device and comprises a top frame (not shown in the figure), a top net guide roller 18, a top tension roller 17, a top vacuum suction filtration box 19 and a top net blast box 7. The top net guide rollers are arranged on the top rack, the top net is wound on the top net guide rollers, and the top net is conveyed along the anticlockwise direction. For tensioning the top wire, a top tension roll can be arranged between the two top wire guiding rolls, which top tension roll is fixed to the top frame.

The top wire is arranged obliquely above the bottom wire, the distance between the two wires is gradually reduced along the clockwise direction (from left to right in figure 1), and the distance between the two wires is the smallest at the position of the roller in the support. The slurry after preliminary dehydration enters a double-sided dehydration area with the distance formed by the bottom net and the top net gradually reduced along with the bottom net, and the included angle of the double-sided dehydration area is about 5-10 degrees.

The rollers include bottom supporting roller 81, top supporting roller 82 in supporting, bottom supporting roller, top supporting roller parallel arrangement, and the bottom supporting roller sets up in the bottom net, and the top supporting roller sets up in the top net. The bottom vacuum suction filtration box is arranged at the front end of the bottom supporting roll and in the bottom net and is used for dewatering the slurry below. The top vacuum suction filtration box is arranged at the front end of the top supporting roll and in the top net and is used for dewatering the slurry above the top supporting roll. The bottom vacuum filtration box and the top vacuum filtration box can be vacuum filtration boxes in the prior art, and the vacuum degree is gradually increased in the dehydration process and ranges from 0.05MPa to 0.2 MPa. The primarily dewatered pulp is largely dewatered in a double-sided dewatering area, and the thickness of the material layer is gradually reduced along with the dewatering. The rear end of the top vacuum suction filtration box is provided with a top net blast box. The rear end in this embodiment means the right side in fig. 1 corresponding to the front end, and the rear end described below also means this. The top wire blow box separates the wet billet from the top wire by the blown air flow, and finally forms a thick wet billet in the gap between the bottom support roller 81 and the top support roller 82.

The rubber covered roller is arranged at the rear end of the middle supporting roller and comprises a bottom rubber covered roller 91 and a top rubber covered roller 92, and the bottom rubber covered roller and the top rubber covered roller are arranged in the bottom rack in parallel. And (4) the thick wet blank enters the rubber covered roller along with the bottom net to finish the preliminary compaction, so that the thick wet blank which can be used for steam curing is formed. The pressure between the bottom rubber covered roller and the top rubber covered roller is controlled by a hydraulic press 10. The hydraulic press is connected with the bottom rubber covered roller and arranged on the bottom rack. The rubber covered roller can promote the uniform distribution of the slurry in the transverse direction, compact the plate and prevent the subsequent compaction process from being squashed.

A bottom sprayer 12 is arranged in the bottom net, a top sprayer 16 is arranged above the top net, the bottom net is washed by the bottom sprayer, and the top net can be circulated again after being washed by the top sprayer.

The working principle of the utility model is as follows: the uniformly mixed slurry is ejected onto a wire through an open headbox. The thick liquids of preliminary dehydration follow the double-sided dehydration district that the interval that the end screen got into end screen and top screen formation diminishes gradually, and bottom vacuum suction filter box, top vacuum suction filter box in the double-sided dehydration district dewater in a large number, dewater the thick liquids of preliminary dehydration in a large number, and material thickness also reduces along with the dehydration gradually, and top screen blast box 7 will wet base and top screen separation, and the rod forms thick wet base in the support finally. The thick wet blank enters the rubber covered roller along with the bottom net to finish the preliminary compaction, so as to form the thick wet blank which can be used for steam curing, and the pressure is controlled by a hydraulic press. Finally, the thick wet blank is transferred to the subsequent step via a couch roll.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The forming equipment for the thick calcium silicate single blank is characterized by comprising an open type flow box, a bottom dewatering device, a top dewatering device, a supporting middle roller and a rubber covered roller; the open type pulp flowing box is arranged at the front end of the bottom dewatering device; the top dewatering device is arranged above the bottom dewatering device; the rubber covered roller is arranged at the rear end of the middle supporting roller;

the bottom dewatering device comprises a bottom frame, a bottom net, a couch roll, a bottom guide net roll and a bottom vacuum suction filter box; the couch roll and the bottom guide rolls are arranged on the bottom frame, the bottom net is wound on the couch roll and the bottom guide rolls, and the bottom net is conveyed along the clockwise direction;

2. The apparatus of claim 1, wherein the open headbox comprises a distribution roll.

3. The apparatus for forming a thick calcium silicate single slab as claimed in claim 1, wherein a forming plate is provided in the bottom net at the front end of the vacuum filtration box.

4. The apparatus of claim 1, wherein the bottom dewatering device further comprises a bottom tension roll mounted to the bottom frame, the bottom tension roll being disposed between the two bottom godet rolls.

5. The apparatus according to claim 1, wherein the top dewatering device further comprises a top tension roll mounted to the top frame, the top tension roll being disposed between the two top wire guiding rolls.

6. The apparatus of claim 1, wherein the angle between the top and bottom webs is between about 5 ° and about 10 °.

7. The apparatus of claim 1, wherein the bottom screen has a bottom shower.

8. The apparatus of claim 1, wherein a top shower is provided above the top screen.

9. The forming apparatus of claim 1, wherein the bottom rubber-covered roll is connected to a hydraulic press, and the hydraulic press is disposed on the bottom frame.

10. The apparatus of claim 1, wherein the vacuum degree of the bottom vacuum filtration box and the vacuum degree of the top vacuum filtration box are gradually increased, and the vacuum degree ranges from 0.05MPa to 0.2 MPa.