阅读说明：本技术 一种制作陶瓷纤维滤管的喷浆设备及方法 (Guniting equipment and method for manufacturing ceramic fiber filter tube ) 是由 沈毅 周友信 陈勇 刘雪松 冯淼 胡波 王耀光 李景慧 周浩平 俞奇开 于 2020-12-21 设计创作，主要内容包括：本发明公开了一种制作陶瓷纤维滤管的喷浆设备及方法,其中设备包括旋转平台、与旋转平台同步旋转的陶瓷纤维浆料喷浆模块、加强浆料喷浆模块；陶瓷纤维浆料喷浆模块包括陶瓷纤维浆料进料箱、陶瓷纤维浆料计量泵、陶瓷纤维浆料喷料管以及陶瓷纤维浆料布液板；加强浆料喷浆模块包括加强浆料进料箱、加强浆料计量泵、加强浆料喷料管以及加强浆料布液板。本发明在整根陶瓷纤维浆料/加强浆料喷料管上适当位置设置多个喷料头,并对应喷料头设置布液板,使整根喷料管能够喷射上下均匀的浆液；并且喷料管随着旋转平台匀速旋转,从而保证整根成型陶瓷纤维滤管的管壁厚度的均匀性,提升了陶瓷纤维管的质量。(The invention discloses a guniting device and a guniting method for manufacturing a ceramic fiber filter tube, wherein the device comprises a rotating platform, a ceramic fiber slurry guniting module and a reinforced slurry guniting module, wherein the ceramic fiber slurry guniting module and the reinforced slurry guniting module synchronously rotate with the rotating platform; the ceramic fiber slurry spraying module comprises a ceramic fiber slurry feeding box, a ceramic fiber slurry metering pump, a ceramic fiber slurry spraying pipe and a ceramic fiber slurry distributing plate; the reinforced slurry spraying module comprises a reinforced slurry feeding box, a reinforced slurry metering pump, a reinforced slurry spraying pipe and a reinforced slurry liquid distribution plate. The invention arranges a plurality of material spraying heads at proper positions on the whole ceramic fiber slurry/reinforced slurry material spraying pipe, and arranges the liquid distribution plate corresponding to the material spraying heads, so that the whole material spraying pipe can spray slurry which is uniform up and down; and the material spraying pipe rotates at a constant speed along with the rotating platform, so that the uniformity of the pipe wall thickness of the whole formed ceramic fiber filter pipe is ensured, and the quality of the ceramic fiber filter pipe is improved.)

1. The utility model provides a whitewashing equipment of preparation ceramic fiber filter tube for the whitewashing of three-section structure ceramic fiber filter tube that has flange section, middle filter segment, tail end closed section, its characterized in that: the guniting equipment comprises a rotating platform, a ceramic fiber slurry guniting module and a reinforced slurry guniting module, wherein the ceramic fiber slurry guniting module and the reinforced slurry guniting module synchronously rotate with the rotating platform;

the ceramic fiber slurry spraying module comprises a ceramic fiber slurry feeding box, a ceramic fiber slurry metering pump, a ceramic fiber slurry spraying pipe and a ceramic fiber slurry distribution plate, wherein the ceramic fiber slurry spraying pipe is provided with ceramic fiber slurry spraying heads corresponding to a flange section, a middle filtering section and a tail end closed section, ceramic fiber slurry in the ceramic fiber slurry feeding box is pressed into the ceramic fiber slurry spraying pipe through the ceramic fiber slurry metering pump, the ceramic fiber slurry is sprayed out through the ceramic fiber slurry spraying heads, and the ceramic fiber slurry is sprayed to the inner wall surface of the ceramic fiber filtering pipe die in a linear manner under the liquid distribution action of the ceramic fiber slurry distribution plate;

the reinforced slurry spraying module comprises a reinforced slurry feeding box, a reinforced slurry metering pump, a reinforced slurry spraying pipe and a reinforced slurry liquid distribution plate, wherein the reinforced slurry spraying pipe is provided with a reinforced slurry spraying head corresponding to a flange section and a tail end closed section, the reinforced slurry in the reinforced slurry feeding box is pressed into the reinforced slurry spraying pipe through the reinforced slurry metering pump, the reinforced slurry is sprayed out through the reinforced slurry spraying head, and the reinforced slurry is sprayed to the inner wall surface of the ceramic fiber filter pipe mould in a linear mode through the liquid distribution function of the reinforced slurry liquid distribution plate.

2. The guniting apparatus for making ceramic fiber filter tubes according to claim 1, wherein: still including being fixed in the high-order quantitative slurrying groove of ceramic fibre above the ceramic fibre thick liquids feeding box, the high-order quantitative slurrying groove of ceramic fibre is equipped with ceramic fibre thick liquids agitator and ceramic fibre thick liquids counter, the ceramic fibre thick liquids discharge gate for ceramic fibre thick liquids feeding box feed is connected to the bottom in the high-order quantitative slurrying groove of ceramic fibre, ceramic fibre thick liquids discharge gate is connected with ceramic fibre thick liquids control valve and ceramic fibre thick liquids flowmeter.

3. The guniting apparatus for making a ceramic fiber filter tube according to claim 2, wherein: ceramic fiber thick liquids feed box is close to rotary platform's center, ceramic fiber thick liquids feed box's top is provided with ceramic fiber thick liquids central loading hopper, ceramic fiber thick liquids central loading hopper is used for accepting the ceramic fiber thick liquids that fall from ceramic fiber thick liquids discharge gate, ceramic fiber thick liquids filling tube is connected to ceramic fiber thick liquids central loading hopper's bottom, ceramic fiber thick liquids filling tube is connected with ceramic fiber thick liquids feed box.

4. The guniting apparatus for making ceramic fiber filter tubes according to claim 1, wherein: still including being fixed in the high-order quantitative preparation groove of the enhancement thick liquids of enhancement thick liquids feeding case top, it is equipped with the enhancement thick liquids agitator and strengthens the thick liquids counter to strengthen the high-order quantitative preparation groove of thick liquids, the enhancement thick liquids discharge gate for strengthening the thick liquids feeding case feed is connected to the bottom of strengthening the high-order quantitative preparation groove of thick liquids, it is connected with enhancement thick liquids control valve and enhancement thick liquids flowmeter to strengthen the thick liquids discharge gate.

5. The guniting apparatus for making a ceramic fiber filter tube according to claim 4, wherein: strengthen thick liquids feeding case and be close to rotary platform's center, the top of strengthening thick liquids feeding case is provided with strengthens thick liquids central loading hopper, it is used for accepting from strengthening the enhancement thick liquids that the thick liquids discharge gate fell to strengthen thick liquids central loading hopper, strengthen the bottom of thick liquids central loading hopper and connect and strengthen the thick liquids filling tube, strengthen the thick liquids filling tube and strengthen thick liquids feeding case and be connected.

6. The guniting apparatus for manufacturing a ceramic fiber filter tube according to any one of claims 1 to 5, wherein: the rotary platform is arranged on a platform supporting frame, the platform supporting frame is provided with a platform rotating track wheel, and the platform rotating track wheel is supported on a platform rotating circular track.

7. The guniting apparatus for making a ceramic fiber filter tube according to claim 6, wherein: the rotary platform is driven to rotate by the platform speed-regulating rotating machine, the platform speed-regulating rotating machine is provided with a platform rotating machine track wheel, and the platform rotating machine track wheel is supported on the platform rotating circular track.

8. The guniting method for manufacturing the ceramic fiber filter tube is characterized by comprising a ceramic fiber slurry quantitative guniting process and a reinforced slurry quantitative guniting process, wherein:

the ceramic fiber slurry guniting process comprises the following steps: the prepared ceramic fiber slurry passes through a ceramic fiber slurry flowmeter, quantitatively passes through a ceramic fiber slurry central feeding hopper and a ceramic fiber slurry feeding pipe, and is added into a ceramic fiber slurry feeding box at a set speed; pressing the prepared ceramic fiber slurry into a ceramic fiber spraying pipe through a ceramic fiber slurry metering pump, spraying the ceramic fiber slurry out of a ceramic fiber slurry spraying head on the ceramic fiber spraying pipe, and spraying the ceramic fiber slurry to the inner wall surface of a ceramic fiber filter pipe die in a linear manner under the liquid distribution action of a ceramic fiber slurry liquid distribution plate; along with the rotation of the rotary platform, ceramic fiber slurry is uniformly distributed in the whole ceramic fiber filter tube mould, and the rotation speed is controlled simultaneously, so that the rotation of the rotary platform is a complete cycle during quantitative slurry spraying;

the reinforced slurry spraying process comprises the following steps: adding the prepared reinforced slurry into a reinforced slurry feeding box at a set speed through a reinforced slurry flowmeter, a reinforced slurry central feeding hopper and a reinforced slurry feeding pipe in a quantitative mode; pressing the prepared reinforced slurry into a reinforced spraying pipe through a reinforced slurry metering pump, spraying the reinforced slurry through a reinforced slurry spraying head on the reinforced spraying pipe, and spraying the reinforced slurry to the inner wall surface of a reinforced filter pipe die in a linear manner under the liquid distribution action of a reinforced slurry liquid distribution plate; along with the rotation of the rotary platform, the reinforced slurry is uniformly distributed on the whole reinforced filter tube mould, and the rotation speed is controlled simultaneously, so that the rotation of the rotary platform is a complete cycle during quantitative slurry spraying.

9. The guniting method for making a ceramic fiber filter tube according to claim 8, wherein: pretreating ceramic fibers, wherein the length-diameter ratio of the pretreated ceramic fibers is 50-500, weighing the ceramic fibers, adding the ceramic fibers into a ceramic fiber high-position quantitative pulping tank, wherein the added ceramic fibers account for 10-25 wt% of the total amount of a ceramic fiber slurry solution, correspondingly adding 50-70 wt% of silica sol and 10-30 wt% of water, fully stirring the mixture by a ceramic fiber slurry stirrer to prepare a ceramic fiber slurry solution, and rechecking the total amount of the slurry by a ceramic fiber slurry flowmeter.

10. The guniting method for making a ceramic fiber filter tube according to claim 8, wherein: the selected inorganic reinforcing agent is crushed to reach the size of 300-1000 meshes, the inorganic reinforcing agent is weighed and added into a reinforced slurry high-position quantitative preparation tank, the adding amount is 20-50 wt% of the total amount of the reinforced slurry solution, 30-50 wt% of silica sol and 10-30 wt% of water are correspondingly added into the reinforced slurry high-position quantitative preparation tank, the reinforced slurry solution is prepared by stirring of a reinforced slurry stirrer, and the total amount of the slurry is rechecked by a reinforced slurry meter.

Technical Field

The invention relates to the technical field of environmental protection, in particular to a technology for manufacturing a ceramic fiber filter tube for dedusting high-temperature flue gas and purifying harmful substances.

Background

With the progress of society, people's environmental protection consciousness is continuously strengthened, and the national emission standard requirement for waste gas further improves, especially strengthens control to SO2, NOx, smoke and dioxin in the waste gas, and the waste gas emission requirement reaches the ultra-clean standard.

Ceramic fiber is a light refractory fiber having a diameter of 2 to 5 μm and a length of 30 to 250mm, and is one of the filtration technologies that have been developed rapidly in recent years. Compared with the traditional filter materials such as fiber cloth bags and the like, the ceramic fiber filter tube has similar filtering pressure drop, higher dust filtering effect, longer filtering contact time, higher use temperature which can reach more than 600 ℃ and is far higher than the use temperature of the cloth bags and more favorable for recycling and utilizing the energy of the smoke, so the ceramic fiber filter tube can replace the dust removing cloth bags in the bag type dust remover and is used for dust removing and purifying high-temperature dust-containing harmful gases in furnaces and kilns in the industries such as metallurgy, building materials, chemical industry, electric power, machinery, environmental protection and the like, and the atmospheric environment is protected.

However, the automation degree of the existing ceramic fiber filter tube preparation is not high, and for example, the existing internal suction type ceramic fiber filter tube forming needs batch grouting, the operation is complex, and the wall thickness and uniformity of the filter tube are not easy to control. Chinese patent CN105437366B discloses a ceramic fiber tube suction filtration molding system, which specifically comprises the steps of injecting slurry mixed with ceramic fibers into an inner cavity of a tubular mold, vacuumizing the mold, separating slurry addition and suction filtration molding into independent steps, performing asynchronous operation, adding one more material in the inner cavity at one time, and adding materials in multiple times if the amount is not enough, wherein the operation is complex.

The prior ceramic fiber filter tube needs to be reinforced with a flange section and a closed section after being manufactured so as to improve the overall strength, and Chinese patent CN107398133B discloses a method for reinforcing the flange section and the closed section of the ceramic fiber filter tube, wherein the adopted method is a 1-4-time soaking method, which influences the uniformity and the quality stability of the ceramic fiber filter tube.

Disclosure of Invention

The invention aims to provide a guniting device and a guniting method for manufacturing a ceramic fiber filter tube, which realize automatic guniting and conveniently control the wall thickness and uniformity of the filter tube.

In order to solve the technical problems, the invention adopts the following technical scheme: a guniting device for manufacturing a ceramic fiber filter tube is used for guniting a ceramic fiber filter tube with a three-section structure, namely a flange section, a middle filter section and a tail end closed section, and comprises a rotary platform, a ceramic fiber slurry guniting module and a reinforced slurry guniting module, wherein the ceramic fiber slurry guniting module and the reinforced slurry guniting module synchronously rotate with the rotary platform;

the ceramic fiber slurry spraying module comprises a ceramic fiber slurry feeding box, a ceramic fiber slurry metering pump, a ceramic fiber slurry spraying pipe and a ceramic fiber slurry distribution plate, wherein the ceramic fiber slurry spraying pipe is provided with ceramic fiber slurry spraying heads corresponding to a flange section, a middle filtering section and a tail end closed section, ceramic fiber slurry in the ceramic fiber slurry feeding box is pressed into the ceramic fiber slurry spraying pipe through the ceramic fiber slurry metering pump, the ceramic fiber slurry is sprayed out through the ceramic fiber slurry spraying heads, and the ceramic fiber slurry is sprayed to the inner wall surface of the ceramic fiber filtering pipe die in a linear manner under the liquid distribution action of the ceramic fiber slurry distribution plate;

the reinforced slurry spraying module comprises a reinforced slurry feeding box, a reinforced slurry metering pump, a reinforced slurry spraying pipe and a reinforced slurry liquid distribution plate, wherein the reinforced slurry spraying pipe is provided with a reinforced slurry spraying head corresponding to a flange section and a tail end closed section, the reinforced slurry in the reinforced slurry feeding box is pressed into the reinforced slurry spraying pipe through the reinforced slurry metering pump, the reinforced slurry is sprayed out through the reinforced slurry spraying head, and the reinforced slurry is sprayed to the inner wall surface of the ceramic fiber filter pipe mould in a linear mode through the liquid distribution function of the reinforced slurry liquid distribution plate.

Preferably, still including being fixed in the high-order quantitative slurrying groove of ceramic fibre above the ceramic fibre thick liquids feed box, the high-order quantitative slurrying groove of ceramic fibre is equipped with ceramic fibre thick liquids agitator and ceramic fibre thick liquids counter, the ceramic fibre thick liquids discharge gate for the ceramic fibre thick liquids feed box feed is connected to the bottom in the high-order quantitative slurrying groove of ceramic fibre, ceramic fibre thick liquids discharge gate is connected with ceramic fibre thick liquids control valve and ceramic fibre thick liquids flowmeter.

Preferably, ceramic fiber thick liquids feed box is close to rotary platform's center, ceramic fiber thick liquids feed box's top is provided with ceramic fiber thick liquids central loading hopper, ceramic fiber thick liquids central loading hopper is used for accepting the ceramic fiber thick liquids that fall from ceramic fiber thick liquids discharge gate, ceramic fiber thick liquids filling pipe is connected to ceramic fiber thick liquids central loading hopper's bottom, ceramic fiber thick liquids filling pipe is connected with ceramic fiber thick liquids feed box.

Preferably, still including being fixed in the high-order quantitative preparation groove of the enhancement thick liquids of enhancement thick liquids feeding case top, the high-order quantitative preparation groove of enhancement thick liquids is equipped with the enhancement thick liquids agitator and strengthens the thick liquids counter, the enhancement thick liquids discharge gate for the enhancement thick liquids feeding case feed is connected to the bottom of strengthening the high-order quantitative preparation groove of thick liquids, it is connected with enhancement thick liquids control valve and enhancement thick liquids flowmeter to strengthen the thick liquids discharge gate.

Preferably, strengthen the thick liquids feeding case and be close to rotary platform's center, the top of strengthening thick liquids feeding case is provided with strengthens thick liquids central loading hopper, it is used for accepting the enhancement thick liquids that fall from strengthening the thick liquids discharge gate to strengthen thick liquids central loading hopper, strengthen the bottom of thick liquids central loading hopper and connect and strengthen the thick liquids filling tube, strengthen the thick liquids filling tube and strengthen thick liquids feeding case and be connected.

Preferably, the rotary platform is arranged on a platform supporting frame, the platform supporting frame is provided with a platform rotating track wheel, and the platform rotating track wheel is supported on a platform rotating circular track.

Preferably, the rotary platform is driven to rotate by a platform speed-regulating rotating machine, the platform speed-regulating rotating machine is provided with a platform rotating machine track wheel, and the platform rotating machine track wheel is supported on a platform rotating circular track.

The invention also provides a guniting method for manufacturing the ceramic fiber filter tube, which comprises a ceramic fiber slurry quantitative guniting process and a reinforced slurry quantitative guniting process, wherein:

the ceramic fiber slurry guniting process comprises the following steps: the prepared ceramic fiber slurry passes through a ceramic fiber slurry flowmeter, quantitatively passes through a ceramic fiber slurry central feeding hopper and a ceramic fiber slurry feeding pipe, and is added into a ceramic fiber slurry feeding box at a set speed; pressing the prepared ceramic fiber slurry into a ceramic fiber spraying pipe through a ceramic fiber slurry metering pump, spraying the ceramic fiber slurry out of a ceramic fiber slurry spraying head on the ceramic fiber spraying pipe, and spraying the ceramic fiber slurry to the inner wall surface of a ceramic fiber filter pipe die in a linear manner under the liquid distribution action of a ceramic fiber slurry liquid distribution plate; along with the rotation of the rotary platform, ceramic fiber slurry is uniformly distributed in the whole ceramic fiber filter tube mould, and the rotation speed is controlled simultaneously, so that the rotation of the rotary platform is a complete cycle during quantitative slurry spraying;

the reinforced slurry spraying process comprises the following steps: adding the prepared reinforced slurry into a reinforced slurry feeding box at a set speed through a reinforced slurry flowmeter, a reinforced slurry central feeding hopper and a reinforced slurry feeding pipe in a quantitative mode; pressing the prepared reinforced slurry into a reinforced spraying pipe through a reinforced slurry metering pump, spraying the reinforced slurry through a reinforced slurry spraying head on the reinforced spraying pipe, and spraying the reinforced slurry to the inner wall surface of a reinforced filter pipe die in a linear manner under the liquid distribution action of a reinforced slurry liquid distribution plate; along with the rotation of the rotary platform, the reinforced slurry is uniformly distributed on the whole reinforced filter tube mould, and the rotation speed is controlled simultaneously, so that the rotation of the rotary platform is a complete cycle during quantitative slurry spraying.

Preferably, the ceramic fiber is pretreated, the length-diameter ratio of the pretreated ceramic fiber is 50-500, the ceramic fiber is weighed and added into a ceramic fiber high-position quantitative pulping tank, the added ceramic fiber accounts for 10-25 wt% of the total amount of the ceramic fiber slurry solution, 50-70 wt% of silica sol and 10-30 wt% of water are correspondingly added, the mixture is fully stirred by a ceramic fiber slurry stirrer to prepare the ceramic fiber slurry solution, and the ceramic fiber slurry flowmeter is used for rechecking the total amount of the slurry.

Preferably, the selected inorganic reinforcing agent is crushed to reach the size of 300-1000 meshes, the inorganic reinforcing agent is weighed and added into the reinforced slurry high-level quantitative preparation tank, the adding amount is 20-50 wt% of the total amount of the reinforced slurry solution, 30-50 wt% of silica sol and 10-30 wt% of water are correspondingly added into the reinforced slurry high-level quantitative preparation tank, the reinforced slurry solution is prepared by stirring of a reinforced slurry stirrer, and the total amount of the slurry is rechecked by a reinforced slurry meter.

By adopting the technical scheme, the invention has the following beneficial effects:

the other side of the ceramic fiber slurry spraying pipe is provided with a reinforced slurry spraying pipe, and the spraying heads are only arranged at the flange section at the upper end of the reinforced slurry spraying pipe and the closed end at the tail end of the reinforced slurry spraying pipe, so that the spraying requirements of the reinforced slurry on the flange section and the closed end of the ceramic fiber filter pipe are met. One set of equipment can finish two slurry spraying processes, reduces manual adjustment steps and improves the automation degree.

Arranging a plurality of material spraying heads at proper positions on the whole ceramic fiber slurry/reinforced slurry material spraying pipe, and arranging a liquid distribution plate corresponding to the material spraying heads, so that the whole material spraying pipe can spray slurry which is uniform up and down; and the material spraying pipe rotates at a constant speed along with the rotating platform, so that the uniformity of the pipe wall thickness of the whole formed ceramic fiber filter pipe is ensured, and the quality of the ceramic fiber filter pipe is improved.

Because the whole material spraying part is arranged on a rotary platform, the rotary platform is controlled by a speed regulating motor, slurry is uniformly distributed on the whole forming die along with the rotation of the platform, and the rotation speed is controlled simultaneously, so that the rotation of the platform is complete in the quantitative slurry spraying process.

A flow meter and a control valve are arranged below the high-level quantitative slurry making tank, a charging hopper and a charging pipe communicated with a front feeding box of a metering pump are arranged at the position of a rotation center, and the prepared slurry is quantitatively fed into the front feeding box of the metering pump at a certain speed through the central charging hopper and the charging pipe through a flow meter, so that the automatic feeding of the slurry by an internal suction forming method is realized.

Arranging equipment in front of a central charging hopper outside a rotating platform, and arranging equipment behind the central charging hopper on the rotating platform; the position of central loading hopper is close rotation center, and its position does not change along with the rotation of platform, can guarantee that thick liquids can add smoothly in the preceding feed box of metering pump in the platform rotation process.

Through the quantitative pulping of the quantitative pulping tank and the accurate metering of the slurry metering pump, the instantaneous injection amount and the total injection amount of the injected slurry are controlled, and the quantity consistency of the injected slurry is ensured.

The uniform spraying of the reinforcing slurry is ensured by controlling the reinforcing slurry from the preparation to the spraying. Meanwhile, the accurate control of the reinforcing position of the ceramic fiber pipe is realized by controlling the reinforcing slurry spray head and the corresponding vacuum pumping position, so that the stability of the area of the middle filter section is ensured, and the quality stability of the ceramic fiber pipe is further improved.

The following detailed description of the present invention will be provided in conjunction with the accompanying drawings.

Drawings

The invention is further described with reference to the accompanying drawings and the detailed description below:

FIG. 1 is a schematic structural view of a guniting apparatus for manufacturing a ceramic fiber filter tube according to the present invention;

in the figure: 1. a ceramic fiber high-position quantitative pulping tank, 2 a ceramic fiber slurry stirrer, 3 a ceramic fiber slurry meter, 4 a ceramic fiber slurry tank support frame, 5 a ceramic fiber slurry control valve, 6 a ceramic fiber slurry flow meter, 7 a ceramic fiber slurry central feed hopper, 8 a ceramic fiber slurry feed pipe, 9 a ceramic fiber slurry feed box, 10 a ceramic fiber slurry metering pump, 11 a reinforced slurry high-position quantitative preparation tank, 12 a reinforced slurry stirrer, 13 a reinforced slurry meter, 14 a reinforced slurry tank support frame, 15 a reinforced slurry control valve, 16 a reinforced slurry flow meter, 17 a reinforced slurry central feed hopper, 18 a reinforced slurry feed pipe, 19 a reinforced slurry feed box, 20 a reinforced slurry, 21 a ceramic fiber slurry metering pump connecting a fixed flange, 22 a ceramic fiber slurry spray pipe, 23. the device comprises a ceramic fiber slurry spraying head, a ceramic fiber slurry distribution plate, a ceramic fiber slurry closed-end arc spraying head, a reinforced slurry spraying pipe, a reinforced slurry flange section spraying head, a reinforced slurry closed-end arc spraying head, a reinforced slurry distribution plate, a reinforced slurry spraying pipe, a reinforced slurry flange section spraying head, a reinforced slurry closed-end arc spraying head, a reinforced slurry distribution plate, a reinforced slurry spraying device, a sprayer fixing flange, a rotating platform, a platform supporting frame, a platform speed regulating rotating machine, a platform rotating machine track wheel, a platform rotating track wheel and a platform rotating track, wherein the platform rotating track wheel is.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be appreciated by those skilled in the art that features from the examples and embodiments described below may be combined with each other without conflict.

As shown in fig. 1, a guniting apparatus for manufacturing a ceramic fiber filter tube is used for guniting a ceramic fiber filter tube with a three-section structure, which has a flange section, a middle filter section and a tail end closing section, and comprises a rotary platform 32, a ceramic fiber slurry guniting module and a reinforced slurry guniting module, wherein the ceramic fiber slurry guniting module and the reinforced slurry guniting module synchronously rotate with the rotary platform 32.

The rotary platform 32 is disposed on a platform support 33, the platform support 33 is provided with a platform rotating track wheel 36, and the platform rotating track wheel 36 is supported on a platform rotating circular track 37. The rotary platform 32 is driven to rotate by a platform speed regulating rotating machine 34, the platform speed regulating rotating machine 34 is provided with a platform rotating machine track wheel 35, and the platform rotating machine track wheel 35 is supported on a platform rotating circular track 37. Accordingly, the rotary platform 32 can be stably rotated by the cooperation of the platform turning rail wheels 36 and the platform turning circular rails 37.

The ceramic fiber slurry spraying module comprises a ceramic fiber slurry feeding box 9, a ceramic fiber slurry metering pump 10, a ceramic fiber slurry spraying pipe 22 and a ceramic fiber slurry liquid distribution plate 24, wherein a feeding pipe below the ceramic fiber slurry feeding box 9 is connected with the ceramic fiber slurry spraying pipe 22 through a ceramic fiber slurry spraying pipe connecting and fixing flange 21. The ceramic fiber slurry spraying pipe is provided with ceramic fiber slurry spraying heads 23 corresponding to the flange section, the middle filtering section and the tail end closed section, ceramic fiber slurry in the ceramic fiber slurry feeding box 9 is pressed into the ceramic fiber slurry spraying pipe 22 through the ceramic fiber slurry metering pump 10, the ceramic fiber slurry is sprayed out through the ceramic fiber slurry spraying heads 23, and the ceramic fiber slurry is sprayed to the inner wall surface of the ceramic fiber filtering pipe mold in a linear mode through the liquid distribution effect of the ceramic fiber slurry liquid distribution plate 24.

Further, still including being fixed in ceramic fiber thick liquids feed box 9 top ceramic fiber high-order quantitative pulping tank 1, ceramic fiber high-order quantitative pulping tank 1 is installed in ceramic fiber thick liquids trough supporting rack 4, ceramic fiber high-order quantitative pulping tank 1 is equipped with ceramic fiber thick liquids agitator 2 and ceramic fiber thick liquids counter 3, the ceramic fiber thick liquids discharge gate of ceramic fiber thick liquids feed box feed is connected to ceramic fiber thick liquids discharge gate of ceramic fiber thick liquids feed box, ceramic fiber thick liquids discharge gate is connected with ceramic fiber thick liquids control valve 5 and ceramic fiber thick liquids flowmeter 6. Ceramic fiber thick liquids feed box 9 is close to rotary platform 32's center, ceramic fiber thick liquids feed box 9's top is provided with ceramic fiber thick liquids central loading hopper 7, ceramic fiber thick liquids central loading hopper 7 is used for accepting the ceramic fiber thick liquids that fall from ceramic fiber thick liquids discharge gate, ceramic fiber thick liquids filling pipe 8 is connected to ceramic fiber thick liquids central loading hopper 7's bottom, ceramic fiber thick liquids filling pipe 8 is connected with ceramic fiber thick liquids feed box 9.

Strengthen thick liquids whitewashing module including strengthening thick liquids feeding case 19, strengthening thick liquids measuring pump 20, strengthening thick liquids spout material pipe 27 and strengthening thick liquids cloth liquid board 30, strengthen the inlet pipe of thick liquids feeding case 19 below and connect mounting flange 26 and strengthen thick liquids spout material pipe 27 and be connected through strengthening thick liquids spout. The reinforced slurry spraying pipe 27 is provided with reinforced slurry spraying heads corresponding to the flange section and the tail end closed section, namely a reinforced slurry flange section spraying head 28 and a reinforced slurry closed section arc spraying head 29, reinforced slurry in the reinforced slurry feeding box 19 is pressed into the reinforced slurry spraying pipe 27 through the reinforced slurry metering pump 20, and the reinforced slurry is sprayed out through the reinforced slurry spraying heads and is sprayed to the inner wall surface of the ceramic fiber filter pipe mold in a linear mode through the liquid distribution effect of the reinforced slurry liquid distribution plate 30.

Further, still including being fixed in the high-order quantitative preparation of enhancement thick liquids groove 11 of enhancement thick liquids feeding case 19 top, strengthen thick liquids high-order quantitative preparation of thick liquids groove 11 and install in strengthening thick liquids groove supporting rack 14, strengthen thick liquids high-order quantitative preparation of thick liquids groove 11 and be equipped with and strengthen thick liquids agitator 12 and strengthen thick liquids counter 13, strengthen the enhancement thick liquids discharge gate of the high-order quantitative preparation of thick liquids groove 11 bottom connection for strengthening thick liquids feeding case feed, it is connected with and strengthens thick liquids control valve 15 and strengthen thick liquids flowmeter 16 to strengthen the thick liquids discharge gate. Strengthen thick liquids feeding box 19 and be close to the center of rotary platform 32, the top of strengthening thick liquids feeding box 19 is provided with strengthens thick liquids central loading hopper 17, strengthen thick liquids central loading hopper 17 and be used for accepting the enhancement thick liquids that fall from strengthening the thick liquids discharge gate, strengthen thick liquids central loading hopper 17's bottom and connect and strengthen thick liquids filling tube 18, strengthen thick liquids filling tube 18 and strengthen thick liquids feeding box 19 and be connected.

A material sprayer fixing flange 31 is arranged below the center of the rotary platform 32 and is used for connecting the ceramic fiber slurry spraying pipe 22 and the reinforced slurry spraying pipe 27 and driving the material sprayer to rotate integrally.

In addition, the guniting equipment for manufacturing the ceramic fiber filter tube corresponds to the above mentioned guniting equipment, and the guniting method for manufacturing the ceramic fiber filter tube comprises a ceramic fiber slurry quantitative guniting process and a reinforced slurry quantitative guniting process.

The ceramic fiber slurry quantitative guniting process comprises the following steps: cutting off ceramic fibers meeting the requirements, controlling the length-diameter ratio of the cut ceramic fibers to be 50-500, grinding the ceramic fibers to improve the fineness of the ceramic fibers, removing ball residues by a flotation method according to the difference of specific gravity, weighing a certain amount of the pretreated ceramic fibers, adding the ceramic fibers into a ceramic fiber high-position quantitative pulping tank 1, wherein the weighed amount of the ceramic fibers is the amount required for preparing one ceramic fiber pipe or the integral quantity of one ceramic fiber pipe, the amount of the ceramic fibers accounts for 10-25 wt% of the total pulp amount, correspondingly adding 50-70 wt% of silica sol and 10-30 wt% of water into the ceramic fiber high-position quantitative pulping tank 1, starting a ceramic fiber pulp stirrer 2 to stir to prepare ceramic fiber pulp solution with good fluidity, rechecking the total pulp amount by using a ceramic fiber pulp meter 3, and timely adjusting if the difference is necessary. Of course, the formula of the ceramic fiber slurry and the pulping method can also refer to the prior art.

Furthermore, a ceramic fiber slurry central feeding hopper 7 and a ceramic fiber slurry feeding pipe 8 which is communicated with a ceramic fiber slurry feeding box 9 in front of a ceramic fiber slurry metering pump 10 are arranged at the position of the rotating center; the prepared slurry passes through a ceramic fiber slurry flowmeter 6, the ceramic fiber slurry is added into a ceramic fiber slurry feeding port 9 in front of a ceramic fiber slurry metering pump 10 at a certain speed, and the feeding speed is adjusted by a ceramic fiber slurry control valve 5.

Further, the devices before the ceramic fiber slurry central feeding hopper 7 are arranged outside the rotating platform 32, and the devices after the ceramic fiber slurry central feeding hopper 7 are arranged on the rotating platform 32; the position of ceramic fibre thick liquids center loading hopper 7 is close to the rotation center, its position does not change too big along with rotary platform 32's rotation, because ceramic fibre high-order ration slurrying groove 1 and ceramic fibre thick liquids control valve 5 set up outside rotary platform 32, do not change the position along with rotary platform 32's rotation, thereby guarantee that ejection of compact ceramic fibre thick liquids control valve 5 under the ceramic fibre ration slurrying groove 1 and ceramic fibre thick liquids center loading hopper 7's relative position does not change too big along with the rotation of platform, thereby guarantee in the rotatory in-process thick liquids of platform can add smoothly in ceramic fibre thick liquids feed box 9 before ceramic fibre thick liquids measuring pump 10.

Further, the prepared ceramic fiber slurry is pressed into the ceramic fiber slurry spraying pipe 22 through the ceramic fiber slurry metering pump 10, due to the existence of pressure, the ceramic fiber slurry can be sprayed out through the ceramic fiber slurry spraying head 23 on the ceramic fiber slurry spraying pipe 22, and the slurry is linearly sprayed to the inner wall surface of the mold through the liquid distribution function of the ceramic fiber slurry liquid distribution 24 by the whole ceramic fiber slurry feeding pipe 8.

Furthermore, because the whole subsequent material spraying part is arranged on a rotary platform 32, the rotary platform 32 is controlled by a platform speed regulating rotating machine 34, along with the rotation of the rotary platform 32, the slurry is uniformly distributed on the whole forming die, and simultaneously, the rotating speed is controlled, so that the rotation of the platform during quantitative slurry spraying is complete, namely, the rotating frequency and the position of the rotary platform 32 are set to be linked with the discharging ceramic fiber slurry control valve 5 under the ceramic fiber quantitative slurry making tank 1, when the rotary platform 32 reaches the linked set position, the discharging ceramic fiber slurry control valve 5 under the ceramic fiber quantitative slurry making tank 1 is closed to stop feeding, thereby ensuring the uniform wall thickness of the ceramic fiber filter tube.

Reinforcing slurry quantitative spraying process: firstly, the selected inorganic reinforcing agent is crushed to reach the 300-1000 meshes, a certain amount of the pretreated inorganic reinforcing agent is weighed and added into the reinforced slurry high-level quantitative preparation tank 11, the weighed amount of the inorganic reinforcing agent is 20-50 wt% of the total slurry for preparing one ceramic fiber tube or the integral multiple of one ceramic fiber tube, correspondingly, 30-50 wt% of silica sol and 10-30 wt% of water are added into the reinforced slurry high-level quantitative preparation tank 11, and the reinforced slurry stirrer 12 is started to stir to prepare the reinforced slurry solution. And the total amount of the slurry is rechecked by a reinforced slurry meter 13, and if the difference is generated, the reason needs to be found and adjusted in time. Of course, the formula of the ceramic fiber slurry and the pulping method can also refer to the prior art.

Furthermore, before adding the reinforced slurry, the suction filtration forming work of the ceramic fiber filter tube is completed, the corresponding ceramic fiber slurry feeding facility is closed, necessary preparation work before the spraying of the corresponding reinforced slurry is started is performed, and then the reinforced slurry passes through a reinforced slurry central feeding hopper 17 arranged on the rotating central position and a reinforced slurry feeding tube 18 communicated with a reinforced slurry feeding box 19 in front of a reinforced slurry metering pump 20; the prepared slurry passes through a reinforced slurry flow meter 16, and the reinforced slurry is added into a reinforced slurry feeding box 19 in front of a reinforced slurry metering pump 20 at a certain speed, and the feeding speed is adjusted through a reinforced slurry control valve 15.

Further, the devices before reinforcing the slurry central feeding hopper 17 are arranged outside the rotating platform 32, and the devices after reinforcing the slurry central feeding hopper 17 are arranged on the rotating platform 32; the position of reinforcing slurry central feeding hopper 17 is close to the rotation center, the position of the reinforcing slurry central feeding hopper does not change too much along with the rotation of the rotary platform 32, because the reinforcing slurry high-position quantitative pulping tank 11 and the reinforcing slurry control valve 15 are arranged outside the rotary platform 32, the position of the reinforcing slurry central feeding hopper does not change too much along with the rotation of the rotary platform 32, thereby ensuring that the relative position of the discharging reinforcing slurry control valve 15 under the reinforcing slurry high-position quantitative pulping tank 11 and the reinforcing slurry central feeding hopper 17 does not change too much along with the rotation of the platform, and ensuring that the slurry can be smoothly added into the reinforcing slurry feeding box 19 in front of the reinforcing slurry metering pump 20 in the rotation process of the platform.

Further, the prepared reinforcing slurry is pressed into the reinforcing slurry spraying pipe 27 through the reinforcing slurry metering pump 20, and due to the existence of pressure, the reinforcing slurry can be sprayed out through the reinforcing slurry spraying head on the reinforcing slurry spraying pipe 27, and the slurry is sprayed to the inner wall surface of the mold in a linear shape through the liquid distribution effect of the reinforcing slurry liquid distribution plate 30.

Furthermore, because the whole subsequent material spraying device is installed on a rotary platform 32, the rotary platform 32 is controlled by a platform speed regulating rotating machine 34, along with the rotation of the rotary platform 32, the slurry is uniformly distributed on the whole upper end flange surface and the tail end sealing surface, and simultaneously the rotating speed is controlled, so that the rotation of the platform during quantitative slurry spraying is complete, namely, the rotating cycle and the position of the rotary platform 32 are set to be linked with the discharge reinforcing slurry control valve 15 under the reinforcing slurry high-position quantitative slurry preparing groove 11, when the rotary platform 32 reaches the linkage set position, the discharge reinforcing slurry control valve 15 under the reinforcing slurry high-position quantitative slurry preparing groove 11 is closed to stop feeding, thereby ensuring the uniform coating and spraying of the reinforcing slurry. Meanwhile, the accurate control of the strengthening position of the ceramic fiber pipe is realized by controlling the strengthening slurry spray head and the position corresponding to vacuum suction, so that the stability of the filtering area of the middle section is ensured, and the quality of the ceramic fiber pipe is further improved.

Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.