Carbon molecular sieve manufacturing process and crushing device
阅读说明：本技术 一种碳分子筛制造工艺及破碎装置 (Carbon molecular sieve manufacturing process and crushing device ) 是由 沈建炳 于 2020-05-25 设计创作，主要内容包括：本发明涉及碳分子筛制造工艺技术领域,尤其是一种碳分子筛制造工艺及破碎装置,依次包括以下步骤,破碎：将块状花泥投入破碎机；高温烘烤：将破碎后的酚醛树脂泡沫加入加热炉胆,进行烘烤；球磨：把高温烘烤过后的酚醛树脂泡沫加入球磨机；制条：酚醛树脂泡沫微粉、酚醛树脂液、煤焦油、水按一定比例进行混合,再通过挤条机成型；碳化：把已经成型的条形颗粒置于温度700-800度的高温连续炉内进行升温加工,在炉中通入适量N2进行保护；沉积调孔：将碳化后的的半成品放入工业电炉内沉积加工,利用气体活化法通入活化剂,在700-800度的高温下活化剂裂解后分子沉积于碳分子筛微孔边缘。本发明能够有效提高碳分子筛的产量,值得推广。(The invention relates to the technical field of carbon molecular sieve manufacturing processes, in particular to a carbon molecular sieve manufacturing process and a crushing device, which sequentially comprise the following steps: putting the blocky flower mud into a crusher; and (3) high-temperature baking: adding the crushed phenolic resin foam into a heating furnace pipe, and baking; ball milling: adding the phenolic resin foam baked at high temperature into a ball mill; preparing strips: mixing the phenolic resin foam micro powder, the phenolic resin liquid, the coal tar and the water according to a certain proportion, and forming by a strip extruding machine; carbonizing: placing the formed strip-shaped particles in a high-temperature continuous furnace at the temperature of 700 ℃ and 800 ℃ for heating processing, and introducing a proper amount of N2 into the furnace for protection; depositing and adjusting pores: and (3) putting the carbonized semi-finished product into an industrial electric furnace for deposition processing, introducing an activating agent by using a gas activation method, and depositing molecules on the edges of micropores of the carbon molecular sieve after the activating agent is cracked at the high temperature of 700-800 ℃. The method can effectively improve the yield of the carbon molecular sieve, and is worthy of popularization.)
1. A carbon molecular sieve manufacturing process is characterized by sequentially comprising the following steps of:
s1: crushing: the raw material is flower mud, and the blocky flower mud is put into a crushing device and crushed into small blocks;
s2: and (3) high-temperature baking: adding the crushed phenolic resin foam into a heating furnace pipe, and baking for 3-4 hours at the temperature of 400 ℃ and 500 ℃ in an industrial electric furnace;
s3: ball milling: adding the phenolic resin foam baked at high temperature into a ball mill, and carrying out wipe grinding on the phenolic resin foam for 12-18 hours;
s4: preparing strips: mixing the phenolic resin foam micro powder, the phenolic resin liquid, the coal tar and the water according to a certain proportion, uniformly stirring, and forming by a strip extruding machine to obtain strip-shaped particles with the diameter of 1.1-1.8mm and the length of 2-5 mm;
s5: carbonizing: placing the formed strip-shaped particles in a high-temperature continuous furnace at the temperature of 700-800 ℃ for heating processing, introducing a proper amount of N2 into the furnace for protection, and enabling carbonized products to generate micropores with uniform distribution in a series of decomposition polymerization reactions;
s6: depositing and adjusting pores: and (3) putting the carbonized semi-finished product into an industrial electric furnace for deposition processing, introducing benzene by using a gas activation method, cracking the benzene by using an activating agent at the high temperature of 700 plus one 800 ℃, and depositing molecules on the edges of micropores of the carbon molecular sieve to form an ideal micropore structure, thereby obtaining a qualified carbon molecular sieve product.
2. The carbon molecular sieve manufacturing process according to claim 1, wherein the flower mud is made of phenolic resin foam, and the diameter of the broken phenolic resin foam is less than 3 mm.
3. The process of claim 1, wherein the phenolic resin foam after the step of S2 has a moisture content of less than 0.5%.
4. The process of claim 1, wherein the phenolic resin foam is milled to a fine powder of 400-1000 mesh by wipe after the ball milling step of S3.
5. The carbon molecular sieve manufacturing process according to claim 1, wherein the mass ratio of the phenolic resin foam micro powder to the phenolic resin liquid to the coal tar to the water is 1: 0.4: 0.5: 0.15.
6. the crushing device according to claim 1, comprising a base block (1) and characterized in that an arc-shaped groove (8) is formed in one side of the top end of the base block (1), a supporting frame (4) is fixedly connected to the top end of the base block (1), a telescopic cylinder (5) is fixedly connected to one end, far away from the base block (1), of the supporting frame (4), a mounting frame (6) is fixedly connected to the movable end of the telescopic cylinder (5), a rolling disc (7) is rotatably connected to the inner side of the mounting frame (6), a motor (3) is fixedly mounted on the side of the mounting frame (6), an output shaft of the motor (3) is fixedly connected with the rolling disc (7), at least one annular groove (12) is formed in the side of the rolling disc (7), the groove width of the annular groove (12) is not greater than 3mm, and a cutting portion (9).
7. The crushing device according to claim 6, characterized in that a connecting block (14) is fixedly connected to the inner side of the mounting frame (6) opposite to the rolling disc (7), and a first stripping block (141) and a second stripping block (142) are fixedly connected to the connecting block (14) opposite to the annular groove (12) and the cutting part (9) of the rolling disc (7), respectively.
8. A crushing plant according to claim 6, characterized in that the side of the base block (1) is detachably connected with a side plate (2).
Technical Field
The invention relates to the technical field of carbon molecular sieve manufacturing processes, in particular to a carbon molecular sieve manufacturing process and a crushing device.
Background
The carbon molecular sieve is an adsorbent on a PSA (pressure swing adsorption) nitrogen preparation device, nitrogen is prepared by separating from air by adopting a PSA principle, the nitrogen-preparing carbon molecular sieve is a novel activated carbon almost only containing uniform micropores with the diameter of several angstroms, the pore characteristics can bear the endowment to the carbon molecular sieve for selecting the adsorption performance according to the pore size, the molecular size and the shape of the gas to be adsorbed, and by utilizing the characteristics, the nitrogen-preparing carbon molecular sieve is widely applied to various gas separation processes.
Disclosure of Invention
The invention aims to solve the defect that the production process of the carbon molecular sieve in the prior art needs more time, and provides a carbon molecular sieve manufacturing process and a crushing device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing process of a carbon molecular sieve is designed, and the manufacturing process sequentially comprises the following steps: s1: crushing: the raw material is flower mud, and the block flower mud is put into a crusher and crushed into small blocks;
s2: and (3) high-temperature baking: adding the crushed phenolic resin foam into a heating furnace pipe, and baking for 3-4 hours at the temperature of 400 ℃ and 500 ℃ in an industrial electric furnace;
s3: ball milling: adding the phenolic resin foam baked at high temperature into a ball mill, and carrying out wipe grinding on the phenolic resin foam for 12-18 hours;
s4: preparing strips: mixing the phenolic resin foam micro powder, the phenolic resin liquid, the coal tar and the water according to a certain proportion, uniformly stirring, and forming by a strip extruding machine to obtain strip-shaped particles with the diameter of 1.1-1.8mm and the length of 2-5 mm;
s5: carbonizing: placing the formed strip-shaped particles in a high-temperature continuous furnace at the temperature of 700-800 ℃ for heating processing, introducing a proper amount of N2 into the furnace for protection, and enabling carbonized products to generate micropores with uniform distribution in a series of decomposition polymerization reactions;
s6: depositing and adjusting pores: and (3) putting the carbonized semi-finished product into an industrial electric furnace for deposition processing, introducing benzene by using a gas activation method, cracking the benzene by using an activating agent at the high temperature of 700 plus one 800 ℃, and depositing molecules on the edges of micropores of the carbon molecular sieve to form an ideal micropore structure, thereby obtaining a qualified carbon molecular sieve product.
Preferably, the flower mud is made of phenolic resin foam, and the diameter of the broken phenolic resin foam is smaller than 3 mm.
Preferably, the phenolic resin foam after the step of S2 has a moisture content of less than 0.5%.
Preferably, after the ball milling in the step S3, the phenolic resin foam is milled by wipe to obtain a fine powder of 400-1000 mesh.
Preferably, the mass ratio of the phenolic resin foam micro powder to the phenolic resin liquid to the coal tar to the water is 1: 0.4: 0.5: 0.15.
preferably, breaker includes the base block, open base block top one side has the arc wall, base block top fixedly connected with support frame, the one end fixedly connected with telescopic cylinder of base block is kept away from to the support frame, telescopic cylinder expansion end fixedly connected with mounting bracket, the mounting bracket inboard is rotated and is connected with the dish of rolling, mounting bracket side fixed mounting has the motor, the output shaft and the dish fixed connection of rolling of motor, it has at least one ring channel to roll the side of the dish and open, the groove width of ring channel is not more than mm, dish side fixedly connected with cutting portion rolls.
Preferably, the inner side of the mounting frame is fixedly connected with a connecting block at a position opposite to the grinding disc, and the annular groove and the cutting part in the connecting block are respectively and fixedly connected with a first stripping block and a second stripping block.
Preferably, the side surface of the base block is detachably connected with a side plate.
The carbon molecular sieve manufacturing process provided by the invention has the beneficial effects that:
in the early stage of phenolic resin foam carbonization, a crushing device is used for rapidly crushing phenolic resin foam into particles with the diameter smaller than 3mm, so that the time spent in the whole process flow can be reduced;
the improvement makes the moisture content in the phenolic resin foam lower than 0.5%, is convenient for ball milling in the later stage, and reduces the time spent by the whole process flow.
Drawings
Fig. 1 is a process flow diagram of a carbon molecular sieve manufacturing process according to the present invention.
FIG. 2 is a schematic structural diagram of a crushing device used in a carbon molecular sieve manufacturing process according to the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a partial side view of the mount of FIG. 2;
fig. 5 is a partial sectional view at the base block of fig. 2.
The automatic peeling device comprises a base block 1, a side plate 2, a
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments and the flowcharts 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.
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