KR102554473B1 - Device for producing a pellet-type catalyst equipped with a wheel-type catalyst cutter - Google Patents

Abstract

The present invention provides a wheel-type catalyst cutting machine equipped with a wire for cutting to cut a catalyst extruded body extruded and linearly moving through an extruder in a continuous process at regular intervals to provide a pellet-type extruded body.
The wheel-type catalyst cutting machine of the present invention is designed to secure a space between the cutting rotating shaft and the wire for cutting, which does not obstruct the straight movement of the catalyst extruded body being cut and the falling movement of the cut pellet-type extruded body. By controlling the rotational speed of the wheel-type cutter in conjunction with the extrusion speed of the catalyst extruded body, it is possible to cut the rectangular plane through the cutting wire.

Description

Pellet-type catalyst manufacturing apparatus equipped with a wheel-type catalyst cutter {Device for producing a pellet-type catalyst equipped with a wheel-type catalyst cutter}

The present invention relates to a pellet-type catalyst manufacturing apparatus equipped with a wheel-type catalyst cutter, and more particularly, by cutting a straight-moving catalyst extruded body extruded through an extruder in a continuous process at regular intervals with a wheel-type catalyst cutter to cut a right angle cut surface. It relates to a pellet-type catalyst manufacturing apparatus for producing a pellet-type catalyst having.

In general, in extrusion molding, raw materials are introduced through a hopper on one side, compressed by rotation of a screw, pushed to a mold (ie, die or mold) on the other side, and discharged through the mold. It refers to a processing method in which a molded product of a certain shape is manufactured in the process of being molded, and the molded product is cooled and solidified to continuously produce a product.

An extrusion molding machine that performs such extrusion molding is usually provided with a screw rotatably in a case in a horizontal direction, a hopper for inputting raw materials is provided on the inlet side formed on the front side of the screw, and formed on the rear side of the screw At the exit side, a mold having an extrusion port for forming a molded article of a certain shape is provided for coupling.

Therefore, when the raw material is injected through the hopper, the injected raw material is moved toward the mold by the pressing force according to the rotation of the screw, and is molded into a molded body of a certain shape while passing through the extrusion hole formed in the mold.

Korean Patent Registration No. 10-1158554 discloses a catalyst pellet manufacturing apparatus using an extruder for catalyst production and a cutting unit coupled to a transfer unit. Since the catalyst extruded body transported on the conveying unit is cut by the rotating cutting unit, the cutting speed is slow and it takes a lot of time.

Although there is a vertical movement type catalyst cutter shown in FIG. 3 (a) as a catalyst cutter capable of continuous production at high speed, if the catalyst extruded body is cut by a planar cutting blade vertically moving in the direction perpendicular to the extrusion direction of the extruded body, , It is impossible to cut perpendicular planes, and the faster the extrusion speed, the more obliquely cut.

The present invention has been devised to improve the above problems, and is to provide a wheel-type catalyst cutting machine equipped with a wire for cutting, designed to enable rectangular plane cutting and high continuous productivity regardless of the extrusion speed.

A first aspect of the present invention is a wheel-type catalyst cutting machine equipped with a wire for cutting to cut a catalyst extruded body extruded through an extruder in a continuous process and moving linearly at regular intervals to provide a pellet-type extruded body, comprising a cutting rotary shaft and It is designed to secure a space between the wires for cutting that does not obstruct the straight movement of the catalyst extruded body being cut and the falling movement of the cut pellet-type extruded body, and interlocks with the extrusion speed of the catalyst extruded body to be cut to form a spinning wheel. Provided is a wheel-type catalytic cutter characterized in that it is possible to cut a right angle plane through a wire for cutting by adjusting the rotational speed of the cutter.

A second aspect of the present invention is a pellet-type catalyst manufacturing apparatus equipped with an extruder for catalyst production and the wheel-type catalyst cutter of the first aspect, which is extruded through an extruder in a continuous process to produce a straight-moving catalyst extruded body by the wheel-type catalyst cutter. It provides a pellet-type catalyst manufacturing apparatus characterized by manufacturing a pellet-type catalyst having a right-angled cut surface by cutting at regular intervals.

The third aspect of the present invention is a pellet-type extrudate by cutting an extruded body that is extruded through an extruder in a continuous process and moving in a straight line at a right angle through a wire for cutting at regular intervals using a wheel-type catalyst cutter of the first aspect. It provides a method for producing a pellet-type catalyst having a right-angle cut surface, characterized by producing a pellet-type catalyst from a pellet-type extruded body having a right-angle cut surface.

A fourth aspect of the present invention is a pellet-type extruded body by cutting an extruded body that is extruded through an extruder in a continuous process and moving in a straight line at a right angle through a cutting wire at regular intervals using a wheel-type catalyst cutter of the first aspect. Provided, preparing a pellet-type catalyst from a pellet-type extrudate having a right-angle cut surface, and filling at least a portion of the reactor with a pellet-type catalyst having a right-angle cut surface to uniformly control the fluidization of the reactant fluid while suppressing the occurrence of channeling. A method for manufacturing a pellet-type catalytic reactor is provided.

A fifth aspect of the present invention is a method for providing a pellet-type extruded body having a right-angle cut surface, using a wheel-type cutter equipped with a cutting wire, extruded through an extruder in a continuous process to produce an extruded body that moves linearly. Cut at regular intervals, but the wheel-type cutter is designed to secure a space between the cutting rotation axis and the wire for cutting, which does not obstruct the straight movement of the extruded molding body being cut and the falling movement of the cut pellet-type extruded molding body, Provided is a method for providing a pellet-type extruded product, characterized in that it is possible to cut a right-angled plane through a wire for cutting by adjusting the rotational speed of a wheel-type cutter in conjunction with the extrusion speed of the target extruded product.

Hereinafter, the present invention will be described.

The present invention is characterized by using a wheel-type catalyst cutting machine equipped with a wire for cutting, which is designed to secure a space that does not obstruct the straight movement of the catalyst extruded body being cut and the falling movement of the cut pellet-type extruded body. When using the wheel-type catalytic cutting machine according to the present invention, (i) rectangular plane cutting is possible regardless of the extrusion speed, and (ii) continuous productivity is high.

As illustrated in FIG. 2, the wheel-type catalytic cutting machine according to the present invention includes a cutting rotation shaft rotated by a driving unit; Wheels installed side by side on both sides of the cutting axis; and two or more cutting wires installed on the outer circumferential surface of the empty space formed between both wheels.

Due to the use of cutting wire on the outer circumferential surface of the empty space formed between both wheels, it is possible to secure a space that does not obstruct the linear motion of the extrudate being cut and the falling motion of the cut pellet-type extrudate. As shown in FIG. 3 (b), in the case of the wheel-type cutting machine, the pellet-type extruded material cut as shown by the gray arrow is free to fall.

Figure 3 (b) illustrating the operating principle of the wheel-type catalyst cutting machine according to the present invention, while the pellet-type extruded body ① cut by the cutting wire ① is moving in a falling motion, ② by the cutting wire ② It shows the moment when the pellet-type extruder is being cut. In this way, the wheel-type cutter according to the present invention can secure a space that does not obstruct the straight movement of the catalyst extruded body being cut and the falling movement of the cut pellet-shaped extruded body.

The wheel-type cutting machine according to the present invention can be designed to freely adjust the number of wires for cutting mounted on both wheels as needed. In addition, since the cutting wheel-type catalyst cutting machine of the present invention uses a cutting wire to secure a space that does not obstruct the linear movement of the extruded body of the catalyst being cut and the falling movement of the cut pellet-type extruded body, it is possible to secure the cut pellet-type extrusion There is almost no problem of scattering of the molded body. For example, when the rotational speed is increased, the pellet-type molded body cut by the first cutting wire falls and collides with the second cutting wire, which can cause scattering problems by reducing the number of cutting wires per wheel. can be adjusted

On the other hand, when the catalyst extruded body is cut at regular intervals, if the cut surface becomes oblique, when the pellet-type catalyst prepared therefrom is filled in the reactor to drive the catalytic reaction, the fluidization of the reactant fluid is uneven and the edge strength is weak, making it easy to break. Furthermore, channeling may occur because the pellet-type catalyst is not evenly filled in the reactor.

As shown in Figures 2 and 3 (b), in the spinning wheel cutter of the present invention, after the cutting wire passes while one cutting surface is formed in the longitudinal extruded body having a thickness, a part of the cutting surface and the cutting wire are physically Since there is no contact, if the rotational speed of the wheel-type cutter is adjusted in conjunction with the extrusion speed, it is possible to cut the right angle plane through the cutting wire. That is, it is possible to cut a right angle plane by adjusting the extrusion linear speed and the circular motion angular speed of the cutting wire. For example, the faster the extrusion speed, the higher the rotational speed.

Therefore, the wheel-type cutting machine of the present invention can cut a right angle plane using a cutting wire regardless of the extrusion speed by using the rotational circular motion of the wheel.

In addition, as shown in FIG. 1, the wheel-type catalytic cutting machine of the present invention can adjust the angle not only by adjusting the circular motion speed, but also by adjusting the position of the central axis of rotation (cutter axis) of the wheel or the diameter of the wheel. The cut pellet extrudates can be provided with right angle cuts.

On the other hand, as shown in Figure 3 (a), when the extruded body comes out from the extruder of the extruder in a straight direction at high speed, cutting the extruded body with a face cutter results in diagonal cutting and perpendicular cutting is impossible. When the extrusion rate is slow, the continuous productivity performance deteriorates. Unlike the wheel-type cutter of the present invention equipped with a wire for cutting, the rotary cutter combined with the plane cutter also cannot cut the right angle plane, and the faster the extrusion speed, the more the problem of diagonal cutting cannot be solved.

In the case of using the planar cutter in a vertical or rotational motion, a scattering problem occurs due to physical contact between a portion of the cutting surface and the planar cutter after the planar cutter passes while the cutting surface of one extrudate is formed. Therefore, the face type cutter can be laid diagonally for right angle cutting, but in this case, the up and down movement of the face type cutter also causes obstacles to the falling movement of the cut pellet type extrudate, resulting in It is difficult to solve the scattering problem at the same time.

The wire for cutting must be extruded through an extruder in a continuous process and have high strength to cut an extruded body moving in a straight line. The wire for cutting can easily cut the extruded product without sticking thereto.

The wheel-type cutting machine according to the present invention may be designed so that the cutting wires mounted on both wheels can be freely adjusted and/or replaced as needed, and the cutting strength is adjusted by adjusting the material/thickness/tension of the cutting wires. can be adjusted.

Non-limiting examples of the wire material for cutting include a polymer material, a carbon material, a metal material, and the like. In the case of a metal wire, it can be cut and processed by flowing an electric current.

The cross-sectional thickness of the extruded body to be cut is 0.1 to 30 cm, and the cross-sectional thickness of the wire for cutting may be 0.01 to 10 mm, but is not limited thereto. The thinner it is, the better, but the strength can be weakened, and if it is thick, the cut surface can be crushed.

The method for producing a pellet-type catalyst having a right-angled cut surface according to the present invention is a continuous process in which an extruded body that is extruded through an extruder and moves linearly is cut at regular intervals through a wire for cutting using the above-described spinning wheel-type catalyst cutter of the present invention. To provide a pellet extrudate by cutting the perpendicular face, and, if necessary, to prepare a pellet catalyst having a right angle cut face from the pellet extrudate having a right angle cut face through various subsequent processes.

According to the present invention, the pellet-type extrudate having a right-angle cut surface by cutting the extrudate with a wheel-type catalyst cutter at right angles can be used as a catalyst or catalyst support through an additional process, if necessary. Non-limiting examples of the catalyst include a catalyst for preparing a vanadium electrolyte, a PFC decomposition catalyst, a reforming catalyst, and an ammonia decomposition catalyst.

In addition, the pellet-type catalyst manufacturing apparatus according to the present invention includes an extruder for catalyst production and the above-described wheel-type catalyst cutter of the present invention, and the catalyst extruded body that is extruded through the extruder in a continuous process and moves in a straight line is converted into a wheel-type catalyst cutter. It is possible to provide a pellet-type extruded body having a right-angled cutting surface by cutting at regular intervals.

In the pellet-type catalyst manufacturing apparatus according to the present invention, since the pellet-type extruded material does not scatter and falls at a certain position immediately after cutting, it can be easily transported and collected by installing a transfer unit at the falling position. Pellet-type extrudates dropped to the conveying part may be partially cooled and hardened by contacting with the outside air during conveying.

In general, pellet-type catalysts are manufactured through raw material kneading, extruding, cutting, drying, and firing processes, and in the cutting process, the catalyst extruded body is cut at right angles by the above-described spinning wheel-type catalyst cutter of the present invention, so that the right-angle cut surface It is possible to manufacture a pellet-type extruded body having.

In general, drying for the pellet-type extruded body may be performed at 10 ° C to 150 ° C for 1 to 100 hours, and firing may be performed at 400 to 1500 ° C for 1 to 24 hours depending on the conditions of use of the catalyst.

For example, the pellet-type extruded body prepared according to the present invention can be supported by impregnation with a solution in which metal components are dissolved to prepare a pellet-type catalyst.

The metal component to be supported may be a catalyst active component or a catalyst auxiliary component. As the catalytically active component, it is preferable that it is a transition metal. The type of metal may be variously selected depending on the type of reaction in which the catalyst is used. For example, in the case of a hydrocarbon reforming catalyst for producing syngas, it may be one or more metal components selected from Ni, Co, Pt, Ru, Rh, and the like. In the case of a nickel-based catalyst for a reforming reaction for producing syngas from hydrocarbons, non-limiting examples of cocatalyst components include cobalt (Co), Ca, La, Pt, Ru, Sr, Ce, Na, K, and the like.

The metal component-providing precursor to be supported is not particularly limited, but is preferably soluble in water or alcohol. The metal-containing precursor may be in the form of a nitrate, alkoxide, organic acid salt, or organometallic of the metal. In addition, metal carbonates, metal chlorides, metal nitrates, organometallic salts (e.g., acetates, oxalates, citrates), oxide salts, oxyhydroxide salts, carbonates, nitrosylnitrates, nitrates, hydroxides, oxalates, carboxylates , sulfate, ammonium, and the like.

The metal-containing catalyst precursor aqueous solution may further include a precursor aqueous solution containing a cocatalyst component. In this case, the precursor containing the cocatalyst component may also be in the form of a metal nitrate, alkoxide, organic acid salt, or organometallic.

Since the catalyst prepared according to the present invention may be in a non-reduced state, reduction to a metal may be required when used as a catalyst for a reaction.

On the other hand, the method for manufacturing a pellet-type catalytic reactor according to the present invention

An extruded body extruded through an extruder in a continuous process and moving in a straight line is cut at right angles at regular intervals through a wire for cutting using a wheel-type catalyst cutter of the first aspect to provide a pellet-type extruded body,

A pellet-type catalyst is prepared from a pellet-type extruded body having a right-angle cut surface,

It is characterized in that the fluidization of the reactant fluid can be uniformly controlled while suppressing the occurrence of channeling by filling at least a part of the reactor with a pellet-type catalyst having a right-angled cut surface.

The present invention can provide a catalyst reactor in which the fluidization of a reactant fluid can be uniformly controlled and the channeling phenomenon of the fluid can be suppressed by filling at least a part of the reactor with the pellet-type catalyst having the perpendicular cut surface. Therefore, the catalytic reactor of the present invention can solve the problem that the reaction efficiency decreases due to the increase in the channeling phenomenon (the drift phenomenon in which the fluid flows toward the lower density side) as the flow rate in the catalytic reactor increases.

The reactor may be in the form of a polygonal or circular tube, or may be a shell-and-tube type reactor, and a pellet type catalyst having right-angled cross section may be packed in a tube and/or shell.

The reactor of the present invention can be applied to all catalytic reactions such as PFCs decomposition reaction, natural gas reforming reaction, and ammonia decomposition reaction, depending on the type of filled pellet catalyst and operating conditions.

Non-limiting examples of the pellet-type catalyst that can be prepared in the present invention and filled in a reactor may include a catalyst, a carrier, and an adsorbent. Thus, the carrier or adsorbent also falls within the scope of the present invention, even if functionally different from the catalyst, as long as it can be produced as a pellet extrudate having a rectangular face. Non-limiting examples of the catalyst include a PFC decomposition catalyst, a reforming catalyst, an ammonia decomposition catalyst, and a catalyst for preparing a vanadium electrolyte.

Regarding the PFC decomposition reaction, the perfluorinated compound (hereinafter 'PFC') is usually a carbon containing perfluorinated compound (PFC) containing two or more fluorines (F), nitrogen-containing PFC (nitrogen It consists of perfluorinated compound (nitrogen perfluoride) and sulfur-containing perfluorinated compound (PFC). Carbon-containing PFCs include saturated and unsaturated aliphatic groups such as CF ₄ , CHF ₃ , CH ₂ F ₂ , C ₂ F ₄ , C ₂ F ₆ , C ₃ F ₆ , C ₃ F ₈ , C ₄ F ₈ , and C ₄ F ₁₀ . There are aliphatic as well as cyclic aliphatic and aromatic perfluorocarbons. Representative nitrogen-containing PFCs include NF ₃ , and examples of sulfur-containing PFCs include SF ₄ and SF ₆ .

Hazardous waste gases emitted from the semiconductor manufacturing process are emitted in a wide variety of types according to each process, and most of them are highly volatile and are composed of components that are harmful to the human body or have a high global warming potential, so removal is required. The catalytic decomposition method is a technology to decompose PFC, which is difficult to decompose, using a catalyst and steam at a low temperature of 800 ° C or less.

The hydrocarbon reforming reaction may vary depending on the type of reforming reaction, but may be performed under conditions of 200 to 1000 °C.

Regarding the reforming reaction, gas resources such as methane, which accounts for most of natural gas, are mainly used as a heat source for power generation or household use, but some are used as raw materials for producing liquid fuels or chemicals. Most of the "methane" conversion reaction for this is through the reforming reaction of "methane," which is a synthesis gas manufacturing process. These syngas are used as raw materials for methanol synthesis, hydrogen production, ammonia production, or synthetic oil production process by Fischer-Tropsch reaction.

The reforming reaction of methane is a reaction in which methane is reacted with water vapor, carbon dioxide, or a mixture thereof to produce syngas (CO + H ₂ ). Since the reforming reaction of methane is a strong endothermic reaction, a lot of heat must be supplied from the outside in order for the methane reforming reaction to occur. The steam reforming reaction of methane takes place at 700-900 °C.

Methods for producing syngas from natural gas include steam reforming of methane (SRM), partial oxidation of methane (POX) using oxygen, and carbon dioxide reforming of methane. reforming of methane (CDR) and steam carbon dioxide reforming (SCR), which is a mixture of steam reforming and carbon dioxide reforming, and the carbon monoxide and hydrogen (H ₂ / CO) ratio may be used differently depending on the optimally required ratio in the subsequent process. In general, when synthesizing gas is produced using natural gas, an inexpensive nickel-based catalyst is used.

Regarding the ammonia decomposition reaction, when introducing clean hydrogen, a hydrogen carrier for storing and transporting hydrogen is required, and ammonia has received the most attention for this role. In addition, ammonia has expanded its use as a carbon-neutral fuel for ships and power generation, and is being reborn as the most popular energy source along with hydrogen. The ammonia decomposition technology for supplying clean hydrogen has a lower reaction temperature than the natural gas reforming method, making it easy to manufacture a reactor with low-cost materials. It is a reactor and catalyst that decomposes ammonia, which is the core of hydrogen production, into nitrogen and hydrogen. Ammonia is decomposed into hydrogen and nitrogen through a catalyst. At this time, it is important to supply the same amount of ammonia to each reactor and maintain the temperature.

In the vanadium redox flow battery (VRFB), electrolyte accounts for the highest proportion among battery component parts (1MW/8MWh system electrolyte price ratio: 52%). Therefore, lowering the price of electrolyte is essential to secure price competitiveness of VRFB. In the currently commercially available VRFB system, 3.5 is operated by injecting (V ⁴⁺ (VO ²⁺ ):V ³⁺ =1:1) electrolyte into the anode and cathode of the VRFB cell. need to develop

The electrolyte solution for VRFB is prepared through a catalytic reaction using V _{2 O 5 , which is the lowest price among several vanadium oxide precursors (V 2 O 5 ,} V ₂ O ₃ , and VOSO ₄ ). V ₂ O ₅ is dissolved in a sulfuric acid solution to ^prepare a 5-valent electrolyte solution (VO ₂₊ ), which is reduced to a 4-valent electrolyte solution (VO ²⁺ ) using oxalic acid.

In addition, the present invention provides a method for providing a pellet-type extrudate having a right-angled cut surface.

Specifically, using a wheel-type cutting machine equipped with a wire for cutting, the extruded body extruded through the extruder in a continuous process and moving in a straight line is cut at regular intervals,

The wheel-type cutter is designed to secure a space between the cutting rotary shaft and the wire for cutting, which does not obstruct the straight motion of the extrudate being cut and the falling motion of the cut pellet-type extrudate,

It is characterized in that it is possible to cut the right angle plane through the cutting wire by adjusting the rotational speed of the wheel-type cutter in conjunction with the extrusion speed of the extruded object to be cut.

The wheel-type cutter includes a cutting rotation axis rotated by a drive unit; Wheels installed side by side on both sides of the cutting axis; And it may be provided with two or more wires for cutting installed on the outer circumferential surface of the empty space formed between both wheels.

Depending on the rotational speed of the wheel-type cutter, the scattering problem that may occur when the extrudate cut by the n-1th cutting wire falls and collides with the nth cutting wire can be solved by adjusting the number of cutting wires. there is.

The present invention uses a wheel-type cutter equipped with a cutting wire to cut an extruded body that is extruded through an extruder in a continuous process and moves in a straight line at regular intervals, enabling high-speed cutting at right angles through the cutting wire. Since the pellet-type extrudate can be dropped on the conveying part without scattering, the work speed is greatly improved, and the pellet-type catalyst is prepared from the pellet-type extruder having a right-angle cutting surface, and the fluidization of the reactant fluid can be uniformly controlled by filling the reactor. And it is possible to provide a catalyst reactor in which the channeling phenomenon of the fluid is suppressed.

1 is a side view of a pellet-type catalyst manufacturing apparatus according to one embodiment of the present invention.
2 is a perspective view of a wheel-type catalyst cutter according to an embodiment of the present invention.
Figure 3 is a view explaining the operating principle of the wheel-type catalytic cutting machine of the present invention compared to the conventional up-and-down motion type cutting machine.
4 is a side cross-sectional view of an extruder for preparing a catalyst disclosed in Korean Patent Registration No. 10-1158554.

Hereinafter, a pellet-type catalyst manufacturing apparatus according to the present invention will be described in more detail with reference to the accompanying drawings.

1 illustrates an apparatus for producing a pellet-type catalyst according to one embodiment of the present invention.

Pellet-type catalyst manufacturing equipment is installed in an extruder that extrudes raw materials for catalyst production to produce molded bodies, a wheel-type cutter installed on a frame to cut molded bodies discharged through the extruder, and a position where the cut pellet-type catalysts fall freely. A driving unit for driving the transfer unit, the extruder and the wheel cutter, and a collection container for collecting the cut pellet-shaped moldings transported through the transfer unit.

At this time, when the catalyst extruded body that is extruded through an extruder in a continuous process and moves linearly is cut at regular intervals with a wheel-shaped catalyst cutter, a pellet-type extruded body having a right-angled cut surface is provided. In addition, if the wheel-type catalyst cutter is used, since the pellet-type extruded material does not scatter and falls at a certain position immediately after cutting, it can be easily transported and collected in a collection container by installing a transfer unit at the drop position.

The position of the cutting axis of the wheel-type cutter relative to the extruder axis of the extruder can be adjusted to be the same, higher or lower.

If the position is the same, it can perform the same role as when the cutter comes down at a right angle. If it is placed high, it is the same as the effect of the cutter moving in the extrusion direction, so if the extrusion speed is fast, it is possible to cut the perpendicular plane. It can be cut diagonally, so it can be applied in various ways depending on the purpose.

Referring to FIG. 4, a conventional extruder for preparing a catalyst applicable to the present invention will be described.

The extruder 20 includes a case 21 having an inlet 21b, a screw 22 rotatably installed inside the case 21, a rotating part 23 for rotating the screw 22, and a case 21 Equipped with a mold 24 installed on the front end of the.

The case 21 is formed in a cylindrical shape with an accommodation space 21a in which raw materials for catalyst production can be accommodated. An inlet 21b is provided on the outer circumferential surface of the rear upper side of the case 21 so that raw materials for catalyst production can be input into the accommodation space 21a, and the front surface of the case 21 is provided with materials for catalyst production accommodated in the accommodation space 21a. It is preferable to be formed open so that it can be discharged to the mold 24 to be described later.

Meanwhile, the case 21 further includes a hopper 21c so that raw materials for catalyst production can be easily introduced into the receiving space 21a through the inlet 21b.

The hopper 21c is installed on the outer circumferential surface of the case 21 at a position corresponding to the inlet 21b, the lower end communicates with the inlet 21b, and the raw material for catalyst production is injected into the inlet 21b through the hopper 21c. It is formed to be penetrated in the vertical direction. The hopper 21c is preferably formed such that its cross-sectional area increases toward the top so that the raw material for catalyst production can be easily introduced into the inlet 21b.

The screw 22 is rotatably installed in the receiving space 21a, and a plurality of spiral pressure blades 25 are formed on the outer circumferential surface along the longitudinal direction. The screw 22 is rotated in the accommodation space 21a by a rotation unit 23 described later, pressurizes the raw material for catalyst production input through the inlet 21b, and transports it forward.

The rotating part 23 is installed at the end of the screw 22 to supply rotational force to the screw 22 . The rotation unit 23 is installed between the rotation unit 23a, the end of the screw 22 and the rotation unit 23a, and reduces the rotational force generated through the rotation unit 23a and transmits it to the screw 22. A portion 23b is provided.

Although the rotation unit 23a has been described as being an electric motor driven by electric power in the example shown in the drawing, the rotation unit 23a is not limited to the illustrated example and is configured to provide rotational force to the screw 22. Any element is possible.

Although not shown in the figure, the reduction part 23b has a different number of teeth and has a plurality of mutually meshed gears to reduce the rotational force of the rotation unit 23a and transmit it to the screw 22.

The mold 24 is installed at the front end of the case 21, and an extrusion space 24a communicating with the accommodation space 21a is formed therein. At the front end of the mold 24, an extrusion port 24b communicating with the extrusion space 24a is formed.

The extrusion space 24a is formed so that the cross-sectional area becomes smaller toward the front end so that the raw material for catalyst production can be easily extruded, and the extrusion hole 24b is formed in a size corresponding to the cross section of the molded body 11 to be molded. desirable.

When the raw material for catalyst production is injected into the inlet 21b by the hopper 21c, the injected raw material moves in the direction of the mold 24 by the pressing force according to the rotation of the screw 22, and the extrusion port 24b formed in the mold 24 ) It is molded into a molded body 11 of a certain shape while passing through.

Applications of the pellet-type catalyst that can be prepared in the present invention include PFC decomposition reaction, methane reforming reaction, ammonia decomposition reaction, and vanadium electrolyte preparation reaction. Therefore, a raw material for preparing a catalyst capable of serving as a catalyst for each reaction may be introduced into the extruder.

On the other hand, although not shown in the drawing, two frames are installed facing each other in front of the extruder 20.

Referring to Figs. 1 to 3, the wheel-type cutting machine of the present invention will be described.

The wheel-type cutter includes a cutting rotation axis rotated by a drive unit; Wheels installed side by side on both sides of the cutting axis; and two or more cutting wires installed on an outer circumferential surface of an empty space formed between both wheels. The wire for cutting completes the shape of the spinning wheel with the line connecting the wheels.

Although not shown in the drawings, the wheel-shaped cutter is installed on the frame in front of the extruder and cuts the molded body 11 extruded through the extruder 20 as soon as it comes out of the extruder 24b.

Both ends of the cutting rotary shaft are rotatably installed in a frame corresponding to the upper side of the extruder shaft. The drive unit generating rotational force in the wheel-type transmitter may be an electric motor operated by electric power, but is not limited thereto, and anything capable of generating rotational force may be used.

Wheels installed side by side on both sides of the cutting rotation shaft are formed to have a predetermined radius and can rotate based on the same center line as the rotation center line of the cutting rotation shaft.

Referring to FIG. 2, a wheel installed side by side on both sides of the cutting rotation shaft and a cutting wire connecting the wheel are installed spaced apart from each other along the circumferential direction on the outer circumferential surface of the empty space formed between the two wheels. The cutting wire is rotated by the cutting rotating shaft, and the molded body 11 passing through the cutting wire is cut at a right angle at predetermined intervals. The extrudate can be easily cut without sticking to the cutting wire.

As shown in FIG. 3(b), the wheel-type catalytic cutting machine of the present invention adjusts the rotational speed of the cutting machine in conjunction with the extrusion speed of the extruded object to be cut, that is, by adjusting the linear speed and angular speed, through the wire for cutting at right angles. It is easy to provide cutting edge.

Since the pellet-type extrudates do not scatter and fall at a certain position immediately after being cut with the wheel-type catalyst cutter, they can be easily transported and collected by installing a transfer unit at the drop position, thereby saving time required for work. In addition, since it can be partially cooled and cured in contact with outside air during transport, it is possible to save a separate drying process time for the pellet-type extruded article.

Referring to Figure 1, the transfer unit will be described in detail.

The conveying part transfers the pellet-type extruded body having a right-angled surface, which is extruded through the extruder 20 and cut by the wheel-type cutter, to the collection container. The transfer unit transports the drive drum shaft and the driven drum shaft rotatably installed in the frame at a mutually spaced position in the front of the extruder 20, and the pellet-type extruded body wound on the drive drum shaft and the driven drum shaft and cut at right angles. provide a member The driving drum shaft and the driven drum shaft are formed in a cylindrical shape having a predetermined radius so that the transfer member can be wound, and both ends are rotatably installed on the frame, respectively.

The driving drum shaft and the driven drum shaft are preferably positioned below the wheel-shaped cutter so that the conveying member can easily transfer the pellet-type extruded body cut at right angles through the wheel-shaped cutter.

Bearings are installed at both ends of the driving drum shaft and the driven drum shaft, respectively, so that they can rotate easily.

The conveying member is a belt formed to be wound on the outer circumferential surfaces of the driving drum shaft and the driven drum shaft, and rotates in a closed circuit by the driving drum shaft and the driven drum shaft. On the upper surface of the conveying member, the pellet-type extruded material cut at right angles through the wheel-type cutter is seated and transferred without scattering. The conveying member may be composed of a chain rather than a belt.

The collection container is installed below the front end of the conveying member to collect the pellet-type extruded body cut at right angles. It is preferable that the collection container has an inner space to accommodate the cut molded object therein, and has an upper surface open so that the molded object can be easily introduced into the inner space. A plurality of transport wheels may be installed on the lower surface of the collection container so that the collection container can be easily moved.

Using the pellet-type catalyst manufacturing apparatus according to the present invention configured as described above, a method for manufacturing a pellet-type catalyst will be described in detail.

When the raw material for catalyst production is introduced into the inlet 21b of the extruder 20, the introduced raw material is pressurized by the screw 22 and sent forward. The pressurized raw material is discharged through the extrusion port 24b of the mold 24 installed in front of the case 21 and molded into a molded body 11 having a predetermined cross-sectional area.

The molded article 11 extruded by the extruder 20 is cut at predetermined intervals by a wheel-type conveyor installed on the upper side of the conveying member to provide a plurality of catalyst pellets, and is transferred to a collection container by the conveying unit. Catalyst pellets that have undergone a partial drying process during transport in the transfer unit are collected in a collection container and transferred to the next process (drying and firing process, if necessary).

Although the present invention has been described with reference to an embodiment shown in the drawings, this is only exemplary, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom.

Therefore, the true protection scope of the present invention should be defined only by the appended claims.

Claims (14)

A spinning wheel-type catalyst cutting machine equipped with a wire for cutting to provide a pellet-type extruded body that is extruded through an extruder in a continuous process and moves linearly by cutting at regular intervals to provide a pellet-type extruded body that moves,
It is designed to secure a space between the cutting rotary shaft and the wire for cutting, which does not obstruct the straight movement of the catalyst extruded body being cut and the falling movement of the cut pellet extruded body,
By adjusting the rotational speed of the wheel-type cutter in conjunction with the extrusion speed of the catalyst extruded body to be cut, it is possible to cut a right angle plane perpendicular to the direction of linear movement of the catalyst extruded body to be cut through the cutting wire,
a cutting rotary shaft rotated by the drive unit and arranged in a direction perpendicular to the direction of linear motion of the catalyst extruded body to be cut; Wheels installed side by side on both sides of the cutting rotation axis; and two or more cutting wires installed on an outer circumferential surface of an empty space formed between both wheels. delete According to claim 1, according to the rotational speed, the pellet-type extruded material cut by the n-1th cutting wire falls and collides with the n-th cutting wire to prevent scattering problems that may occur by controlling the number of cutting wires. A wheel-type catalytic cutting machine characterized by solving through The wheel-type catalytic cutting machine according to claim 1, characterized in that the rotational angular speed of the cutting wire is adjusted in conjunction with the extrusion linear speed of the extruded body to provide a right-angled cutting surface to the cut extruded body. According to claim 1, it is possible to adjust the circular motion speed of the cutting wire, adjust the position of the central rotation axis and / or adjust the angle by the diameter of the wheel wheel on which the cutting wire is installed, thereby providing a right angle cutting surface to the cut extruded body Characterized by a spinning wheel-type catalytic cutter. A pellet-type catalyst manufacturing apparatus equipped with an extruder for producing catalyst and a wheel-type catalyst cutter according to any one of claims 1 and 3 to 5,
A pellet-type catalyst manufacturing apparatus characterized by manufacturing a pellet-type catalyst having a right-angle cutting surface by cutting a catalyst extruded body extruded through an extruder in a continuous process and moving linearly at regular intervals with a wheel-type catalyst cutter. [Claim 7] The apparatus for producing a pellet-type catalyst according to claim 6, characterized in that the pellet-type extrudate is dropped at a certain position without scattering immediately after being cut by the wheel-type catalyst cutter, and a transfer unit is installed at the drop position. An extruded body that is extruded through an extruder in a continuous process and moves in a straight line is cut at right angles at regular intervals through a wire for cutting using a wheel-type catalytic cutting machine according to any one of claims 1 and 3 to 5. A method for producing a pellet-type catalyst having a right-angle cut surface, characterized in that the pellet-type extrudate is cut to provide a pellet-type extrudate and the pellet-type catalyst is produced from the pellet-type extrudate having a right-angle cut surface. The method according to claim 8, wherein the pellet-type catalyst is prepared through extrusion molding, cutting, drying and firing processes. An extruded body that is extruded through an extruder in a continuous process and moves in a straight line is cut at right angles at regular intervals through a wire for cutting using a wheel-type catalytic cutting machine according to any one of claims 1 and 3 to 5. Cutting the surface to provide a pellet-type extruded product,
Preparing a pellet-type catalyst from a pellet-type extruded body having a right-angled cut surface,
A method for manufacturing a pellet-type catalyst reactor characterized in that fluidization of a reactant fluid can be uniformly controlled while suppressing channeling by filling at least a portion of the reactor with a pellet-type catalyst having a right-angled cut surface. ◈Claim 11 was abandoned when the registration fee was paid.◈ 11. The method according to claim 10, characterized in that the pellet-type catalyst is manufactured through extrusion, cutting, drying and firing processes. In the method of providing a pellet-type extruded body having a right-angled cut surface,
Using a wheel-type cutter equipped with a wire for cutting, the extruded molded body extruded through the extruder in a continuous process and moving linearly is cut at regular intervals to make it fall,
The wheel-type cutter is designed to secure a space between the cutting rotary shaft and the wire for cutting, which does not obstruct the straight motion of the extrudate being cut and the falling motion of the cut pellet-type extrudate,
By adjusting the rotational speed of the wheel cutter in conjunction with the extrusion speed of the extruded object to be cut, it is possible to cut a right angle plane perpendicular to the direction of the linear motion of the extruded object to be cut through the cutting wire,
The wheel-type cutting machine rotates by a drive unit and includes a cutting rotary shaft arranged in a direction perpendicular to the direction of linear motion of the extruded object to be cut; Wheels installed side by side on both sides of the cutting rotation axis; and two or more cutting wires installed on the outer circumferential surface of the empty space formed between both wheels. delete ◈Claim 14 was abandoned when the registration fee was paid.◈ According to claim 12, according to the rotational speed of the wheel-type cutter, the pellet-type extruded material cut by the n-1th cutting wire falls and collides with the n-th cutting wire for cutting. A method for providing a pellet-type extruded product, which is characterized in that it is solved by adjusting the number of wires.

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