Novel vertical dry ice granulator

Abstract

The utility model discloses a novel vertical dry ice pelletizer which comprises a pelletizer body and a pelletizing part, the pelletizing part is connected with an ice outlet, the pelletizing part comprises a compression cylinder, the upper end and the lower end of the compression cylinder are provided with an upper pressing plate and a lower pressing plate respectively, the upper pressing plate is connected with an ice outlet plate part, and a piston rod part is arranged in an inner cavity of the compression cylinder. A first sealing piece and a second sealing piece are arranged on the outer wall of the piston rod component, a groove is formed in the position, located between the first sealing piece and the second sealing piece, of the piston rod component, a magnet not making contact with the inner wall of the compression cylinder is arranged in the groove, and a first limiting switch sensor and a second limiting switch sensor are arranged on the upper portion and the lower portion of the outer wall of the compression cylinder respectively. The inner cavity of the compression cylinder is communicated with a buffer cylinder located on the outer wall of the compression cylinder and provided with a gas outlet. According to the utility model, the magnet cannot be abraded, so that the purity and the quality of discharged dry ice are ensured, the maximum input pressure of liquid carbon dioxide can reach 20MPa, and the speed and the yield of dry ice granulation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dry ice granulator technical field especially relates to a novel vertical dry ice granulator. BACKGROUND

[0002] Carbon dioxide solid commonly known as "dry ice", with the development of industry, dry ice is widely used in food preservation, remove industrial mold equipment on the grease, dirt and other fields. Dry ice manufacturing is to change the snowflake solid under high pressure liquid carbon dioxide, then use the compression mechanism to extrude the snowflake solid into the process of forming. Vertical dry ice granulator has the following advantages: the force is larger in the process of granule pressing, the pressed granule density is high, the particle size consistency is good, provided with dust collection and cooling system, can ensure that the granule machine runs at constant temperature, reduces the granule damage, the whole series is provided with automatic lubrication system, can reduce the labor intensity, the production cost is low, vertical dry ice granulator because it has the above advantages makes it become the ideal selection equipment of user.

[0003] However, the existing vertical dry ice granulator has the following two defects: one, the existing carbon dioxide cavity piston rod in order to detect its in the carbon dioxide cavity in the first two limit position, in its top outside welding a ring magnetic piece, the hardness of the magnetic piece is lower, the magnetic piece with carbon dioxide piston rod reciprocating motion in the carbon dioxide cavity cylinder (304 stainless steel) in, constantly with the carbon dioxide cavity cylinder wall friction, because the hardness of the magnetic piece is far lower than 304 stainless steel, leading to the outer surface of the magnetic piece is constantly worn, the worn magnetic particles can affect the purity and quality of the finished dry ice, also can cause the position accuracy deviation of the photoelectric sensor detecting carbon dioxide piston rod; two, the existing carbon dioxide cavity parts in order to empty the carbon dioxide vapor formed by the evaporation of liquid carbon dioxide in the cavity, copper filter is adopted, but the maximum input pressure of liquid carbon dioxide that copper filter can withstand cannot exceed 12MPa, which limits the yield of dry ice particles. UTILITY MODEL CONTENTS

[0004] In order to solve the existing technology, the magnetic particles produced by the wear of the magnetic piece can affect the purity and quality of the finished dry ice, also can cause the position accuracy deviation of the photoelectric sensor detecting carbon dioxide piston rod, and the maximum input pressure of liquid carbon dioxide that copper filter can withstand cannot exceed 12MPa, limits the yield of dry ice particles The technical problem, the utility model provides the following technical scheme.

[0005] The utility model relates to a novel vertical dry ice granulator, including the granulator body and the granulating component in the granulator body inside, the granulating component is connected with the ice outlet, the granulating component includes the compression cylinder that is equipped with upper pressure plate and lower pressure plate respectively in the upper and lower two ends, the upper pressure plate is connected with the ice outlet board component, the compression cylinder inner chamber is equipped with piston rod component, the piston rod component outer wall is equipped with first sealing piece and second sealing piece, the piston rod component is located the recess that is opened between first sealing piece and second sealing piece, the recess is equipped with the magnet that does not contact with compression cylinder inner wall, the compression cylinder outer wall upper portion and lower portion are equipped with respectively the first limit switch sensor and the second limit switch sensor that monitor the movement of magnet, the compression cylinder inner chamber is connected with the buffer cylinder that is located the compression cylinder outer wall and is equipped with gas outlet.

[0006] As a further technical scheme, the compression cylinder is provided with a plurality of gas outlets, the buffer cylinder is provided with a buffer cavity in communication with the gas outlets, and the buffer cavity is communicated to the gas outlet.

[0007] As a further technical scheme, the compression cylinder is provided with a plurality of gas outlets, the buffer cylinder is provided with a spiral buffer channel in communication with the gas outlets, and the spiral buffer channel is communicated to the gas outlet.

[0008] As a further technical scheme, the magnet is fixed in the recess by metal glue or screws.

[0009] As a further technical scheme, the buffer cylinder is integrally formed with or welded to the compression cylinder.

[0010] As a further technical scheme, the first limit switch sensor and the second limit switch sensor adopt photoelectric sensors.

[0011] The utility model has the advantages that the recess and the magnet are arranged between the first sealing piece and the second sealing piece on the outer wall of the piston rod component, the magnet does not contact the inner wall of the compression cavity during reciprocating movement of the piston rod component, and thus wear does not occur, the accuracy of detection by the limit switch sensor and the control accuracy of the equipment are ensured, the purity and quality of the dry ice are ensured, the buffer cylinder in communication with the gas outlets is connected to the outer wall of the compression cavity, the buffer cylinder can effectively buffer the pressure generated when liquid carbon dioxide enters the compression cylinder, the compression cavity can be well emptied of carbon dioxide vapor formed by evaporation of the liquid carbon dioxide, and the maximum input pressure of the liquid carbon dioxide flowing into the compression cavity can reach 20MPa, and thus the speed and yield of dry ice granulation are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the structure diagram of the novel vertical dry ice granulator of the utility model;

[0013] Figure 2 is the external schematic view of the granulating part of the novel vertical dry ice granulator of the utility model;

[0014] Figure 3 is the cross-sectional schematic view of the compression cylinder of the novel vertical dry ice granulator of the utility model;

[0015] Figure 4 is the schematic view of the piston rod part of the novel vertical dry ice granulator of the utility model;

[0016] Figure 5 is another structural schematic view of the buffer cylinder of the novel vertical dry ice granulator of the utility model;

[0017] In the figure: 1-granulator main body;2-ice outlet;3-granulating part;4-upper pressing plate;5-lower pressing plate;6-compression cylinder;601-liquid inlet;602-gas outlet;7-buffer cylinder;701-gaseous outlet;702-buffer cavity;703-spiral buffer channel, 8-ice plate part;9-piston rod part;901-first sealing member;902-second sealing member;903-groove;904-magnet;10-first limit switch sensor;11-second limit switch sensor. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model. It should be noted that the examples in the utility model and the features in the examples can be combined with each other without conflict.

[0019] In the description of the utility model, it should be understood that the terms "upper", "lower" are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0020] As Figure 1As shown, the present invention discloses a novel vertical dry ice pelletizer, comprising a pelletizer body 1 and a pelletizer assembly 3 located within the pelletizer body 1. The pelletizer assembly 3 is connected to an ice outlet 2 for discharging dry ice from the ice outlet 2. The start switch, hydraulic oil pressure gauge, carbon dioxide pressure gauge, and control equipment within the pelletizer body 1 utilize existing technology and are not further described in detail in this invention.

[0021] like Figure 2 、 Figure 3 and Figure 4 As shown, in a preferred embodiment, the granulation component 3 includes a compression cylinder 6 with an upper pressure plate 4 and a lower pressure plate 5 at its upper and lower ends, respectively. The upper pressure plate 4 is connected to an ice discharge plate 8, which discharges dry ice to the ice outlet 2. A piston rod component 9 is provided within the compression cylinder 6, which reciprocates along the compression cylinder 6. The outer wall of the piston rod component 9 is provided with a first seal 901 and a second seal 902, each of which is an O-ring. A groove 903 is defined between the first and second seals 901, 902. A magnet 904 is positioned within the groove 903, which does not contact the inner wall of the compression cylinder 6. Furthermore, a first limit switch sensor 10 and a second limit switch sensor 11 are provided on the upper and lower outer walls of the compression cylinder 6, respectively, to monitor the movement of the magnet 904. Both the first and second limit switch sensors 10 and 11 are photoelectric sensors.

[0022] Magnet 904 is secured within groove 903 using metal glue or screws. During the reciprocating motion of piston rod 9, magnet 904 does not contact the inner wall of compression cylinder 6. This prevents magnet 904 from wearing out, ensuring the accuracy of detection by first and second limit switch sensors 10, 11, and the control precision of the device, as well as the purity and quality of the dry ice produced.

[0023] like Figure 3 As shown, in a preferred embodiment, the inner cavity of the compression cylinder 6 is connected to a buffer cylinder 7 having a gas outlet 701 located on the outer wall of the compression cylinder 6. The buffer cylinder 7 is integrally formed with the compression cylinder 6 or welded to the compression cylinder 6. The compression cylinder 6 is provided with a plurality of gas outlet holes 602, and the buffer cylinder 7 is provided with a buffer cavity 702 connected to the gas outlet holes 602. The buffer cavity 702 is connected to the gas outlet 701. At this time, the buffer cavity 702 in the buffer cylinder 7 can effectively buffer the pressure generated by the liquid carbon dioxide entering the compression cylinder 6, reducing the pressure on the copper filter. This allows the compression cylinder 6 to effectively empty the carbon dioxide vapor formed by the evaporation of liquid carbon dioxide in the cavity, while ensuring that the maximum input pressure of the liquid carbon dioxide flowing into the compression cylinder 6 can reach 20 MPa, thereby improving the speed and output of dry ice pelletization.

[0024] likeFigure 5 As shown in the preferred embodiment, the compression cylinder 6 is provided with a plurality of gas outlet holes 602, the buffer cylinder 7 is provided with a spiral buffer channel 703 in communication with the gas outlet holes 602, and the spiral buffer channel 703 is communicated to the gas outlet 701. The spiral buffer channel 703 can effectively buffer the pressure generated by the liquid carbon dioxide entering the compression cylinder 6, reduce the pressure on the copper filter, and make the compression cylinder 6 not only be able to well exhaust the carbon dioxide vapor formed by the evaporation of the liquid carbon dioxide in the cavity, but also be able to ensure that the maximum input pressure of the liquid carbon dioxide flowing into the compression cylinder 6 can reach 20 MPa, thereby improving the speed and yield of the dry ice granulation.

[0025] The preferred specific embodiments and examples of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-mentioned embodiments and examples, and various changes or equivalent replacements can be made within the knowledge possessed by those skilled in the art without departing from the concept of the present application, therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope of protection of the present application.

Claims

1. A novel vertical dry ice pelletizer, comprising a pelletizer body (1) and a pelletizer component (3) located inside the pelletizer body (1), wherein the pelletizer component (3) is connected to an ice outlet (2), and the pelletizer component (3) comprises a compression cylinder (6) with an upper pressing plate (4) and a lower pressing plate (5) provided at upper and lower ends respectively, wherein the upper pressing plate (4) is connected to an ice outlet plate component (8), and is characterized in that: The inner cavity of the compression cylinder (6) is provided with a piston rod component (9), and the outer wall of the piston rod component (9) is provided with a first seal (901) and a second seal (902). The piston rod component (9) is provided with a groove (903) at a position between the first seal (901) and the second seal (902), and a magnet (904) that does not contact the inner wall of the compression cylinder (6) is provided in the groove (903). The upper and lower parts of the outer wall of the compression cylinder (6) are respectively provided with a first limit switch sensor (10) and a second limit switch sensor (11) for monitoring the movement of the magnet (904), and the inner cavity of the compression cylinder (6) is connected to a buffer cylinder (7) provided with a gas outlet (701) located on the outer wall of the compression cylinder (6).

2. The novel vertical dry ice pelletizer according to claim 1 is characterized in that: The compression cylinder (6) is provided with a plurality of gas outlet holes (602), and the buffer cylinder (7) is provided with a buffer cavity (702) connected to the gas outlet holes (602), and the buffer cavity (702) is connected to the gas outlet (701).

3. The novel vertical dry ice pelletizer according to claim 1 is characterized in that: The compression cylinder (6) is provided with a plurality of gas outlet holes (602), and the buffer cylinder (7) is provided with a spiral buffer channel (703) connected to the gas outlet holes (602), and the spiral buffer channel (703) is connected to the gas outlet (701).

4. The novel vertical dry ice pelletizer according to claim 1 is characterized in that: The magnet (904) is fixed in the groove (903) by metal glue or screws.

5. The novel vertical dry ice pelletizer according to claim 1 is characterized in that: The buffer cylinder (7) and the compression cylinder (6) are integrally formed or welded together.

6. The novel vertical dry ice pelletizer according to claim 1 is characterized in that: The first limit switch sensor (10) and the second limit switch sensor (11) are photoelectric sensors.

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