Material leading-in device of preheater

Abstract

The utility model belongs to the technical field of chemical production, and particularly relates to a preheater material leading-in device which comprises a box body, and a melting chamber is formed in the box body. The side wall of the melting chamber is fixedly connected and communicated with a liquid collecting chamber; the side wall of the liquid collecting chamber is fixedly connected with a material output pipe; a condensate water flowing chamber is formed in the box body; a condensate water inlet pipe, a condensate water outlet pipe and a liquid discharge pipe are fixedly connected outside the box body; a material inlet pipe is arranged at the top of the box body; a crushing mechanism is arranged in the material inlet pipe; the device is used for solving the problems of low preheating efficiency and long preheating time caused by blockage of a crystallized material when the material is preheated in a preheater when the crystallized material or a part of the crystallized material is rectified.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, and particularly relates to a material introduction device for a preheater. Background Art

[0002] In chemical production, preheaters are applied in many processes. In the distillation process, preheaters are usually used to preheat distillation raw materials. Preheating can reduce the viscosity and viscoelasticity of the raw materials, making the raw materials flow more easily. At the same time, the preheated raw materials are also beneficial to the stable progress of the distillation process.

[0003] In the prior art, when distilling crystalline materials or partially crystalline materials, the crystalline materials will be blocked during preheating in the preheater, resulting in low preheating efficiency and increased preheating time. Therefore, the utility model provides a material introduction device for a preheater. Summary of the Utility Model

[0004] In order to make up for the deficiencies of the prior art and solve the problem that when distilling crystalline materials or partially crystalline materials, the crystalline materials will be blocked during preheating in the preheater, resulting in low preheating efficiency and increased preheating time.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows: A material introduction device for a preheater of the utility model includes a box body, and a melting chamber is arranged in the box body; a liquid collecting chamber is fixedly connected and communicated with the side wall of the melting chamber; a material output pipe is fixedly connected to the side wall of the liquid collecting chamber; a condensed water flow chamber is arranged in the box body, and the condensed water flow chamber is located outside the melting chamber; a condensed water inlet pipe, a condensed water outlet pipe and a drain pipe are fixedly connected to the outside of the box body, and the condensed water inlet pipe, the condensed water outlet pipe and the drain pipe are all communicated with the condensed water flow chamber; the condensed water inlet pipe and the condensed water outlet pipe are located on both sides of the top of the condensed water flow chamber; the drain pipe is located on one side of the bottom of the condensed water flow chamber; a material inlet pipe is arranged at the top of the box body; and a crushing mechanism is arranged in the material inlet pipe.

[0006] Preferably, the crushing mechanism includes a first rotating shaft and a second rotating shaft; the first rotating shaft and the second rotating shaft extend out of one side of the material inlet pipe and are rotatably connected to the side wall of the material inlet pipe; extrusion shafts are respectively fixedly connected to the first rotating shaft and the second rotating shaft, and the extrusion shafts are located in the material inlet pipe; a dust-proof chamber is fixedly connected between the box body and the side wall of the material inlet pipe; gears are respectively fixedly connected to the first rotating shaft and the second rotating shaft; and the gears are meshed with each other and are located in the dust-proof chamber.

[0007] Preferably, a rotating rod is rotatably connected to the inner side wall of the liquid collecting chamber, and the other end of the rotating rod penetrates through the melting chamber; a spiral blade is fixedly connected to the rotating rod; a first pulley is fixedly connected to the rotating rod; a second pulley is fixedly connected to the first rotating shaft; the first pulley and the second pulley are driven by a belt, and the first pulley and the second pulley are located in the dust-proof chamber; the rotating rod is driven by a motor, and the motor is located in the dust-proof chamber.

[0008] Preferably, a pair of scraping plates are fixedly connected inside the material inlet pipe; the scraping plates are located above the extrusion shaft and are attached to the surface of the extrusion shaft.

[0009] The beneficial effects of the present utility model are as follows:

[0010] 1. For the material introduction device of the preheater described in the present utility model, by utilizing the high-temperature condensed water obtained from the heat exchange and condensation of saturated steam in the preheater, the crystalline material or partially crystalline material is heated and melted, increasing the fluidity of the material, preventing the blockage of the crystalline material in the preheater and reducing the problem of preheating efficiency, while realizing the secondary utilization of the heat of the high-temperature condensed water.

[0011] 2. For the material introduction device of the preheater described in the present utility model, by providing a crushing mechanism to crush the crystalline material, the melting speed of the low-temperature easily fusible crystals is increased, and the blockage probability of the low-temperature non-fusible crystals in the heat exchanger is also reduced.

[0012] 3. For the material introduction device of the preheater described in the present utility model, by providing scraping plates to scrape the surface of the extrusion shaft, the adhesion of the material is prevented, which affects the crushing efficiency of the crushing mechanism. Description of the Drawings

[0013] The present utility model will be further described below with reference to the accompanying drawings.

[0014] Figure 1 is the three-dimensional view of the present utility model;

[0015] Figure 2 is the front sectional view of the present utility model;

[0016] Figure 3 is the side sectional view and partial structure diagram of the present utility model;

[0017] Figure 4 is the partial structure diagram of the transmission part of the present utility model;

[0018] In the figure: 1. Box body; 11. Condensate inlet pipe; 12. Condensate outlet pipe; 13. Drain pipe; 2. Melting chamber; 3. Condensate flow chamber; 4. Material inlet pipe; 41. Extrusion shaft; 42. Scraper; 43. First rotating shaft; 44. Second rotating shaft; 45. Gear; 46. Second pulley; 5. Dust-proof chamber; 6. Liquid collection chamber; 61. Material output pipe; 7. Motor; 71. Rotating rod; 72. First pulley; 73. Belt; 74. Helical blade. Detailed implementation mode

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation modes.

[0020] Embodiment 1

[0021] As Figures 1 to 4 shown, a material introduction device for a preheater according to an embodiment of the present utility model includes a box body 1, and a melting chamber 2 is provided in the box body 1; a liquid collection chamber 6 is fixedly connected and communicated with the side wall of the melting chamber 2; a material output pipe 61 is fixedly connected to the side wall of the liquid collection chamber 6; a condensate flow chamber 3 is provided in the box body 1, and the condensate flow chamber 3 is located outside the melting chamber 2; a condensate inlet pipe 11, a condensate outlet pipe 12 and a drain pipe 13 are fixedly connected to the outside of the box body 1, and the condensate inlet pipe 11, the condensate outlet pipe 12 and the drain pipe 13 are all communicated with the condensate flow chamber 3; the condensate inlet pipe 11 and the condensate outlet pipe 12 are located on both sides of the top of the condensate flow chamber 3; the drain pipe 13 is located on one side of the bottom of the condensate flow chamber 3; a material inlet pipe 4 is provided at the top of the box body 1; a crushing mechanism is provided in the material inlet pipe 4; during operation, high-temperature condensate enters the condensate flow chamber 3 through the condensate inlet pipe 11, the material enters through the material inlet pipe 4, the liquid material directly enters the melting chamber 2, the crystalline material is crushed by the crushing mechanism and then enters the melting chamber 2, the crushed material entering the melting chamber 2 is heated and melted by the high-temperature condensate, and the melted material is mixed with the liquid material and then enters the preheater through the material output pipe 61, and the high-temperature condensate after heat exchange is discharged through the condensate outlet pipe 12. After the work is completed, the condensate in the condensate flow chamber 3 is discharged through the drain pipe 13, and the preheater is prevented from being blocked by crushing and melting the crystalline material.

[0022] Furthermore, the high-temperature condensate is selected as the high-temperature condensate obtained by heat exchange and condensation of saturated steam in the preheater, and a control valve is installed on the material output pipe 61 to control the flow rate of the material output to the preheater.

[0023] Embodiment 2

[0024] As Figures 1 to 4As shown, on the basis of Embodiment 1, the crushing mechanism includes a first rotating shaft 43 and a second rotating shaft 44; the first rotating shaft 43 and the second rotating shaft 44 extend out of one side of the material inlet pipe 4 and are rotatably connected to the side wall of the material inlet pipe 4; extrusion shafts 41 are fixedly connected to the first rotating shaft 43 and the second rotating shaft 44 respectively, and the extrusion shafts 41 are located inside the material inlet pipe 4; a dust-proof chamber 5 is fixedly connected to the side wall of the box body 1 and the material inlet pipe 4; gears 45 are fixedly connected to the first rotating shaft 43 and the second rotating shaft 44 respectively; the gears 45 mesh with each other and are located inside the dust-proof chamber 5.

[0025] A rotating rod 71 is rotatably connected to the inner side wall of the liquid collection chamber 6, and the other end of the rotating rod 71 penetrates through the melting chamber 2; a spiral blade 74 is fixedly connected to the rotating rod 71; a first pulley 72 is fixedly connected to the rotating rod 71; a second pulley 46 is fixedly connected to the first rotating shaft 43; the first pulley 72 and the second pulley 46 are driven by a belt 73, and the first pulley 72 and the second pulley 46 are located inside the dust-proof chamber 5; the rotating rod 71 is driven by a motor 7, and the motor 7 is located inside the dust-proof chamber 5. During operation, the motor 7 drives the rotating rod 71 to rotate, the rotating rod 71 drives the first pulley 72 to rotate, the first pulley 72 drives the second pulley 46 to rotate through the belt 73, the second pulley 46 drives the first rotating shaft 43 to rotate, thereby driving the gear 45 to rotate. The first rotating shaft 43 and the second rotating shaft 44 are driven to rotate by the meshing gears 45, thereby driving the extrusion shaft 41 to rotate. The rotating extrusion shaft 41 crushes the incoming crystalline material. The crushed crystals are easier to melt, shortening the heating time. At the same time, the rotating rod 71 drives the spiral blade 74 to stir and mix the mixed material in the melting chamber 2, and the spiral blade 74 gathers some of the mixed material in the melting chamber 2 into the liquid collection chamber 6 by rotation.

[0026] Embodiment 3

[0027] As Figures 1 to 4 shown, on the basis of Embodiment 2, a pair of scraping plates 42 are fixedly connected inside the material inlet pipe 4; the scraping plates 42 are located above the extrusion shaft 41 and are in contact with the surface of the extrusion shaft 41. During operation, when the crystalline material is crushed by the extrusion shaft 41, some of the material is likely to adhere to the surface of the extrusion shaft 41. The scraping plates 42 scrape the surface of the extrusion shaft 41 to prevent the material from sticking and affecting the crushing efficiency of the extrusion shaft 41.

[0028] Working principle: The motor 7 drives the rotating rod 71 to rotate. The rotating rod 71 drives the first pulley 72 to rotate. The first pulley 72 drives the second pulley 46 to rotate through the belt 73. The second pulley 46 drives the first rotating shaft 43 to rotate, thereby driving the gear 45 to rotate. The meshing gears 45 drive the first rotating shaft 43 and the second rotating shaft 44 to rotate, thereby driving the extrusion shaft 41 to rotate. High-temperature condensed water enters the condensed water flow chamber 3 through the condensed water inlet pipe 11, and the material enters through the material inlet pipe 4. The rotating extrusion shaft 41 crushes the incoming crystalline material. The liquid material directly enters the melting chamber 2. The crystalline material is crushed by the crushing mechanism and then enters the melting chamber 2. The rotating rod 71 drives the spiral blade 74 to stir and mix the mixed material in the melting chamber 2. The crushed material entering the melting chamber 2 is heated and melted by the high-temperature condensed water. After the spiral blade 74 rotates to gather some of the mixed material in the melting chamber 2 into the liquid collection chamber 6, the mixed material enters the preheater through the material output pipe 61 for preheating. The high-temperature condensed water after heat exchange is discharged through the condensed water outlet pipe 12. After the work is completed, the condensed water in the condensed water flow chamber 3 is discharged through the drain pipe 13.

[0029] The above front, back, left, right, up, and down are all based on the Figure 1 description in the accompanying drawings of the specification. Taking the perspective of the observer as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A preheater material introduction device, characterized in that: The invention comprises a box body (1), wherein a melting chamber (2) is provided in the box body (1); the side wall of the melting chamber (2) is fixedly connected to and communicated with a liquid collecting chamber (6); the side wall of the liquid collecting chamber (6) is fixedly connected to a material output pipe (61); a condensate flow chamber (3) is provided in the box body (1), and the condensate flow chamber (3) is located outside the melting chamber (2); a condensate inlet pipe (11), a condensate outlet pipe (12) and a liquid discharge pipe (13) are fixedly connected to the outside of the box body (1), and the condensate inlet pipe (11), the condensate outlet pipe (12) and the liquid discharge pipe (13) are all communicated with the condensate flow chamber (3); the condensate inlet pipe (11) and the condensate outlet pipe (12) are located on both sides of the top of the condensate flow chamber (3); the liquid discharge pipe (13) is located on one side of the bottom of the condensate flow chamber (3); a material inlet pipe (4) is provided at the top of the box body (1); a crushing mechanism is provided in the material inlet pipe (4).

2. A preheater material introduction device according to claim 1, characterized in that: The pulverizing mechanism comprises a first rotating shaft (43) and a second rotating shaft (44); the first rotating shaft (43) and the second rotating shaft (44) extend out of one side of the material inlet pipe (4) and are rotatably connected to the side wall of the material inlet pipe (4); the first rotating shaft (43) and the second rotating shaft (44) are respectively fixedly connected to an extrusion shaft (41), and the extrusion shaft (41) is located in the material inlet pipe (4); the box body (1) and the side wall of the material inlet pipe (4) are fixedly connected to a dustproof chamber (5); the first rotating shaft (43) and the second rotating shaft (44) are respectively fixedly connected to gears (45); the gears (45) are meshed with each other and are located in the dustproof chamber (5).

3. A preheater material introduction device according to claim 2, characterized in that: The inner wall of the liquid collecting chamber (6) is rotatably connected to a rotating rod (71), and the other end of the rotating rod (71) passes through the melting chamber (2); a spiral blade (74) is fixedly connected to the rotating rod (71); a first belt pulley (72) is fixedly connected to the rotating rod (71); a second belt pulley (46) is fixedly connected to the first rotating shaft (43); the first belt pulley (72) and the second belt pulley (46) are driven by a belt (73), and the first belt pulley (72) and the second belt pulley (46) are located in the dustproof chamber (5); the rotating rod (71) is driven by a motor (7), and the motor (7) is located in the dustproof chamber (5).

4. A preheater material introduction device according to claim 3, characterized in that: A pair of scrapers (42) are fixedly connected inside the material inlet pipe (4); the scrapers (42) are located above the extrusion shaft (41) and are in contact with the surface of the extrusion shaft (41).

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