Device for optimizing accurate control of material level of steaming bin

Abstract

The utility model relates to a device for optimizing accurate control over the material level of a steaming bin. The problems that in the prior art, a water film is likely to be formed on a probe of a radar level gauge, the detection effect of the level gauge is affected, the hot steam exhaust efficiency is poor, the radar level gauge is in an overheat environment for a long time, and the equipment damage risk is increased are solved. The device comprises a steam bin, a steam inlet is formed in one side of the steam bin, a radar level gauge is arranged at the top of the inner side of the steam bin, an air inlet mechanism is connected to the upper end of the steam bin, the air inlet mechanism is connected with an adjustable air blowing assembly arranged in the circumferential direction of the radar level gauge, and a negative pressure air suction assembly is arranged at the upper end of the inner side of the upper end of the steam bin. The utility model has the advantages that the influence on the detection effect of the radar level gauge is avoided, the material level is conveniently and accurately controlled, the equipment is effectively prevented from being damaged, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and particularly relates to a device for optimizing the precise control of the material level in a steam chest. Background Art

[0002] In the papermaking process, steam heating is usually used to pre-steam the raw materials, expel the air in the cell cavities of the fiber raw materials, and thus balance the moisture of the raw materials. By precisely controlling the height of the material level, the reaction time for softening the fiber raw materials in the subsequent pulping production process is controlled, and at the same time, it serves as a production buffer bin. The material level is detected and controlled by using a radar level gauge installed on the top of the bin. After the existing radar level gauge is used for a period of time, dust particles will adhere to the inner wall of the horn and the surface of the waveguide assembly, which will reduce the effect of the waveguide assembly in transmitting and receiving electromagnetic waves and affect the measurement accuracy of the radar level gauge; in addition, water vapor accumulates on the top of the bin, making it easy for the probe of the radar level gauge to form a water film, affecting the detection effect of the level gauge, unable to accurately and timely control the material level and reasonable reaction time, and the exhaust pipe on the top of the bin is at atmospheric pressure for evacuation, and the efficiency of hot steam discharge is not obvious, resulting in the accumulation of hot steam on the top of the bin and failure to be discharged in time. The radar level gauge is in an overheated environment for a long time, increasing the risk of equipment damage.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term explorations and proposed various solutions. For example, a Chinese patent document discloses an automatic purging device for a millimeter-wave radar level gauge [CN202221785294.X], which includes a level gauge main body. A horn is movably sleeved outside the level gauge main body. A first air inlet ring is fixedly sleeved at the upper end outside the horn. A second air inlet ring is fixedly sleeved on the outer surface of the horn. An exhaust ring is fixedly sleeved at the lower end outside the horn. A fan is fixedly installed at one end of the exhaust ring. A filter cylinder is fixedly installed above the fan. A baffle is fixedly installed on the inner surface of the filter cylinder. A filter screen is fixedly embedded on the upper surface of the baffle. A spiral blade is movably installed inside the filter cylinder. Cleaning plates are symmetrically rotatably connected to the inner wall of the horn.

[0004] The above solution solves the problem that dust particles are likely to adhere to the surface of the radar level gauge in the existing technology and affect the measurement accuracy to a certain extent. However, this solution still has many deficiencies. For example, it is easy for the probe of the radar level gauge to form a water film, affecting the detection effect of the level gauge, unable to accurately and timely control the material level and reasonable reaction time, and the efficiency of hot steam discharge is poor, resulting in the accumulation of hot steam on the top of the bin. The radar level gauge is in an overheated environment for a long time, increasing the risk of equipment damage. Summary of the Invention

[0005] The purpose of the utility model is to provide a device for optimizing the precise control of the material level in a steam chest in view of the above problems.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A device for optimizing the precise control of the material level in a steam chest, including a steam chest, a steam inlet is provided at the bottom of the steam chest, and a radar level gauge is provided at the top inside the steam chest. An air inlet mechanism is connected to the upper end of the steam chest, the air inlet mechanism is connected to an adjustable blowing assembly arranged circumferentially around the radar level gauge, and a swinging flow guiding structure is provided on the inner circumference of the steam chest, and a negative pressure suction assembly is provided at the upper end inside the upper end of the steam chest.

[0007] In the above device for optimizing the precise control of the material level in a steam chest, the air inlet mechanism includes a compressed air inlet pipe, a flow regulating ball valve is provided on the compressed air inlet pipe, and one end of the compressed air inlet pipe is connected to an air compressor device.

[0008] In the above device for optimizing the precise control of the material level in a steam chest, the adjustable blowing assembly includes a guide pipe body arranged in a ring shape, the guide pipe body is connected to the compressed air inlet pipe through an air delivery pipe body, and an arc-shaped air outlet structure is provided on the inner circumference of the guide pipe body facing the radar level gauge.

[0009] In the above device for optimizing the precise control of the material level in a steam chest, the arc-shaped air outlet structure includes an assembly seat, a blowing seat is swingably arranged on the assembly seat, a blowing outlet is provided on one side of the blowing seat and the other side is connected to the guide pipe body through a blowing branch pipe.

[0010] In the above device for optimizing the precise control of the material level in a steam chest, a lifting driving cylinder is provided on the upper end surface of the steam chest, a linkage sleeve is arranged on the outer wall of the output end shaft of the lifting driving cylinder, and a plurality of adjusting sliding grooves are provided on the outer circumference of the linkage sleeve. A sliding block body is arranged in the adjusting sliding groove, and an inclined linkage rod is connected to the sliding block body.

[0011] In the above device for optimizing the precise control of the material level in a steam chest, one end of the linkage rod away from the sliding block body is connected to the blowing seat, and the blowing seat swings as the linkage rod slides, thereby adjusting the blowing direction of the blowing outlet.

[0012] In the above device for optimizing the precise control of the material level in a steam chest, the negative pressure suction assembly includes a negative pressure suction pipe, one end of the negative pressure suction pipe is connected to a negative pressure device and the other end is provided with a swinging suction hood.

[0013] In the above device for optimizing the precise control of the material level in a steam chest, a swinging connecting rod is connected to the swinging suction hood, a universal ball head is connected to the end of the swinging connecting rod and is driven by a swinging motor on both sides. An air suction channel communicating with the negative pressure suction pipe is provided on the inner circumference of the swinging connecting rod and the universal ball head.

[0014] In the above device for optimizing the precise control of the material level in a steam chest, an air inlet filter screen is provided at the inlet of the swinging suction hood.

[0015] Compared with the existing technologies, the advantages of the present utility model are as follows: By using the air intake mechanism and the adjustable blowing assembly, the water film on the probe of the radar level gauge can be dried in time, which avoids affecting the detection effect of the radar level gauge, facilitates the precise control of the material level, reasonably predicts the reaction time of steam distillation, and optimizes the pulping process; Cooperating with the negative pressure suction assembly for active suction, it avoids the radar level gauge from being in a high-temperature working environment for a long time, effectively prevents damage, and reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present utility model;

[0017] Figure 2 is the schematic diagram of the arc-shaped air outlet structure of the present utility model;

[0018] Figure 3 is the driving schematic diagram of the descending driving cylinder of the present utility model;

[0019] Figure 4 is the schematic diagram of the swing-type suction hood structure of the present utility model;

[0020] Figure 5 is the schematic diagram of the swing link structure of the present utility model;

[0021] In the figure: steam distillation chamber 1, steam inlet 11, radar level gauge 12, air intake mechanism 2, compressed air inlet pipe 21, flow regulating ball valve 22, adjustable blowing assembly 3, guide pipe body 31, arc-shaped air outlet structure 32, mounting seat 321, blowing seat 322, blowing branch pipe 323, lifting driving cylinder 33, linkage sleeve 34, adjusting chute 35, sliding block 36, linkage rod 37, negative pressure suction assembly 4, negative pressure suction pipe 41, negative pressure equipment 42, swing-type suction hood 43, swing link 44, suction channel 45, intake filter screen 46. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] As Figures 1-5 shown, a device for optimizing the precise control of the material level in a steam distillation chamber includes a steam distillation chamber 1. The bottom of the steam distillation chamber 1 is provided with a steam inlet 11, and the inner top of the steam distillation chamber 1 is provided with a radar level gauge 12. The upper end of the steam distillation chamber 1 is connected with an air intake mechanism 2. The air intake mechanism 2 is connected with an adjustable blowing assembly 3 arranged circumferentially around the radar level gauge 12. The upper inner end of the steam distillation chamber 1 is provided with a negative pressure suction assembly 4.

[0024] Among them, the air intake mechanism 2 includes a compressed air inlet pipe 21. A flow regulating ball valve 22 is arranged on the compressed air inlet pipe 21, and one end of the compressed air inlet pipe 21 is connected to an air compressor device.

[0025] According to the blowing requirement, the main control module is used to adjust the intake air volume of compressed air of the flow regulating ball valve 22.

[0026] Obviously, the adjustable blowing assembly 3 includes a guide air pipe body 31 arranged in a ring shape. The guide air pipe body 31 is connected to the compressed air inlet pipe 21 through an air delivery pipe body, and an arc-shaped air outlet structure 32 facing the radar level gauge 12 is arranged on the inner side of the circumferential direction of the guide air pipe body 31.

[0027] Furthermore, the arc-shaped air outlet structure 32 includes an assembly seat 321. A blowing seat 322 is slidably and swingably arranged on the assembly seat 321. One side of the blowing seat 322 is provided with a blowing outlet, and the other side is connected to the guide air pipe body 31 through a blowing branch pipe 323.

[0028] The blowing seat 322 can perform telescopic movement in the assembly seat 321 to adjust the blowing distance, and can perform swing adjustment of the blowing angle.

[0029] Still further, a lifting drive cylinder 33 is arranged on the upper end surface of the steaming bin 1. A linkage sleeve 34 is arranged on the outer wall of the output end shaft of the lifting drive cylinder 33. A plurality of adjustment sliding grooves 35 are arranged on the outer wall of the circumferential direction of the linkage sleeve 34. A sliding block body 36 is arranged in the adjustment sliding grooves 35, and an inclined linkage rod 37 is connected to the sliding block body 36.

[0030] It is supplied with air through the compressed air inlet pipe 21, introduced into the guide air pipe body 31 through the air delivery pipe body, then blown to the radar level gauge 12 through the blowing seat 322, and the lifting drive cylinder 33 drives the linkage sleeve 34 to lift, thereby driving the linkage rod 37 to be linked, so as to realize the sliding and blowing angle adjustment of the blowing seat 322.

[0031] Specifically, one end of the linkage rod 37 away from the sliding block body 36 is connected to the blowing seat 322, and the blowing seat 322 swings as the linkage rod 37 slides, so as to adjust the blowing direction of the blowing outlet.

[0032] In detail, the negative pressure suction assembly 4 includes a negative pressure suction pipe 41. One end of the negative pressure suction pipe 41 is connected to a negative pressure device 42, and the other end is provided with a swingable suction hood 43.

[0033] Preferably, a swing link 44 is connected to the swingable suction hood 43. The end of the swing link 44 is connected to a universal ball head and is driven by swing motors on both sides. Suction channels 45 communicating with the negative pressure suction pipe 41 are arranged on the inner side of the circumferential direction of the swing link 44 and on the universal ball head.

[0034] The swing link 44 is driven by the swing motors to swing, so as to adjust the suction direction of the swingable suction hood 43.

[0035] In addition, an air inlet filter screen 46 is provided at the inlet of the swing suction hood 43. The air inlet filter screen 46 is used to filter steam impurities.

[0036] In summary, the principle of this embodiment is as follows: during use, compressed air is supplied through the compressed air inlet pipe 21 and blown towards the radar level gauge 12 through the adjustable blowing assembly 3 to achieve water film removal. Among them, the lifting drive cylinder 33 drives the linkage sleeve 34 to lift and lower, so as to achieve the sliding adjustment of the blowing distance and blowing angle of the blowing seat 322, avoiding the rapid formation of water film on the radar level gauge 12. At the same time, the steam is sucked through the negative pressure suction assembly 4 to improve the steam discharge efficiency and reduce the working temperature of the radar level gauge 12.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although terms such as steam chamber 1, steam inlet 11, radar level gauge 12, air inlet mechanism 2, compressed air inlet pipe 21, flow regulating ball valve 22, adjustable blowing assembly 3, guide pipe body 31, arc-shaped air outlet structure 32, assembly seat 321, blowing seat 322, blowing branch pipe 323, lifting drive cylinder 33, linkage sleeve 34, adjustment chute 35, sliding block 36, linkage rod 37, negative pressure suction assembly 4, negative pressure suction pipe 41, negative pressure device 42, swing suction hood 43, swing connecting rod 44, suction channel 45, air inlet filter screen 46, etc. are used more frequently in this article, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A device for optimizing the precise control of the material level in a steam chest, comprising a steam chest (1), wherein a steam inlet (11) is provided at the bottom of the steam chest (1), and a radar level gauge (12) is provided at the inner top of the steam chest (1), characterized in that, The upper end of the steam chamber (1) is connected to an air intake mechanism (2), and the air intake mechanism (2) is connected to an adjustable air blowing assembly (3) arranged circumferentially around the radar level gauge (12). The inner upper end of the upper end of the steam chamber (1) is provided with a negative pressure suction assembly (4).

2. The device for optimizing the precise control of the material level in the steam chest according to claim 1, characterized in that, The air intake mechanism (2) includes a compressed air inlet pipe (21), a flow regulating ball valve (22) is provided on the compressed air inlet pipe (21), and one end of the compressed air inlet pipe (21) is connected to an air compressor device.

3. The device for optimizing the precise control of the material level in the steam chest according to claim 2, characterized in that, The adjustable air blowing assembly (3) includes a circular guide pipe body (31). The guide pipe body (31) is connected to the compressed air inlet pipe (21) through an air delivery pipe body, and an arc-shaped air outlet structure (32) facing the radar level gauge (12) is provided on the inner circumference of the guide pipe body (31).

4. An apparatus for optimizing the precise control of the material level in a steam chest, as claimed in claim 3, characterized in that, The arc-shaped air outlet structure (32) includes an assembly seat (321). A blowing seat (322) is slidably and swingably arranged on the assembly seat (321). One side of the blowing seat (322) is provided with a blowing outlet and the other side is connected to the guide pipe body (31) through a blowing branch pipe (323).

5. An apparatus for optimizing the precise control of the material level in a steam chest, as claimed in claim 4, wherein, A lifting drive cylinder (33) is provided on the upper end surface of the steam chamber (1). A linkage sleeve (34) is arranged on the outer wall of the output end shaft of the lifting drive cylinder (33). A plurality of adjustment chutes (35) are provided on the outer circumference of the linkage sleeve (34). A sliding block body (36) is arranged in the adjustment chutes (35), and an inclined linkage rod (37) is connected to the sliding block body (36).

6. An apparatus for optimizing the precise control of the material level in a steam chest, as claimed in claim 5, wherein, One end of the linkage rod (37) away from the sliding block body (36) is connected to the blowing seat (322), and the blowing seat (322) swings as the linkage rod (37) slides, thereby adjusting the blowing direction of the blowing outlet.

7. An apparatus for optimizing the precise control of the material level in a steam chest, as claimed in claim 1, wherein, The negative pressure suction assembly (4) includes a negative pressure suction pipe (41). One end of the negative pressure suction pipe (41) is connected to a negative pressure device (42) and the other end is provided with a swing-type suction hood (43).

8. An apparatus for optimizing the precise control of the material level in a steam chest, according to claim 7, characterized in that, A swing link (44) is connected to the swing-type suction hood (43). The end of the swing link (44) is connected to a universal ball head and is driven by a swing motor on both sides. An air suction channel (45) communicating with the negative pressure suction pipe (41) is provided on the inner circumference of the swing link (44) and the universal ball head.

9. The device for optimizing the precise control of the material level in the steam chest according to claim 8, wherein An air intake filter screen (46) is provided at the inlet of the swing-type suction hood (43).

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