Outdoor static pressure box for discharging threshing and redrying steam

Abstract

The invention discloses a threshing and redrying steam exhaust outdoor plenum chamber which is characterized in that a chamber body of the plenum chamber (1) is cubic, and a plurality of pipeline steam exhaust ports are formed in the chamber body; and the upper part of the box body is provided with a main steam exhaust port (5). According to the threshing and redrying steam discharging outdoor static pressure box (1), the problems that in the existing threshing and redrying steam discharging process, pressure is unbalanced, odor is large, noise is high, sewage and waste residues are discharged disorderly and the like are solved, and efficient and environment-friendly discharging of threshing and redrying steam is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco processing, and in particular relates to an outdoor static pressure box for exhausting steam from leaf threshing and re-drying. Background Art

[0002] During the leaf threshing and re-drying process, a large amount of steam will be generated; and the noise generated by the high-speed injection of steam is also relatively large, the steam has an unpleasant smell, and the steam also carries solid impurities such as tobacco powder, which do not meet the environmental emission standards. Therefore, the steam generated by different sections of the same factory or the same workshop is concentrated together, and then discharged after unified treatment. The applicant designed a box (outdoor static pressure box) to allow the steam generated by different sections of the same factory or the same workshop to be discharged into the box respectively, and then concentrated together for unified treatment and discharged, solving the problems of high noise and failure to meet environmental emission standards. However, there are the following problems: the steam pressures generated by different sections are different, and the steam discharge ports are all set in the same box. The steam discharged from the high-pressure steam discharge port makes the surrounding pressure higher than the steam discharge pressure of the nearby steam discharge ports, which not only makes the steam from the nearby steam discharge ports unable to be discharged, but even the high-pressure steam flows back into the low-pressure steam discharge port, affecting the leaf threshing and re-drying section, and thus affecting the entire leaf threshing and re-drying production.

[0003] The present invention has been proposed to solve the above-mentioned problems. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an outdoor static pressure box for steam exhaust during leaf beating and re-drying, so as to solve the problems of pressure imbalance, loud noise, and disorderly discharge of moisture and powder in the existing steam exhaust process of leaf beating and re-drying, and realize efficient and environmentally friendly steam exhaust.

[0005] The technical solutions of the present invention are as follows:

[0006] The invention relates to an outdoor static pressure box for exhausting steam from leaf threshing and re-drying. The static pressure box 1 has a cubical body with a plurality of pipe steam exhaust ports inside the box; and a main steam exhaust port 5 is provided at the upper part of the box.

[0007] Preferably, several pipeline steam outlets are arranged from left to right in order of decreasing pressure (or can be arranged in order of increasing pressure), namely the first steam outlet 101, the second steam outlet 102,...; a partition plate 2 is arranged above the steam outlets 101, 102,..., and the partition plate 2 is arranged so that the partition plate 2 is inclined in the direction of getting closer to the steam outlets 101, 102,... from left to right, that is, the partition plate 2 is arranged so that the lower wall of the partition plate 2 is inclined in the direction of getting closer to the steam outlets 101, 102,..., 110,... in decreasing pressure; the partition plate 2 divides the interior of the static pressure box 1 into an upper high-pressure area 3 and a lower low-pressure area 4.

[0008] Preferably, the angle between the wall surface of the partition plate 2 and the horizontal plane is 5-30°.

[0009] Preferably, a low-pressure steam condenser 41 is provided on the lower wall of the partition plate 2, and a high-pressure steam condenser 31 is provided on the top inner wall of the static pressure box 1 near the left side;

[0010] Preferably, drain outlets are provided on the left and right sides of the bottom of the static pressure box 1 , namely a high-pressure area drain outlet 32 ​​and a low-pressure area drain outlet 42 .

[0011] Preferably, there are ten steam exhaust outlets, namely the first steam exhaust outlet 101, the second steam exhaust outlet 102, ..., the tenth steam exhaust outlet 110; among them, the steam discharged from the first steam exhaust outlet 101 has the highest pressure, and the steam discharged from the tenth steam exhaust outlet 110 has the lowest pressure; a one-way exhaust valve 6 is installed on each of the second steam exhaust outlet 102 to the tenth steam exhaust outlet 110.

[0012] Preferably, the one-way exhaust valve 6 is fixed to the nine steam exhaust ports 102 via a hinge 61 at its upper end; the mouth surfaces of the nine steam exhaust ports 102 are inclined surfaces, with an angle of 5-45° to the vertical direction; the mouth surface of each steam exhaust port 102 is adapted to the one-way exhaust valve 6 configured therewith.

[0013] Preferably, the inner side surface of each one-way exhaust valve 6 is made of a soft and flexible material, such as high-temperature resistant rubber.

[0014] Preferably, a purification and deodorization device is provided on the main steam outlet 5 .

[0015] Preferably, filtering and purification devices are respectively provided at the high-pressure area drain outlet 32 ​​and the low-pressure area drain outlet 42 .

[0016] Beneficial effects of the present invention:

[0017] 1. The outdoor static pressure box for exhausting steam from leaf threshing and re-drying of the present invention solves the problems of pressure imbalance, strong odor, strong noise, and disorderly discharge of sewage and waste residue (tobacco leaf powder) in the existing process of exhausting steam from leaf threshing and re-drying, and realizes efficient and environmentally friendly exhaust of steam from leaf threshing and re-drying.

[0018] 2. The present invention provides an outdoor static pressure box for exhausting steam from leaf beating and re-roasting, and a partition plate 2 inclined at an angle of 5-30° to the horizontal plane is provided in the static pressure box. The higher the steam pressure discharged from the steam outlet, the farther it is from the partition plate, and the lower the steam pressure discharged from the steam outlet, the closer it is to the partition plate. This arrangement allows the steam discharged from the higher steam outlet to first enter the high-pressure area 3, and to relieve part of the pressure when it hits the inner wall of the partition plate, and the remaining steam moves upward along the inner wall of the partition plate and enters the low-pressure area 4 on the upper part of the partition plate. During the upward movement of the steam along the partition plate 2, it is cooled by the low-pressure steam condenser 41, and then further cooled by the high-pressure steam condenser 31. A small amount of steam is discharged through the steam main outlet 5 after purification and deodorization, and most of the steam enters the low-pressure area 4, and continues to be cooled by the low-pressure steam condenser 41 and the high-pressure steam condenser 31, and finally reaches a relatively stable pressure balance. After comprehensive treatment in the static pressure box, the relative pressure of the steam when it is finally discharged is only slightly different from the ambient pressure, which greatly reduces the noise generated by high-speed steam injection. The high-pressure zone 3 or the low-pressure zone 4 is provided with a high-pressure zone drain outlet 32 ​​and a low-pressure zone drain outlet 42. Both drain outlets are provided with filtering and purification devices. The water after filtration and purification can meet the discharge standards for discharge, and the solid waste residue (tobacco leaf powder) can be recycled and reused after being processed to meet the standards.

[0019] 3. The steam outlets of the outdoor static pressure box for threshing and re-roasting steam are arranged in descending or ascending order of pressure. Except for the highest steam outlet which may not be equipped with a one-way exhaust valve, all other steam outlets are equipped with a one-way exhaust valve. When the external pressure (the pressure in the static pressure box) is greater than the pressure of the steam outlet, the one-way exhaust valve closes and the high-pressure steam will not enter the low-pressure steam outlet. Figure 3 When the external pressure (pressure in the static pressure box) is less than the pressure of the steam outlet, the one-way exhaust valve opens and the steam outlet can discharge steam to the outside, as shown in FIG. Figure 4 As shown. The setting of the one-way exhaust valve solves the problem of high-pressure steam backflowing into the low-pressure steam exhaust port without affecting the discharge of the low-pressure steam exhaust port. The one-way exhaust valve is set at an angle of 5-45° between the valve face and its vertical direction. The purpose of this setting is to rely on the one-way exhaust valve's own weight to close the steam exhaust port when the pressure on both sides of the one-way exhaust valve is balanced, preventing the steam in the static pressure box from backflowing into the steam exhaust port. At the same time, it ensures that when the steam pressure in the static pressure box is the same as the external atmospheric pressure, the steam pressure in the steam exhaust port is greater than the external atmospheric pressure and can be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the outdoor static pressure box for exhausting steam from leaf threshing and re-drying according to the present invention.

[0021] Figure 2 Schematic diagram of the one-way exhaust valve of the present invention.

[0022] Figure 3 This is a schematic diagram of the one-way exhaust valve of the present invention in the closed state.

[0023] Figure 4 This is a schematic diagram of the one-way exhaust valve of the present invention in the open state. DETAILED DESCRIPTION

[0024] It should be noted that the following examples are only used to illustrate and explain the present invention in detail, and the scope of application of the present invention is not limited by the conditions in the examples.

[0025] like Figure 1 As shown, the present invention provides an outdoor static pressure box for exhausting steam from leaf threshing and re-roasting. The static pressure box 1 has a cubic shape and is provided with a plurality of pipe steam exhaust ports inside the box; and a main steam exhaust port 5 is provided at the upper portion of the box.

[0026] Among them, several pipeline steam outlets are arranged from left to right in the order of decreasing pressure (or can be arranged in the order of increasing pressure), namely the first steam outlet 101, the second steam outlet 102,...; a partition plate 2 is arranged above the steam outlets 101, 102,..., and the partition plate 2 is arranged so that the partition plate 2 is inclined in the direction of getting closer to the steam outlets 101, 102,... from left to right, that is, the partition plate 2 is arranged so that the lower wall of the partition plate 2 is inclined in the direction of getting closer to the steam outlets 101, 102,..., 110,... in the direction of decreasing pressure; the partition plate 2 divides the interior of the static pressure box 1 into an upper high-pressure area 3 and a lower low-pressure area 4.

[0027] The angle between the wall surface of the partition plate 2 and the horizontal plane is 5-30°.

[0028] A low-pressure steam condenser 41 is provided on the lower wall of the partition plate 2, and a high-pressure steam condenser 31 is provided on the top inner wall of the static pressure box 1 near the left side; the steam condenser is water-cooled.

[0029] Wherein, drainage outlets are provided on the left and right sides of the bottom of the static pressure box 1 , namely the high-pressure area drainage outlet 32 ​​and the low-pressure area drainage outlet 42 .

[0030] In the solution of this embodiment, there are ten steam outlets, such as Figure 1 As shown, there are the first steam exhaust port 101, the second steam exhaust port 102, ..., the tenth steam exhaust port 110; among them, the steam discharged from the first steam exhaust port 101 has the highest pressure, and the steam discharged from the tenth steam exhaust port 110 has the lowest pressure; a one-way exhaust valve 6 is installed on each of the second steam exhaust port 102 to the tenth steam exhaust port 110.

[0031] Among them, the one-way exhaust valve 6 is fixed to the nine steam exhaust ports 102 through the hinge 61 at its upper end; the mouth surface of the nine steam exhaust ports 102 is an inclined surface, and the angle with the vertical direction is 5-45°; the mouth surface of each steam exhaust port 102 is adapted to the one-way exhaust valve 6 configured therewith.

[0032] The inner side surface of each one-way exhaust valve 6 is made of a soft and flexible material, such as high-temperature resistant rubber.

[0033] Among them, a purification and deodorization device is provided on the main steam exhaust port 5.

[0034] Wherein, filtering and purification devices are respectively provided at the high-pressure area drain outlet 32 ​​and the low-pressure area drain outlet 42 .

[0035] In the scheme of this embodiment, a partition plate 2 is arranged in the static pressure box with an angle of 15° to the horizontal plane. The higher the steam pressure discharged from the steam outlet, the farther it is from the partition plate, and the lower the steam pressure discharged from the steam outlet, the closer it is to the partition plate; this arrangement allows the steam discharged from the higher steam outlet to first enter the high-pressure area 3, and when it hits the inner wall of the partition plate, part of the pressure can be relieved, and the remaining steam moves upward along the inner wall of the partition plate into the low-pressure area 4 on the upper part of the partition plate; in the process of the steam moving upward along the partition plate 2, it is cooled by the low-pressure steam condenser 41, and then further cooled by the high-pressure steam condenser 31. A small amount of steam is discharged after purification and deodorization through the steam main outlet 5, and most of the steam enters the low-pressure area 4, and continues to be cooled by the low-pressure steam condenser 41 and the high-pressure steam condenser 31, and finally reaches a relatively stable pressure balance; after comprehensive treatment in the static pressure box, the relative pressure of the steam when it is finally discharged is only slightly different from the ambient pressure, which greatly reduces the noise generated by high-speed steam injection. The high-pressure zone 3 or the low-pressure zone 4 is provided with a high-pressure zone drain outlet 32 ​​and a low-pressure zone drain outlet 42. Both drain outlets are provided with filtering and purification devices. The water after filtration and purification can meet the discharge standards for discharge, and the solid waste residue (tobacco leaf powder) can be recycled and reused after being processed to meet the standards.

[0036] In the solution of this embodiment, Figure 1 As shown, the steam exhaust ports are arranged from left to right in descending order of pressure; except for the highest steam exhaust port which is not equipped with a one-way exhaust valve, all other steam exhaust ports are equipped with a one-way exhaust valve, such as Figure 2 As shown, Figure 3 and Figure 4 When the external pressure (pressure in the static pressure box) is greater than the pressure of the steam outlet, the one-way exhaust valve is closed, and the high-pressure steam will not enter the low-pressure steam outlet (the inner side of the one-way exhaust valve 6 is made of high-temperature resistant rubber with good sealing effect). Figure 3 When the external pressure (pressure in the static pressure box) is less than the pressure of the steam outlet, the one-way exhaust valve opens and the steam outlet can discharge steam to the outside, as shown in FIG. Figure 4 As shown. The setting of the one-way exhaust valve solves the problem of high-pressure steam backflowing into the low-pressure steam exhaust port, and does not affect the discharge of the low-pressure steam exhaust port. In the solution of this embodiment, the one-way exhaust valve is set at an angle of 15° between the valve face and its vertical direction. The purpose of this setting is to rely on the one-way exhaust valve's own weight to close the steam exhaust port when the pressure on both sides of the one-way exhaust valve is balanced, preventing the steam in the static pressure box from backflowing into the steam exhaust port; at the same time, it ensures that when the steam in the static pressure box is the same as the external atmospheric pressure, the steam pressure in the steam exhaust port is greater than the external atmospheric pressure and can be discharged.

[0037] The above description is only used to introduce the specific embodiments of the present invention in detail, but the technical solutions proposed by the present invention are not limited to the above methods. Without departing from the basic principles of the present technology, equivalent modifications and variations made by those skilled in the art to the technology proposed by the present invention should be included in the scope of the claims of the present invention.

Claims

1. A static pressure box for exhausting steam from threshing and re-roasting leaves, characterized in that: The static pressure box (1) has a cubical box body with a plurality of pipe steam outlets in the box body and a main steam outlet (5) at the top of the box body.

2. The static pressure box according to claim 1, characterized in that A plurality of pipeline steam outlets are arranged from left to right in the order of decreasing pressure, namely a first steam outlet (101), a second steam outlet (102), ...; a partition plate (2) is arranged above the steam outlets (101, 102, ...), and the partition plate (2) is arranged so that the lower wall surface of the partition plate (2) is inclined in a direction closer to the steam outlets (101, 102, ..., 110, ...) in decreasing pressure; the partition plate (2) divides the interior of the static pressure box (1) into an upper high-pressure area (3) and a lower low-pressure area (4).

3. The static pressure box according to claim 2, characterized in that The angle between the wall surface of the partition plate (2) and the horizontal plane is 5-30°.

4. The static pressure box according to claim 2, characterized in that A low-pressure steam condenser (41) is provided on the lower wall of the partition plate (2), and a high-pressure steam condenser (31) is provided on the inner wall of the top surface of the static pressure box (1) near the left side.

5. The static pressure box according to claim 2, characterized in that Drainage outlets are provided on the left and right sides of the bottom of the static pressure box (1), namely a high-pressure area drainage outlet (32) and a low-pressure area drainage outlet (42).

6. The static pressure box according to claim 2, characterized in that There are ten steam exhaust ports, namely a first steam exhaust port (101), a second steam exhaust port (102), ..., and a tenth steam exhaust port (110); wherein the steam discharged from the first steam exhaust port (101) has the highest pressure, and the steam discharged from the tenth steam exhaust port (110) has the lowest pressure; and a one-way exhaust valve (6) is respectively installed on the second steam exhaust port (102) to the tenth steam exhaust port (110).

7. The static pressure box according to claim 6, characterized in that The one-way exhaust valve (6) is fixed to the nine steam exhaust ports (102) via a hinge (61) at its upper end; the opening surfaces of the nine steam exhaust ports (102) are inclined surfaces, with an angle of 5-45° with the vertical direction; the opening surface of each steam exhaust port (102) is adapted to the one-way exhaust valve (6) configured therewith.

8. The static pressure box according to claim 6, characterized in that The inner side surface of each one-way exhaust valve (6) is made of a soft and gentle material.

9. The static pressure box according to claim 1, characterized in that A purification and deodorization device is provided on the steam main exhaust port (5).

10. The static pressure box according to claim 5, characterized in that A filtering and purification device is provided at the high-pressure area drain outlet (32) and the low-pressure area drain outlet (42), respectively.

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