Pulse type steam stem moistening machine

Abstract

The utility model relates to the technical field of tobacco processing, in particular to a pulse type steam stem moistening machine which comprises a feeding mechanism, a steam moistening mechanism and a material distributing mechanism, and the steam moistening mechanism at least comprises a first steam moistening bin and a second steam moistening bin. Each of the first steaming and moistening bin and the second steaming and moistening bin comprises a pressure-bearing barrel and a conveyor, the pressure-bearing barrels are used for accommodating materials and steam so as to pressurize and humidify the materials through the steam, and the conveyor is mounted in the pressure-bearing barrels; the material distributing mechanism is positioned between the feeding mechanism and the steaming and moistening mechanism and is used for communicating the feeding bin with the first steaming and moistening bin or the second steaming and moistening bin; the first steaming and moistening bin and the second steaming and moistening bin are used for alternately moistening stems, so that the steaming and moistening mechanism always has the stem moistening action, alternate pulse type stem moistening of the first steaming and moistening bin and the second steaming and moistening bin is achieved, uninterrupted continuous stem moistening work of materials is indirectly achieved, the feeding waiting time and the discharging waiting time are saved, and the production efficiency is improved. And the stem moistening efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco processing technical field especially relates to a pulse type steam stem moistening machine. BACKGROUND

[0002] The patent with the publication number CN207075534U discloses a kind of equipment of tobacco stem steaming and washing, including steaming stem device and washing stem device, the steaming stem device is a plate conveyor inclined downward along material moving direction, including feed inlet, discharge outlet, shell and hollow rotating shaft being set in shell, hollow rotating shaft is provided with several steam through holes, several scrapers are evenly arranged along the circumference of hollow rotating shaft, tobacco stem enters shell from feed inlet and is contacted with tobacco stem heat exchange, and always overturns under the agitation of scraper, realizes the movement to discharge outlet and is discharged from discharge outlet, i.e. UTILITARY MODEL CONTENTS

[0003] The utility model solves the technical problems that in the prior art, only one steaming stem device is used when steaming stem, a certain time is consumed for each feeding and discharging, and the steaming stem efficiency is low, and provides a pulse type steam stem moistening machine.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a pulse type steam stem moistening machine, comprising:

[0005] Feeding mechanism, including feed bin;

[0006] Steam moistening mechanism, at least including first steam moistening bin and second steam moistening bin, the first steam moistening bin and the second steam moistening bin all include pressure-bearing cylinder for accommodating material and steam to pressurize and humidify material by steam and conveyor installed in the pressure-bearing cylinder;

[0007] And distributing mechanism, it is located between feeding mechanism and steam moistening mechanism and is used to communicate feed bin with first steam moistening bin or second steam moistening bin.

[0008] Further, the conveyor is a spiral conveyor.

[0009] Further, the first steam moistening bin and the second steam moistening bin also include grate cylinder between spiral conveyor and pressure-bearing cylinder to carry out solid-liquid separation.

[0010] Further, the pressure-bearing cylinder is formed with pressure-bearing cavity inside and has feed inlet, discharge outlet, steam inlet and pressure relief port in communication with the pressure-bearing cavity, the feed inlet is installed with feed valve, and the discharge outlet is installed with discharge valve.

[0011] Furthermore, the material distribution mechanism includes a material distribution bin connected to the feeding bin, a first material distribution port connecting the material distribution bin to the feeding port of the first steaming bin, a second material distribution port connecting the material distribution bin to the feeding port of the second steaming bin, a flap for blocking the first material distribution port or the second material distribution port, and a drive component for driving the flap to flip.

[0012] Furthermore, the inner peripheral wall of the pressure-bearing cylinder or the outer peripheral wall of the grate cylinder has protruding support protrusions for supporting the grate cylinder so that it is suspended inside the pressure-bearing cylinder.

[0013] Furthermore, the stem lubricator also includes a silencer conveyor connected to the discharge port of the pressure cylinder, a discharge valve installed at the discharge port of the silencer conveyor, a discharge dehumidification hood installed at the steam outlet of the silencer conveyor, and a feed dehumidification hood installed at the steam outlet of the feeding mechanism.

[0014] Furthermore, the pressure-bearing cylinder includes a cylinder body, blind end caps and an outlet shaft end cap respectively fixed at both ends of the cylinder body;

[0015] The main shaft of the screw conveyor is mounted on the blind end cover and the output shaft end cover at both ends, and a supporting sealing structure is installed between the main shaft and the blind end cover and the output shaft end cover. The main shaft extends out of the output shaft end cover and is equipped with a transmission sprocket.

[0016] Furthermore, both the blind end cap and the output shaft end cap protrude towards the grate cylinder to form a supporting step for supporting the end of the grate cylinder.

[0017] Furthermore, the conveyor is a mesh belt conveyor.

[0018] The beneficial effects of this utility model are as follows: This utility model utilizes the alternating moistening of the first and second moistening chambers to ensure that the moistening mechanism always has a moistening action, realizing the alternating pulse moistening of the first and second moistening chambers, which indirectly enables the material to undergo uninterrupted continuous moistening, thereby saving the waiting time for feeding and discharging, and improving the moistening efficiency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is the front view of this utility model;

[0021] Figure 2 This is the left view of this utility model;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4 This is a schematic diagram of the evaporation chamber;

[0024] Figure 5 This is a schematic diagram of the material distribution mechanism;

[0025] In the picture:

[0026] 1. Feeding mechanism; 101. Feeding hopper; 102. Material inlet;

[0027] 2. Evaporation mechanism; 2a. First evaporation chamber; 2b. Second evaporation chamber; 201. Pressure cylinder; 2011. Cylinder body; 2012. Blind end cap; 2013. Output shaft end cap; 2014. Supporting step; 202. Conveyor; 203. Grate; 204. Feed inlet; 205. Discharge outlet; 206. Steam inlet; 207. Pressure relief port; 208. Support protrusion; 209. Support sealing structure; 210. Drive sprocket; 211. Drain outlet;

[0028] 3. Material distribution mechanism; 301. Material distribution bin; 302. First material distribution port; 303. Second material distribution port; 304. Flip plate; 305. Drive component;

[0029] 4. Feed valve;

[0030] 5. Discharge valve;

[0031] 6. Silencing conveyor; 601. Cleaning water inlet; 602. Drain outlet;

[0032] 7. Discharge valve;

[0033] 8. Discharge vent cover; 801. Discharge vent outlet;

[0034] 9. Feed vent cover; 901. Feed vent. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components relevant to the present invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0036] like Figures 1-3 As shown, a pulse-type steam stem-wetting machine includes:

[0037] The feeding mechanism 1 includes a feeding bin 101 with a material inlet 102;

[0038] The humidification mechanism 2 includes at least a first humidification chamber 2a and a second humidification chamber 2b (hereinafter referred to as "humidification chambers"). The first humidification chamber 2a and the second humidification chamber 2b have identical structures and each includes a pressure vessel 201 for containing materials and steam to pressurize and humidify the materials by steam, and a conveyor 202 installed in the pressure vessel 201. The pressure vessel 201 is a pressure vessel capable of withstanding a certain pressure. The materials can be, but are not limited to, tobacco stems, tea leaves, etc. All materials requiring rehumidification are applicable to this application. The high-temperature steam pressure is: 0. 0.05-0.25 MPa, the steam temperature is the saturated steam temperature corresponding to the pressure, and a saturated steam secondary heating device can be configured in the steam pipeline system to enable the saturated steam temperature to reach the process set temperature. For example, after heating by the steam secondary heating device, it can reach 168℃. When the steam moistening chamber is working, the feeding time is 10-27s, the moistening time is 15-60s, and the discharging time is 10-27s. During the moistening process, the high-temperature steam comes into contact with the material during the conveyor 202, and the moisture in the steam enters the tobacco stem to moisten it.

[0039] And a material distribution mechanism 3, which is located between the feeding mechanism 1 and the steaming mechanism 2 and is used to connect the feeding bin 101 with the first steaming bin 2a or the second steaming bin 2b, so that at least one steaming bin is in a steaming state at any time.

[0040] When the feeding mechanism 3 connects the feeding bin 101 to the first steaming bin 2a, the material in the feeding bin 101 enters the first steaming bin 2a through the feeding mechanism 3. At this time, the first steaming bin 2a is in the feeding state, and the second steaming bin 2b is in the stem-moistening state, where high-temperature steam moistens the tobacco stems. When the feeding mechanism 3 connects the feeding bin 101 to the second steaming bin 2b, the material in the feeding bin 101 enters the second steaming bin 2b through the feeding mechanism 3. At this time, the second steaming bin 2b is in the feeding state, and the first steaming bin 2a is in the stem-moistening state, where high-temperature steam moistens the tobacco stems. The alternating moistening of the first steaming bin 2a and the second steaming bin 2b ensures that the steaming mechanism 2 always has a moistening action, realizing alternating pulse moistening of the first steaming bin 2a and the second steaming bin 2b. This indirectly enables the material to undergo uninterrupted continuous moistening, thereby saving feeding and discharging waiting time and improving moistening efficiency.

[0041] In some examples, such as Figure 4 As shown, the conveyor 202 is a screw conveyor, including a main shaft and helical blades extending helically along the axis of the main shaft. During the rotation of the main shaft and the helical blades, the tobacco stems can be continuously conveyed.

[0042] In some examples, such as Figure 4As shown, the first evaporation chamber 2a and the second evaporation chamber 2b also include a grate 203 located between the screw conveyor and the pressure cylinder 201 for solid-liquid separation. After the high-temperature steam comes into contact with the tobacco stems for heat exchange, condensate will be generated. The grate 203 has multiple filter holes, which allow only condensate to pass through while preventing tobacco stems from passing through. This separates the tobacco stems from the condensate, keeping the tobacco stems moist while preventing them from being soaked and softened, thereby improving the quality of moistening the tobacco stems.

[0043] In some examples, such as Figure 4 As shown, the pressure-bearing cylinder 201 has a pressure-bearing cavity inside and has an inlet 204, an outlet 205, a steam inlet 206, a pressure relief port 207, and a drain port 211 communicating with the pressure-bearing cavity. An inlet valve 4 is installed on the inlet 204, and an outlet valve 5 is installed on the outlet 205. Steam enters the pressure-bearing cavity from the steam inlet 206 and fills the entire pressure-bearing cavity. Tobacco stems enter the pressure-bearing cavity from the inlet 204 and are discharged from the outlet 205. The inlet 204 and the outlet 205 are located at opposite ends of the conveying direction of the screw conveyor to ensure that the steam and tobacco stems are in full contact. The inlet valve 4 and the outlet valve 5 can maintain the pressure and temperature environment of the pressure-bearing cavity during the feeding and discharging process, and have good sealing performance.

[0044] In some examples, such as Figure 5 As shown, the material distribution mechanism 3 includes a material distribution bin 301 connected to the feeding bin 101, a first material distribution port 302 connecting the material distribution bin 301 to the feeding port 204 of the first steaming bin 2a, a second material distribution port 303 connecting the material distribution bin 301 to the feeding port 204 of the second steaming bin 2b, a flap 304 for blocking the first material distribution port 302 or the second material distribution port 303, and a driving member 305 for driving the flap 304 to rotate. When the driving member 305 drives the flap 304 to rotate into the first material distribution port 302, the material distribution bin 301 and the first steaming bin 2a are blocked by it, and the material distribution bin 301 and the second steaming bin 2b can be connected for feeding. When the driving member 305 drives the flap 304 to rotate into the second material distribution port 303, the material distribution bin 301 and the second steaming bin 2b are blocked by it, and the material distribution bin 301 and the first steaming bin 2a can be connected for feeding.

[0045] In some examples, such as Figure 4As shown, the inner peripheral wall of the pressure-bearing cylinder 201 or the outer peripheral wall of the grate cylinder 203 protrudes to form a support protrusion 208 for supporting the grate cylinder 203 so that it is suspended inside the pressure-bearing cylinder 201. That is, the support protrusion 208 can be located inside the pressure-bearing cylinder 201 or on the grate cylinder 203, and the support protrusion 208 is welded and fixed to the pressure-bearing cylinder 201 or the grate cylinder 203 or integrally formed. In this embodiment, the support protrusion 208 is fixed on the grate cylinder 203, and there are multiple protrusions that are spaced apart along the axial direction of the grate cylinder 203 so that the grate cylinder 203 and the pressure-bearing cylinder 201 are coaxially arranged and will not be tilted along their entire length.

[0046] In some examples, such as Figures 1-3 As shown, the stem lubricator also includes a silencer conveyor 6 connected to the discharge port 205 of the pressure cylinder 201, a discharge valve 7 installed at the discharge port of the silencer conveyor 6, a discharge dehumidification hood 8 installed at the steam outlet of the silencer conveyor 6, and a feed dehumidification hood 9 installed at the steam outlet of the feed mechanism 1. Both the feed dehumidification hood 9 and the discharge dehumidification hood 8 are conical structures with a smaller top and a larger bottom, and their smaller ends respectively form a feed dehumidification port 901 and a discharge dehumidification port 801. The silencer conveyor 6 has a cleaning water inlet 601 and a drain outlet 602.

[0047] When the tobacco stems are fed, the steam in the feed bin 101 enters the feed exhaust hood 9 from the steam outlet at the top and is discharged to the depressurization container through the feed exhaust port 901. The tobacco stems enter the distribution mechanism 3 from the material outlet at the bottom.

[0048] After the tobacco stems are discharged from the discharge port 205, they will carry some high-pressure steam. If they are directly introduced into the normal pressure environment, they will cause noise pollution. Therefore, a silencer conveyor 6 is installed at the discharge port 205 of the pressure cylinder 201. The silencer conveyor can be a screw conveyor. During the process of pushing the material, the steam can enter the discharge vent 8 through the steam outlet and enter the depressurization container through the discharge vent 801 for depressurization treatment.

[0049] In some examples, such as Figure 4 As shown, the pressure-bearing cylinder 201 includes a cylinder body 2011, a blind end cap 2012 and an outlet end cap 2013 respectively fixed at both ends of the cylinder body 2011, and the cylinder body 2011, the blind end cap 2012 and the outlet end cap 2013 enclose and form the aforementioned pressure-bearing cavity.

[0050] The main shaft of the screw conveyor is mounted on the blind end cover 2012 and the output shaft end cover 2013 at both ends, and a support and sealing structure 209 is installed between the main shaft and the blind end cover 2012 and the output shaft end cover 2013. The support and sealing structure 209 includes a bearing assembly and a sealing assembly. The main shaft extends out of the output shaft end cover 2013 and is equipped with a transmission sprocket 210, which is connected to a motor.

[0051] In some examples, such as Figure 4 As shown, both the blind end cap 2012 and the output shaft end cap 2013 protrude towards the grate 203 to form a supporting step 2014 for supporting the end of the grate 203. That is, the middle part of the grate 203 is supported by the supporting protrusion 208, and the end is supported by the supporting step 2014, thereby ensuring the stability of the grate 203 installation in all directions.

[0052] In some examples, the conveyor 202 is a mesh belt conveyor 202, the mesh belt of which has mesh holes for condensate to leak out. While the mesh belt conveyor 202 is conveying materials, condensate leaks out from the mesh holes, thereby achieving the separation of tobacco stems and condensate.

[0053] Working principle:

[0054] When the driving component 305 drives the flap 304 to rotate into the first dispensing port 302, the dispensing bin 301 and the first steaming bin 2a are blocked by it, and the dispensing bin 301 and the second steaming bin 2b are connected. The material in the feeding bin 101 enters the second steaming bin 2b through the second dispensing port 303. At this time, the second steaming bin 2b is in the feeding state and the first steaming bin 2a is in the humidification state.

[0055] When the driving component 305 drives the flap 304 to rotate into the second dispensing port 303, the dispensing bin 301 and the second steaming bin 2b are blocked by it, and the dispensing bin 301 and the first steaming bin 2a are connected. The material in the feeding bin 101 enters the first steaming bin 2a through the first dispensing port 302. At this time, the first steaming bin 2a is in the feeding state and the second steaming bin 2b is in the humidification state.

[0056] During the moistening process, the tobacco stems enter the pressure chamber through the feed inlet 204 and move towards the discharge outlet 205 under the action of the screw conveyor 202. Steam enters the pressure chamber wall through the steam inlet 206 and fills the entire pressure chamber. The tobacco stems come into contact with the steam for heat exchange, and the condensate formed is separated from the tobacco stems by the grate 203. After moistening, the tobacco stems enter the silencer conveyor 6 through the discharge outlet 205. During the pushing process, a small amount of steam carried by the tobacco stems can enter the discharge dehumidification hood 8 through the steam outlet and enter the depressurization container through the discharge dehumidification port 801 for depressurization treatment.

[0057] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pulse-type steam stem-wetting machine, characterized in that: include: The feeding mechanism (1) includes a feeding bin (101); The evaporation mechanism (2) includes at least a first evaporation chamber (2a) and a second evaporation chamber (2b). The first evaporation chamber (2a) and the second evaporation chamber (2b) each include a pressure cylinder (201) for containing materials and steam to pressurize and humidify the materials by steam, and a conveyor (202) installed in the pressure cylinder (201). And a material distribution mechanism (3), which is located between the feeding mechanism (1) and the steaming mechanism (2) and is used to connect the feeding bin (101) with the first steaming bin (2a) or the second steaming bin (2b).

2. The pulse-type steam stem-wetting machine according to claim 1, characterized in that: The conveyor (202) is a screw conveyor.

3. The pulse-type steam stem-wetting machine according to claim 2, characterized in that: The first evaporation chamber (2a) and the second evaporation chamber (2b) also include a grate (203) located between the screw conveyor and the pressure cylinder (201) for solid-liquid separation.

4. The pulse-type steam stem-wetting machine according to claim 1, characterized in that: The pressure cylinder (201) has a pressure chamber inside and has an inlet (204), an outlet (205), a steam inlet (206) and a pressure relief port (207) connected to the pressure chamber. An inlet valve (4) is installed on the inlet (204) and an outlet valve (5) is installed on the outlet (205).

5. A pulse-type steam stem-wetting machine according to claim 4, characterized in that: The material distribution mechanism (3) includes a material distribution bin (301) connected to the feeding bin (101), a first material distribution port (302) connecting the material distribution bin (301) to the feeding port (204) of the first steaming bin (2a), a second material distribution port (303) connecting the material distribution bin (301) to the feeding port (204) of the second steaming bin (2b), a flap (304) for blocking the first material distribution port (302) or the second material distribution port (303), and a drive component (305) for driving the flap (304) to flip.

6. A pulse-type steam stem-wetting machine according to claim 3, characterized in that: The inner peripheral wall of the pressure-bearing cylinder (201) or the outer peripheral wall of the grate (203) has a protruding support protrusion (208) for supporting the grate (203) so that it is suspended inside the pressure-bearing cylinder (201).

7. A pulse-type steam stem-wetting machine according to claim 1, characterized in that: The stem lubricator also includes a silencer conveyor (6) connected to the outlet (205) of the pressure cylinder (201), a discharge valve (7) installed at the discharge port of the silencer conveyor (6), a discharge dehumidification hood (8) installed at the steam outlet of the silencer conveyor (6), and a feed dehumidification hood (9) installed at the steam outlet of the feed mechanism (1).

8. A pulse-type steam stem-wetting machine according to claim 3, characterized in that: The pressure-bearing cylinder (201) includes a cylinder body (2011), blind end caps (2012) and an outlet shaft end cap (2013) respectively fixed at both ends of the cylinder body (2011); The main shaft of the screw conveyor is mounted on the blind end cover (2012) and the output shaft end cover (2013) at both ends, and a support sealing structure (209) is installed between the main shaft and the blind end cover (2012) and the output shaft end cover (2013). The main shaft extends out of the output shaft end cover (2013) and is equipped with a transmission sprocket (210).

9. A pulse-type steam stem-wetting machine according to claim 8, characterized in that: Both the blind end cap (2012) and the output shaft end cap (2013) protrude toward the grate (203) and form a supporting step (2014) for supporting the end of the grate (203).

10. A pulse-type steam stem-wetting machine according to claim 1, characterized in that: The conveyor (202) is a mesh belt conveyor.

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