CN103564639B - A kind of SIROX steam expansion machine of automated cleaning - Google Patents

Abstract

The invention relates to a self-cleaning SIROX steam expander. The SIROX steam expander includes a feed casing, a feed vibration tank, an air lock, an airflow cyclone separator, a blanking port, a vibration tank cover, an exhaust fan, and a moisture exhaust Pipeline and vibrating tank, the cleaning system includes five water pipes, which are respectively connected to the feed casing, the cover plate of the vibrating tank, the discharge port of the vibrating tank, the air cyclone separator and the nail rake of the air cyclone separator. Pneumatic diaphragm shut-off valves are installed on the road water pipes respectively, and the corners of the pipes at the outlet end of the four-way water pipes connected to the feed casing, the vibrating tank cover, the outlet of the vibrating tank and the airflow cyclone separator There is one evacuation pipeline at the bottom, and a pneumatic ball valve is installed on the evacuation pipeline. The pneumatic diaphragm stop valve is normally closed, and the pneumatic ball valve is normally open. The invention realizes the automatic cleaning of the equipment, also solves the problem of residual or leakage of clean water in the pipeline, and realizes the stability of the operation of the equipment.

Description

A self-cleaning SIROX steam expander

technical field

The present invention relates to SIROX steam expanders.

Background technique

Steam expansion is an important process in the cigarette shred production line. The SIROX steam expander (as shown in Figure 1) consists of a feed casing 1, a feed vibration tank 2, an air lock 3, an airflow cyclone separator 4, a blanking port 5, a vibration tank cover plate 6, an exhaust fan 7, an exhaust The tidal pipeline 8 and the vibrating tank 9 are formed. The process principle is that during the conveying process of the equipment, a large amount of saturated steam is used to increase the temperature and humidity of the leaf silk, and then transport it to the silk drying machine downstream of the production line for rapid drying. The water in the leaf silk cells evaporates rapidly, making the leaf silk tissue The structure is fully inflated. The steam expansion effect of the silk expander directly determines the physical indicators of the silk in the production process and indirectly affects the equipment operation status of the silk dryer. Due to the large steam flow rate of the equipment, it is easy to cause fouling and soot residues inside the equipment.

The applicant designed 5 water pipes in the original SIROX steam expander to clean the feeding casing, the vibrating tank cover, the vibrating tank outlet, the air cyclone separator and the air cyclone separator nail rake respectively. After the automatic cleaning program is started, each pipeline will perform intermittent cleaning on each key part according to the set program. However, during the use of the equipment, after a period of operation, it was found that among the five cleaning pipelines, except for the airflow cyclone separator nail rake cleaning pipeline that shared the same pipeline with the steam pipeline, the remaining four pipelines had the following problems:

① Since the terminal outlet of the cleaning pipeline is above the vibrating tank, there is a certain drop from the pneumatic diaphragm stop valve. After each automatic cleaning, as the valve is closed, a section of water column will be formed at the end of the cleaning pipeline. Once the equipment is in operation, the retained water will flow to the logistics channel with the vibration of the equipment.

②The cleaning water pipeline of this equipment adopts SAMSONTYP3241-1 pneumatic diaphragm shut-off valve. The spring in the valve loads the sealing packing through the guide rod to seal the valve core. Repeated use will cause slight wear of the packing and make the sealing surface incomplete, resulting in cleaning Water leakage, and the pressure difference of 6bar before and after the valve will worsen the leakage of the valve to a certain extent. Once the valve leaks, the clean water will continue to overflow to the shredded tobacco under the action of the pressure difference, which will cause the central value of the KLD shred drying machine cylinder wall temperature adjustment in the subsequent process to rise as a whole, and seriously affect the shredded tobacco quality.

Contents of the invention

In order to facilitate the cleaning of the equipment, the purpose of the present invention is to provide a self-cleaning SIROX steam expander. The steam expander is equipped with an automatic cleaning system, which realizes the automatic cleaning of the equipment and also solves the problem of residual cleaning water or seepage in the pipeline. The problem of leakage can be realized to realize the stability of the operation of the equipment and the high efficiency of production.

In order to achieve the above object, the present invention adopts the following technical solutions:

A self-cleaning SIROX steam expander, the SIROX steam expander includes a feed casing, a feed vibration tank, an air lock, an airflow cyclone separator, a blanking port, a vibration tank cover, an exhaust fan, and a moisture exhaust pipeline And the vibrating tank, the cleaning system includes five water pipes, the five water pipes are respectively connected to the feed casing, the vibrating tank cover plate, the discharge port of the vibrating tank, the air cyclone separator and the nail rake of the air cyclone separator. The five-way water pipes are respectively equipped with pneumatic diaphragm shut-off valves, among which the outlet end pipes of the pneumatic diaphragm shut-off valves of the four-way water pipes connected to the feed casing, the vibrating tank cover, the outlet of the vibrating tank and the airflow cyclone separator At the bottom of the corner of the road, there is an emptying pipeline respectively, and a pneumatic ball valve is arranged on the emptying pipeline, wherein the pneumatic diaphragm cut-off valve is in the normally closed state, and the pneumatic ball valve is in the normally open state; and the pneumatic ball valve and the pneumatic diaphragm cut-off The valves have opposite open and closed states. When the front-end pneumatic diaphragm stop valve is opened, the newly added pneumatic ball valve is closed, and the clean water passes through the original cleaning pipeline to clean the equipment; road discharge.

Since the opening and closing of the above-mentioned additional pneumatic ball valve needs to be controlled by the compressed air pipeline, and the compressed air valve island of SIROX does not reserve enough compressed air circuit modules, for this reason, according to the opening and closing logic relationship between the valves, the existing pressure To transform the empty pipeline, add a three-way tube to the control pressure pipeline of the pneumatic diaphragm shut-off valve connected to the feed casing, the cover plate of the vibrating tank, the outlet of the vibrating tank and the four-way water pipe of the air cyclone separator. port, and each is provided with a pressure pipeline for controlling the pneumatic ball valve. The addition of the three-way interface makes the pneumatic diaphragm stop valve and the pneumatic ball valve form a linkage relationship. When the corresponding branch valve island module has a signal, the pneumatic diaphragm stop valve opens and the pneumatic ball valve closes; when the module has no signal, The pneumatic diaphragm shut-off valve is closed while the pneumatic ball valve is opened.

The present invention has the following advantages owing to adopting above-mentioned technical scheme:

① Empty the clean water retained in the pipeline through the linkage relationship between the pneumatic ball valve and the pneumatic diaphragm shut-off valve;

②The hidden danger of flowing into the production line due to the leakage of the pneumatic diaphragm shut-off valve is eliminated through the emptying pipeline in the normally open state;

③ Simultaneously control the action of two pipeline valves with one air pressure control signal;

④ Through the water collection function of the emptying pipeline and the water collection tank, the leakage status of the pneumatic diaphragm stop valve can be quantified, and the timeliness of equipment maintenance can be improved.

Description of drawings

Figure 1 is a structural diagram of a SIROX steam expander.

Fig. 2 is the air pressure control diagram of cleaning pipeline of SIROX steam expander.

detailed description

The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

A self-cleaning SIROX steam expander as shown in Figure 1 and Figure 2, the SIROX steam expander includes a feed casing 1, a feed vibration tank 2, an air lock 3, an airflow cyclone separator 4, and a discharge port 5. Vibration tank cover plate 6, exhaust fan 7, moisture discharge pipeline 8 and vibration tank 9, the cleaning system includes five water pipes 11, 12, 13, 14, 15, five water pipes 11, 12, 13, 14 and 15 are respectively connected to the feeding casing 1, the vibrating tank cover plate 6, the discharge port of the vibrating tank 9, the airflow cyclone separator 4 and the nail rake of the airflow cyclone separator 4, in the five-way water pipes 11, 12, 13, 14 and 15 are respectively provided with pneumatic diaphragm shut-off valves 16, in which the four-way water pipes 11, 12 and 13 are connected to the feed casing 1, the vibrating tank cover plate 6, the discharge port of the vibrating tank and the airflow cyclone separator 4 14, the pneumatic diaphragm shut-off valve 16 outlet end pipeline corner bottom is respectively provided with an emptying pipeline 18, the emptying pipeline 18 is provided with a pneumatic ball valve 17, wherein the pneumatic diaphragm shut-off valve 16 is in a normally closed state, the pneumatic The ball valve 17 is in a normally open state; and the pneumatic ball valve 17 and the pneumatic diaphragm cut-off valve 16 have opposite opening and closing states. When the front-end pneumatic diaphragm stop valve 16 is opened, the newly added pneumatic ball valve 17 is closed, and the clean water passes through the original cleaning pipeline to clean the equipment; when the front-end pneumatic diaphragm stop valve 16 is closed, the newly added pneumatic ball valve 17 is opened, and the stranded clean water It is discharged from the newly added pipeline, connected in parallel to a main pipe 20, and discharged to the sump.

Since the opening and closing of the above-mentioned additional pneumatic ball valve 17 needs to be controlled by the compressed air pipeline, and the compressed air valve island 10 of SIROX does not reserve enough compressed air circuit modules, for this reason, according to the opening and closing logic relationship between the valves, the existing The compressed air pipeline is transformed, and the pneumatic diaphragms of the four-way water pipes 11, 12, 13, 14 connected to the feed casing 1, the vibrating tank cover plate 6, the discharge port of the vibrating tank and the airflow cyclone separator 4 A three-way interface 19 is respectively added to the control pressure pipeline of the shut-off valve 16, and a pressure pipeline is provided for controlling the pneumatic ball valve 17. The addition of the three-way interface 19 makes the pneumatic diaphragm stop valve 16 and the pneumatic ball valve 17 form a linkage relationship. When the corresponding branch valve island module has a signal, the compressed air pipeline enters the air, and the two valves are controlled by the compressed air at the same time. At this time, the pneumatic diaphragm shut-off valve 16 is opened, and the pneumatic ball valve 17 is closed at the same time; when the module has no signal, the pressure pipeline is emptied, and the two valves lose power at the same time and return to the initial state. At this time, the pneumatic diaphragm shut-off valve 16 is closed, while the pneumatic ball valve 17 is opened, reaching the preset target.

When the automatic cleaning system of the present invention is started, the pneumatic diaphragm cut-off valve 16 of the main pipeline at the front end is opened, and the newly added pneumatic ball valve 17 is closed. It flows down to the corresponding equipment parts for equipment cleaning. When the automatic cleaning program stops, the pneumatic diaphragm shut-off valve 16 is closed, the pneumatic ball valve 17 is opened, and the water column trapped between the outlet at the end of the cleaning pipeline and the pneumatic diaphragm shut-off valve 16 flows out from the emptying pipeline 18 to the collector due to gravity. sink. In addition, once the main pipeline pneumatic diaphragm shut-off valve leaks, the leaked water will also flow out from the emptying pipeline 18 instead of leaking into the production line. Equipment maintenance personnel judge whether there is leakage in the corresponding pneumatic diaphragm shut-off valve 16 by observing whether there is water flowing out from the outlet of the emptying pipeline 18 during the production process, and take measures in time.

Claims (1)

1. the SIROX steam expansion machine of an automated cleaning, this SIROX steam expansion machine comprises charging case, charging is shaken groove, gas lock, air-flow cyclone separator, blanking port, shake groove cover plate, exhaust gas fan, humidity discharging pipeline and the groove that shakes, it is characterized in that: described SIROX steam expansion machine also comprises five road water pipes, five road water pipes are connected respectively to charging case, shake groove cover plate, shake the discharging opening of groove, the rake of air-flow cyclone separator and air-flow cyclone separator, five road water pipes are respectively equipped with pneumatic diaphragm stop valve, wherein be connected to charging case, shake groove cover plate, shake the discharging opening of groove and four road water pipes of air-flow cyclone separator pneumatic diaphragm stop valve port of export pipeline turning bottom be respectively equipped with an emptying pipeline in road, emptying pipeline is provided with pneumatic ball valve, wherein pneumatic diaphragm stop valve is normally off, pneumatic ball valve is normally open, and described pneumatic ball valve has contrary open and-shut mode with pneumatic diaphragm stop valve, and increase a three-way interface respectively being connected to charging case, on the control pressure blank pipe road of the pneumatic diaphragm stop valve of four road water pipes of the discharging opening of the groove cover plate that shakes, the groove that shakes and air-flow cyclone separator, and be respectively equipped with a pressure blank pipe road, road for controlling described pneumatic ball valve, when auto cleaning system starts, front end main pipe rail pneumatic diaphragm stop valve is opened, newly-increased pneumatic ball valve is closed, then clean water is by only walking original cleaning channels after pneumatic diaphragm stop valve, and clean water carries out equipment cleaning at differential pressure action downstream to corresponding equipment position, when automated cleaning program stopped, pneumatic diaphragm stop valve is closed, and pneumatic ball valve is opened, and is trapped in the water column between cleaning channels end outlet to pneumatic diaphragm stop valve due to the effect of gravity and flows out to water leg from emptying pipeline, once seepage appears in main pipe rail pneumatic diaphragm stop valve, then the water of seepage also can flow out from emptying pipeline, and can not leak in production line, whether corrective maintenance personnel be there are flowing out by evacuated tube way outlet in observation production process judges whether corresponding pneumatic diaphragm stop valve has occurred seepage and taken measures in time.