CN218478711U

CN218478711U - Natural tea-oil camellia fruit draws decoloration dewatering equipment of leaf seed oil

Info

Publication number: CN218478711U
Application number: CN202221433200.2U
Authority: CN
Inventors: 龚振赵; 龚震超; 龚春野
Original assignee: Fujian Yike Tea Agricultural Technology Co ltd
Current assignee: Fujian Yike Tea Agricultural Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-02-14
Anticipated expiration: 2032-06-08

Abstract

The utility model belongs to the technical field of the tea-seed oil draws technique and specifically relates to a decoloration dewatering equipment that natural tea-oil camellia fruit drawed leaf seed oil, including the casing. Through inside from last decoloration room and the filter chamber of down setting gradually of casing, and the fixed equipment box that has set up right extension in the middle part of the inner wall of the left side of the decoloration room that dewaters, and set up the slope of high left and low right side on the bottom plate of equipment box and set up the ripple guide plate, the material is leading-in to ripple guide plate top through metal heating pipe under the supply of feed pump, in the meantime, be heated by electromagnetic induction heating coil when passing through metal heating pipe, the crude oil that is heated flows on the ripple guide plate, realize the dehydration to crude oil, crude oil after the dehydration gets into the indoor decoloration that stirs of decoloration, oil after the decoloration enters into the filter chamber, loop through stainless steel filter and water oil separating membrane and filter impurity and water, obtain tea seed oil product oil, the equipment, the disposable decoloration dehydration to tea seed oil can be realized to the heating.

Description

Natural tea-oil camellia fruit draws decoloration dewatering equipment of leaf seed oil

Technical Field

The utility model relates to a tea-seed oil draws technical field, specifically is a natural tea-seed oil fruit draws decoloration dewatering equipment of leaf seed oil.

Background

In order to improve the quality of tea seed oil, the processing steps of deacidification, degumming, decolorization, dehydration, deodorization, dewaxing and the like are sequentially carried out after squeezing, namely six-step decolorization, so that high-quality tea seed oil can be obtained, wherein the decolorization and dehydration are particularly important, the process of adding acid soil, activated carbon and other adsorbents into oil to adsorb chlorophyll pigments is called decolorization, the dehydration is to remove redundant water, the acid value is ensured not to grow in the deodorization process, fatty glyceride can be hydrolyzed into free fatty acid under the high-temperature condition, the existing tea seed oil decolorization and dehydration are generally processed by two devices, the device cost is high, two heating mechanisms are generally needed to carry out processing at different temperatures in the two processes, and the energy consumption is high, so that the dewatering device for extracting the tea seed oil from the natural oil-tea camellia fruits is provided for decolorizing the tea seed oil.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a decoloration dewatering equipment that natural tea-oil camellia fruit drawed leaf seed oil, through inside from last dehydration decoloration room and the filter chamber down setting gradually of casing, and dehydration decoloration room left side inner wall middle part is fixed to have set up the equipment box that extends right, and set up the low slope of side-to-side on the bottom plate of equipment box and set up ripple guide plate, the material is leading-in to ripple guide plate top through metal heating pipe under the supply of feed pump, and the period, be heated by electromagnetic induction heating coil heating when passing through metal heating pipe, the crude oil that is heated flows on ripple guide plate, and a long-term service life, by the vacuum pump suction after the steam evaporation, realize the dehydration to crude oil, crude oil after the dehydration gets into dehydration decoloration room, stir the cooling through the agitator, reduce to the value when the temperature, add the decolorant of material incasement to the dehydration indoorly, continue to stir the decoloration, oil after the oil enters into in the filter chamber, loop through stainless steel filter and water oil separating membrane filtration impurity and water, obtain tea seed oil product oil, in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a decoloration dewatering equipment that natural tea-oil camellia fruit drawed leaf seed oil includes:

the device comprises a shell, a dehydration and decoloration chamber and a filter chamber are sequentially arranged in the shell from top to bottom, an equipment box extending rightwards is fixedly arranged in the middle of the inner wall of the left side of the dehydration and decoloration chamber, and the inside of the equipment box is hollow;

the heating dehydration mechanism comprises a heating feeding structure and a corrugated guide plate arranged on the top plate of the equipment box, the corrugated guide plate is obliquely arranged in a left-high and right-low manner, and a feed opening is formed in the right end of the corrugated guide plate;

the device comprises a decoloring mechanism, a stirring mechanism and a feeding mechanism, wherein the decoloring mechanism comprises a stirring device arranged on a bottom plate in a dehydration decoloring chamber, a stirring motor is fixedly arranged on the bottom plate in the equipment box, a motor shaft of the stirring motor is connected with a rotating shaft of the stirring device, the feeding mechanism comprises a material box arranged on the bottom plate in the equipment box, a discharging pipe at the bottom of the material box penetrates through the bottom plate of the equipment box, and a discharging device is arranged on the discharging pipe;

the filtering mechanism comprises a stainless steel filtering plate and an oil-water separation membrane which are sequentially and transversely arranged in a filtering chamber from top to bottom.

As a preferred scheme, the bottom of the dehydration and decoloration chamber is provided with a discharging hopper extending into the filtering chamber, and the discharging hopper is provided with a discharging valve.

As an optimal scheme, the heating feeding structure comprises a mounting frame and a feeding pump which are sequentially arranged on a panel on the left side of the machine shell from top to bottom, a metal feeding pipe is arranged between the mounting frame, an electromagnetic induction heating coil is wound outside the metal feeding pipe, a feeding pipe of the feeding pump is connected with a feeding hole in the bottom of the metal feeding pipe, and a discharging hole in the top of the metal feeding pipe is provided with a water-removing decoloration chamber extending to the upper part of the left end of the corrugated flow guide plate.

As a preferred scheme, a vacuum pump is fixedly arranged on a top plate of the machine shell, a pumping pipe of the vacuum pump is connected with the recovery box, an air outlet pipe is arranged at the top of the dehydration and decoloration chamber, a condenser is arranged on the air outlet pipe, and a discharging pipe of the condenser is connected with the recovery box.

As a preferred scheme, the right inner wall of the filtering chamber is provided with a discharging pipe respectively on the right sides of the bottom plate, the stainless steel filtering plate and the oil-water separation membrane.

As a preferred scheme, a control box is arranged on a right side panel of the casing, a frequency converter and a relay group are sequentially arranged on a bottom plate inside the control box from left to right, a PLC (programmable logic controller) is arranged on the inner wall of the right side of the control box, control signal input ends of relays in the frequency converter and the relay group are respectively connected with a control signal output end of the PLC through electric signals, positive and negative electric energy output ends of the frequency converter are connected with positive and negative electric energy input ends of an electromagnetic induction heating coil through leads, and electric energy input ends of the frequency converter, a blanking valve of a stirring motor and a vacuum pump are respectively connected with corresponding relays in the relay group through leads.

As a preferred scheme, fixed being provided with on the bottom plate of equipment box detects the head down just to the infrared temperature sensor of hopper down, infrared temperature sensor's detected signal output passes through the detected signal incoming end of signal connection PLC controller.

By the above-mentioned the technical scheme provided by the utility model, the utility model provides a pair of natural tea-oil camellia fruit draws decoloration dewatering equipment of leaf seed oil, beneficial effect is: through setting gradually dehydration decoloration room and filter chamber from last down in the casing inside, and dehydration decoloration room left side inner wall middle part is fixed to be set up the equipment box that extends right, and set up the slope of high left and low right side on the bottom plate of equipment box and set up the ripple guide plate, the material is leading-in to ripple guide plate top through metal heating pipe under the supply of feed pump, in the meantime, be heated by electromagnetic induction heating coil when passing through metal heating pipe, the crude oil that is heated flows on the ripple guide plate, in the meantime, by the suction of vacuum pump behind the steam evaporation, realize the dehydration to crude oil, the crude oil after the dehydration gets into dehydration decoloration room, stir the cooling through the agitator, when the temperature reduces to the value of setting, add the decolorant in the material case to the dehydration decoloration room, continue stirring decoloration, the oil after the decoloration gets into the filter chamber, loop through stainless steel filter plate and oil water separating membrane impurity and water, obtain tea seed oil finished product oil.

Drawings

Fig. 1 is the utility model relates to a decoloration dewatering equipment overall structure sketch map of natural tea-oil camellia fruit extraction leaf seed oil.

In the figure: 1. a housing; 11. a dehydration and decoloration chamber; 12. a filtering chamber; 2. an equipment box; 21. a corrugated baffle; 22. a mounting frame; 23. a metal heating pipe; 24. an electromagnetic induction heating coil; 25. a feed pump; 3. a condenser; 31. a recycling bin; 32. a vacuum pump; 4. a stirring motor; 41. an infrared temperature sensor; 42. a material box; 43. a blanking device; 44. a feeding hopper; 45. a stirrer; 46. a discharge valve; 5. a stainless steel filter plate; 51. an oil-water separation membrane; 52. a discharge pipe; 6. a control box; 61. a frequency converter; 62. a relay group; 63. a PLC controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the present invention.

As shown in fig. 1, the embodiment of the utility model provides a decoloration dewatering equipment that leaf seed oil was drawed to natural tea-oil camellia fruit, include:

the device comprises a machine shell 1, wherein a dehydration and decoloration chamber 11 and a filtering chamber 12 are sequentially arranged in the machine shell 1 from top to bottom, an equipment box 2 extending rightwards is fixedly arranged in the middle of the inner wall of the left side of the dehydration and decoloration chamber 11, and the equipment box 2 is hollow;

the heating and dehydrating mechanism comprises a heating and feeding structure and a ripple guide plate 21 arranged on a top plate of the equipment box 2, the ripple guide plate 21 is arranged in a manner of inclining from high to low on the left and right, a feed opening is arranged at the right end of the ripple guide plate 21, the heating and feeding structure comprises an installation frame 22 and a feed pump 25 which are sequentially arranged on a left side panel of the machine shell 1 from top to bottom, a metal feed pipe 23 is arranged between the installation frames 22, an electromagnetic induction heating coil 24 is wound outside the metal feed pipe 23, a feed pipe of the feed pump 25 is connected with a feed opening at the bottom of the metal feed pipe 23, and a discharge opening at the top of the metal feed pipe 23 is provided with a discharge opening which extends into the dehydration and decoloration chamber 11 and extends to the upper part of the left end of the ripple guide plate 21;

the decoloring device comprises a decoloring mechanism, the decoloring mechanism comprises a stirring structure and a feeding structure, the stirring structure comprises a stirrer 45 arranged on a bottom plate inside a dehydration decoloring chamber 11, a stirring motor 4 is fixedly arranged on the bottom plate inside an equipment box 2, a motor shaft of the stirring motor 4 is connected with a rotating shaft of the stirrer 45, the feeding structure comprises a material box 42 arranged on the bottom plate inside the equipment box 2, a discharging pipe at the bottom of the material box 42 penetrates through the bottom plate of the equipment box 2, and a discharging device 43 is arranged on the discharging pipe;

the filtering mechanism comprises a stainless steel filtering plate 5 and an oil-water separating membrane 51 which are transversely arranged in the filtering chamber 12 from top to bottom in sequence.

In the above device, the bottom of the dehydration and decoloration chamber 11 is provided with a discharge hopper 44 extending into the filtration chamber 12, and the discharge hopper 44 is provided with a discharge valve 46.

In the above device, a vacuum pump 32 is fixedly arranged on the top plate of the machine case 1, a material pumping pipe of the vacuum pump 32 is connected with the recovery box 31, an air outlet pipe is arranged at the top of the dehydration and decoloration chamber 11, a condenser 3 is arranged on the air outlet pipe, and a material discharging pipe of the condenser 3 is connected with the recovery box 31.

In the above device, a discharge pipe 52 is provided on the right inner wall of the filtering chamber 12 on the right side of the bottom plate, the stainless steel filtering plate 5 and the oil-water separation membrane 51, respectively.

In the above device, a control box 6 is arranged on a right side panel of the casing 1, a frequency converter 61 and a relay group 62 are sequentially arranged on a bottom plate inside the control box 6 from left to right, a PLC controller 63 is arranged on an inner wall on the right side of the control box 6, control signal input ends of relays in the frequency converter 61 and the relay group 62 are respectively connected with a control signal output end of the PLC controller 63 through electric signals, positive and negative electric energy output ends of the frequency converter 61 are connected with positive and negative electric energy input ends of the electromagnetic induction heating coil 24 through wires, the frequency converter 61, a blanking valve 46 of the stirring motor 4 and an electric energy input end of the vacuum pump 32 are respectively connected with corresponding relays in the relay group 62 through wires.

In the device, the bottom plate of the equipment box 2 is fixedly provided with the infrared temperature sensor 41 with a detection head facing downwards to the blanking hopper 44, and the detection signal output end of the infrared temperature sensor 41 is connected with the detection signal input end of the PLC 63 through an electric signal.

The utility model discloses a decoloration dewatering equipment that leaf seed oil was drawed to natural tea-oil camellia fruit, through inside from last dehydration decoloration room and the filter chamber down setting gradually of casing, and dehydration decoloration room left side inner wall middle part is fixed to have set up the equipment box that extends right, and set up the low slope of side-to-side on the bottom plate of equipment box and set up ripple guide plate, the material is leading-in to ripple guide plate top through metal heating pipe under the supply of feed pump, and the term, be heated by electromagnetic induction heating coil heating when passing through metal heating pipe, the crude oil that is heated flows on ripple guide plate, and the term, by the vacuum pump suction after the vapor evaporation, realize the dehydration to crude oil, crude oil after the dehydration gets into dehydration decoloration room, stir the cooling through the agitator, reduce to the value when the temperature, add the decoloration agent in the material incasement into the dehydration decoloration room, continue to stir, the oil after the decoloration enters into in the filter chamber, loop through stainless steel filter plate and profit separation membrane and filter impurity and water, obtain tea seed oil finished product oil.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings:

please refer to fig. 1, which comprises a housing 1, a dehydration and decolorization chamber 11 and a filtration chamber 12 are sequentially arranged in the housing 1 from top to bottom, an equipment box 2 extending to the right is fixedly arranged in the middle of the inner wall of the left side of the dehydration and decolorization chamber 11, the equipment box 2 is hollow, a corrugated guide plate 21 is arranged on the top plate of the equipment box 2, the corrugated guide plate 21 is arranged in a manner of inclining from the left to the right, a discharge port is arranged at the right end of the corrugated guide plate 21, a mounting frame 22 and a feed pump 25 are sequentially arranged on the left side panel of the housing 1 from top to bottom, a metal feed pipe 23 is arranged between the mounting frames 22, an electromagnetic induction heating coil 24 is wound outside the metal feed pipe 23, a feed pipe of the feed pump 25 is connected with the feed port at the bottom of the metal feed pipe 23, a discharge port at the top of the metal feed pipe 23 is arranged in the dehydration and decolorization chamber 11 and extends to the upper part of the left end of the corrugated guide plate 21, be provided with agitator 45 on the inside bottom plate of dehydration decoloration room 11, the fixed agitator motor 4 that is provided with on the inside bottom plate of equipment case 2, and agitator motor 4's motor shaft is connected with agitator 45's pivot, be provided with material case 42 on the inside bottom plate of equipment case 2, and the unloading pipe of material case 42 bottom runs through the setting of 2 bottom plates of equipment case, and set up unloading ware 43 on the unloading pipe, inside from last stainless steel filter 5 and the water oil separating membrane 51 of down transversely having set gradually of filter chamber 12, dehydration decoloration room 11 bottom is provided with the unloading fill 44 that stretches into in filter chamber 12, and be provided with unloading valve 46 on the unloading fill 44, respectively in the bottom plate on the right side inner wall of filter chamber 12, stainless steel filter 5 and water oil separating membrane 51 right side are provided with row material pipe 52.

Please refer to fig. 1, a vacuum pump 32 is fixedly arranged on a top plate of the casing 1, a material pumping pipe of the vacuum pump 32 is connected with a recycling box 31, an air outlet pipe is arranged at the top of the dehydration and decoloration chamber 11, a condenser 3 is arranged on the air outlet pipe, the discharging pipe of the condenser 3 is connected with the recycling box 31, water vapor is condensed when hot air passes through the condenser 3, the condensed water and air enter the recycling box 31, the vacuum pump 32 can rapidly suck out the water vapor in the oil, and the oil is dehydrated.

Referring to fig. 1, a control box 6 is disposed on a right side panel of a casing 1, a frequency converter 61 and a relay group 62 are sequentially disposed on a bottom plate inside the control box 6 from left to right, a PLC controller 63 is disposed on an inner wall on the right side of the control box 6, control signal input ends of relays in the frequency converter 61 and the relay group 62 are respectively connected to a control signal output end of the PLC controller 63 through electrical signals, positive and negative electric energy output ends of the frequency converter 61 are connected to positive and negative electric energy input ends of an electromagnetic induction heating coil 24 through wires, and the frequency converter 61, a blanking valve 46 of a stirring motor 4 and an electric energy input end of a vacuum pump 32 are respectively connected to corresponding relays in the relay group 62 through wires.

Referring to fig. 1, an infrared temperature sensor 41 with a detection head facing downward and facing the discharging hopper 44 is fixedly arranged on a bottom plate of the equipment box 2, a detection signal output end of the infrared temperature sensor 41 is connected with a detection signal input end of the PLC controller 63 through an electric signal, and the infrared temperature sensor 41 is used for detecting the temperature of the oil and providing a temperature basis for adding the decolorizing agent.

The working principle of the embodiment is as follows: the dehydration and decoloration chamber and the filtering chamber are sequentially arranged in the casing from top to bottom, an equipment box extending rightwards is fixedly arranged in the middle of the inner wall of the left side of the dehydration and decoloration chamber, a corrugated guide plate is arranged on a bottom plate of the equipment box in a high-left-high-right-low inclined mode, materials are guided into the upper portion of the corrugated guide plate through a metal heating pipe under the supply of a feeding pump, and during the process of heating the materials through the metal heating pipe, heated crude oil flows on the corrugated guide plate, and during the process of heating the materials, the materials are sucked out through a vacuum pump after water vapor evaporation, the crude oil is dehydrated, the dehydrated crude oil enters the dehydration and decoloration chamber, the materials are stirred and cooled through a stirrer, when the temperature is reduced to a set value, a decolorant in the material box is added into the dehydration and decoloration chamber, the materials are continuously stirred and decolored, the decolorized oil enters the filtering chamber, impurities and water are filtered through a stainless steel filter plate and an oil-water separation membrane sequentially, and the finished tea seed oil is obtained.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a natural tea-oil camellia fruit draws decoloration dewatering equipment of leaf seed oil which characterized in that: the method comprises the following steps:

the device comprises a machine shell (1), wherein a dehydration and decoloration chamber (11) and a filtering chamber (12) are sequentially arranged in the machine shell (1) from top to bottom, an equipment box (2) extending rightwards is fixedly arranged in the middle of the inner wall of the left side of the dehydration and decoloration chamber (11), and the equipment box (2) is hollow;

the heating and dewatering mechanism comprises a heating and feeding structure and a corrugated guide plate (21) arranged on the top plate of the equipment box (2), the corrugated guide plate (21) is obliquely arranged in a manner that the height of the corrugated guide plate is higher than the height of the corrugated guide plate, and the right end of the corrugated guide plate (21) is provided with a feed opening;

the decoloring device comprises a decoloring mechanism, wherein the decoloring mechanism comprises a stirring structure and a feeding structure, the stirring structure comprises a stirrer (45) arranged on a bottom plate inside a dehydration decoloring chamber (11), a stirring motor (4) is fixedly arranged on the bottom plate inside an equipment box (2), a motor shaft of the stirring motor (4) is connected with a rotating shaft of the stirrer (45), the feeding structure comprises a material box (42) arranged on the bottom plate inside the equipment box (2), a discharging pipe at the bottom of the material box (42) penetrates through the bottom plate of the equipment box (2) and is provided with a discharging device (43);

the filtering mechanism comprises a stainless steel filtering plate (5) and an oil-water separation membrane (51), which are sequentially and transversely arranged in a filtering chamber (12) from top to bottom.

2. The decoloring and dehydrating device for extracting the leaf seed oil from the natural oil tea fruits according to claim 1, wherein the decoloring and dehydrating device comprises: the bottom of the dehydration and decoloration chamber (11) is provided with a discharging hopper (44) extending into the filtering chamber (12), and the discharging hopper (44) is provided with a discharging valve (46).

3. The decoloring and dewatering equipment for extracting the leaf seed oil from the natural oil tea fruits according to claim 1, characterized in that: heating feeding structure includes from last mounting bracket (22) and the charge pump (25) that down set gradually on casing (1) left side panel, be provided with metal filling tube (23) between mounting bracket (22), and metal filling tube (23) outer winding electromagnetic induction heating coil (24), the feed inlet of feed pipe connection metal filling tube (23) bottom of charge pump (25), be provided with on the discharge gate at metal filling tube (23) top and stretch into and dewater and decolor chamber (11) in extend to ripple guide plate (21) left end top.

4. The decoloring and dewatering equipment for extracting the leaf seed oil from the natural oil tea fruits according to claim 1, characterized in that: the improved water purifier is characterized in that a vacuum pump (32) is fixedly arranged on a top plate of the machine shell (1), a material pumping pipe of the vacuum pump (32) is connected with the recovery box (31), an air outlet pipe is arranged at the top of the dehydration and decoloration chamber (11), a condenser (3) is arranged on the air outlet pipe, and a material discharging pipe of the condenser (3) is connected with the recovery box (31).

5. The decoloring and dewatering equipment for extracting the leaf seed oil from the natural oil tea fruits according to claim 1, characterized in that: and a discharge pipe (52) is arranged on the right inner wall of the filtering chamber (12) and on the right of the bottom plate, the stainless steel filtering plate (5) and the oil-water separation membrane (51).

6. The decoloring and dehydrating device for extracting the leaf seed oil from the natural oil tea fruits according to claim 1, wherein the decoloring and dehydrating device comprises: be provided with control box (6) on the right side panel of casing (1), turn right from a left side and set gradually converter (61) and relay group (62) on the inside bottom plate of control box (6), be provided with PLC controller (63) on the right side inner wall of control box (6), the control signal incoming end of each group's relay is respectively through the control signal output part of signal connection PLC controller (63) in converter (61) and relay group (62), the positive negative electric energy incoming end of electromagnetic induction heating coil (24) is connected through the wire to the positive negative electric energy output part of converter (61), agitator motor (4) unloading valve (46) and vacuum pump (32), the electric energy incoming end of converter (61), agitator motor (4) unloading valve (46) and vacuum pump (32) is respectively through the relay that corresponds in the wire connection relay group (62).

7. The decoloring and dehydrating device for extracting the leaf seed oil from the natural oil tea fruits according to claim 1, wherein the decoloring and dehydrating device comprises: the device is characterized in that a bottom plate of the equipment box (2) is fixedly provided with an infrared temperature sensor (41) with a detection head facing downwards and just facing to a lower hopper (44), and a detection signal output end of the infrared temperature sensor (41) is connected with a detection signal access end of a PLC (programmable logic controller) 63 through an electric signal.