CN210586330U - Kitchen waste wet-heat hydrolysis unit and treatment equipment - Google Patents
Kitchen waste wet-heat hydrolysis unit and treatment equipment Download PDFInfo
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- CN210586330U CN210586330U CN201921237067.1U CN201921237067U CN210586330U CN 210586330 U CN210586330 U CN 210586330U CN 201921237067 U CN201921237067 U CN 201921237067U CN 210586330 U CN210586330 U CN 210586330U
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Abstract
The application relates to a kitchen waste wet-heat hydrolysis unit and treatment equipment, and belongs to the technical field of kitchen waste treatment. The wet-heat hydrolysis unit comprises two groups of wet-heat hydrolysis tanks, and each wet-heat hydrolysis tank is provided with a first waste steam inlet, a waste steam outlet and a steam inlet. The waste steam outlet of each group of the wet and hot hydrolysis tanks can be communicated with and disconnected from the first waste steam inlet of the other group of the wet and hot hydrolysis tanks. The treatment equipment comprises a steam supply unit, a hydrolysate storage unit and the wet heat hydrolysis unit. Can effectively recycle waste steam, the waste steam does not need to be treated independently, and the equipment cost and the treatment cost are effectively reduced.
Description
Technical Field
The application relates to the technical field of kitchen waste treatment, in particular to a kitchen waste wet-heat hydrolysis unit and treatment equipment.
Background
The wet-heat hydrolysis technology of the kitchen waste is a pretreatment method for changing the physical and chemical properties of the kitchen waste through the action of high temperature and high pressure so as to improve the availability of the kitchen waste. At present, after the wet-heat hydrolysis treatment of the kitchen waste, the discharged waste steam is absorbed by a waste steam condensation discharge device and is usually directly discharged into cold water to absorb the heat of the waste steam. Need set up special exhaust steam condensation discharging equipment to heat recovery efficiency to exhaust steam is lower, and the cold water that absorbs exhaust steam generally can not cyclic utilization, need incorporate the system and merge the processing, still will increase the processing material total amount, increases subsequent processing system's equipment capacity, thereby increases the construction cost.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a kitchen garbage wet heat hydrolysis unit and treatment facility, can effectively recycle exhaust steam, and exhaust steam need not the independent processing, has reduced equipment cost and treatment cost effectively.
The embodiment of the application is realized as follows:
first aspect, this application embodiment provides a kitchen garbage damp and hot hydrolysis unit, including two sets of damp and hot hydrolysis tanks, first waste steam entry, waste steam export and be used for letting in the steam import of steam have all been seted up to every damp and hot hydrolysis tank, and the waste steam export of every damp and hot hydrolysis tank of group can communicate and break off with the first waste steam entry of another group damp and hot hydrolysis tank.
Among the above-mentioned technical scheme, set up two sets of damp and hot hydrolysis tanks and cooperate, because the exhaust steam outlet homoenergetic of every group damp and hot hydrolysis tank can communicate with the first exhaust steam entry of another group damp and hot hydrolysis tank, carry out kitchen garbage when handling two sets of damp and hot hydrolysis tanks and move in turn, wherein the damp and hot hydrolysis in a set of damp and hot hydrolysis tank accomplishes the back, can let in the exhaust steam who produces and preheat the material in another group damp and hot hydrolysis tank, it heats to let in steam to another group damp and hot hydrolysis tank again after accomplishing to preheat. The two groups of tank bodies are alternately operated, so that continuous feeding and continuous treatment can be better realized; the waste steam that the damp-heat hydrolysis produced is used for preheating another group of damp-heat hydrolysis tank, can effectively recycle waste steam, also need not to be equipped with waste steam recovery plant in addition, also can not increase because of condensation treatment and handle total amount of material and follow-up treatment facility capacity simultaneously, has reduced equipment cost and treatment cost effectively.
In some optional embodiments, steam inlet and first waste steam entry all set up between the bottom and the middle part of damp and hot hydrolysis tank, and steam inlet and first waste steam entry equal to the distance of damp and hot hydrolysis tank bottom, are provided with first steam in every damp and hot hydrolysis tank and diffuse the pipe, and steam inlet and first waste steam entry all diffuse the pipe intercommunication with first steam, and first steam diffuses the pipe and offers the first steam hole of diffusing with the inside intercommunication of damp and hot hydrolysis tank.
Among the above-mentioned technical scheme, steam inlet and first exhaust steam entry equal to the distance of damp and hot hydrolysis tank bottom for steam inlet and first exhaust steam entry can be through same steam diffuse pipe to ventilating in the damp and hot hydrolysis tank, reduce equipment cost. Set up the steam and diffuse the pipe and ventilate to the damp and hot hydrolysis tank in, steam or exhaust steam have better stirring effect when letting in the damp and hot hydrolysis tank in, need not to set up mechanical stirring equipment again, have avoided mechanical stirring equipment trouble problem and the bearing seal steam leakage problem that installation mechanical stirring equipment leads to. Set up steam inlet and first exhaust steam entry between the bottom and the middle part of damp and hot hydrolysis tank for first steam diffuses to be located between the bottom and the middle part of damp and hot hydrolysis tank after the pipe installation, and first steam diffuses the pipe and also stirs when ventilating in to damp and hot hydrolysis tank more fully.
In some optional embodiments, each wet-heat hydrolysis tank is further provided with a second waste steam inlet, the second waste steam inlet is arranged between the middle part and the top part of the wet-heat hydrolysis tank, and the waste steam outlet of each group of wet-heat hydrolysis tanks can be communicated and disconnected with the second waste steam inlet of another group of wet-heat hydrolysis tanks.
Among the above-mentioned technical scheme, when letting in waste steam in to the damp and hot hydrolysis jar, can let in waste steam to another group damp and hot hydrolysis jar through first waste steam entry and second waste steam entry simultaneously to improve waste steam's ventilation efficiency. Because the second waste steam entry sets up between the middle part and the top of damp and hot hydrolysis tank, and first waste steam entry sets up between the bottom and the middle part of damp and hot hydrolysis tank, adopts the cooperation of first waste steam entry and second waste steam entry to ventilate from lower liquid level department and higher liquid level department in the damp and hot hydrolysis tank respectively, still makes to the stirring of whole hydrolysate system in the damp and hot hydrolysis tank and preheat more evenly. Meanwhile, when the waste steam in one group of the wet-heat hydrolysis tanks is discharged to the other group of the wet-heat hydrolysis tanks, the air pressure in the wet-heat hydrolysis tank for discharging the waste steam is gradually reduced along with the discharge of the waste steam, the pressure of the waste steam is higher in the early stage of exhaust, the stirring effect is stronger, and the pressure of the waste steam is lower in the later stage of exhaust, and the stirring effect is smaller. The first waste steam inlet corresponds to a lower liquid level, and in the early stage of exhaust, the first waste steam inlet is adopted to discharge waste steam into the other group of wet-heat hydrolysis tanks, so that sufficient stirring and preheating are realized; the second waste steam entry corresponds higher liquid level, and in the exhaust later stage, adopt the second waste steam entry to discharge into another group's wet thermal hydrolysis jar to make the hydrolysate of high liquid level by more abundant and even stirring and preheat. In some optional embodiments, each of the wet-hot hydrolysis tanks is provided with a second steam diffusing pipe, the second waste steam inlet is communicated with the second steam diffusing pipe, and the second steam diffusing pipe is provided with a second steam diffusing hole communicated with the inside of the wet-hot hydrolysis tank.
Among the above-mentioned technical scheme, set up second steam and diffuse pipe and second waste steam entry intercommunication for when ventilating in the entry to the damp and hot hydrolysis tank through second waste steam, can also carry out better stirring to the hydrolysate system. The cooperation of the first steam of lower liquid level diffuses the pipe and the second steam of higher liquid level diffuses the pipe for it is also more even to the stirring of whole hydrolysate system in the damp and hot hydrolysis tank, preheats also more fully.
In some optional embodiments, the kitchen waste wet and hot hydrolysis unit further comprises a control unit, each wet and hot hydrolysis tank is provided with a feeding pipeline, the feeding pipeline is provided with a feeding valve and a flow meter, the feeding valve is electrically connected with the control unit, and the flow meter is in communication connection with the control unit.
Among the above-mentioned technical scheme, feed line at the damp and hot hydrolysis tank sets up feed valve and flowmeter, detects the feeding volume through the flowmeter for can realize the automatic shutdown feeding through control feed valve closure when the feeding volume reaches the default, feeding control is convenient, accurate.
In some alternative embodiments, each hydrothermal hydrolysis tank is provided with a feed line provided with a concentration analyzer.
Among the above-mentioned technical scheme, set up concentration analyzer at the feed line, be convenient for carry out real-time detection to feeding concentration data, be convenient for adjust processing technology parameter according to the feeding concentration that real-time detection obtained, be favorable to improving damp and hot hydrolysis efficiency, reduce the processing energy consumption.
In some optional embodiments, each wet-hot hydrolysis tank is provided with an oxidant feeding port.
According to the technical scheme, the oxidant adding port is formed, so that the oxidant can be conveniently added when the feeding concentration is detected to be high, the hydrolysis efficiency is improved, the hydrolysis effect is enhanced, and the rapid and sufficient implementation of the wet-heat hydrolysis reaction is ensured.
In some optional embodiments, the kitchen waste wet and hot hydrolysis unit further comprises a control unit, the steam inlet is provided with a steam inlet valve, each wet and hot hydrolysis tank is provided with a temperature sensor for detecting the internal temperature of the wet and hot hydrolysis tank, the steam inlet valve is electrically connected with the control unit, and the temperature sensor is in communication connection with the control unit.
Among the above-mentioned technical scheme, set up temperature sensor and detect the inside temperature of damp and hot hydrolysis jar for steam can stop supplying through control steam inlet valve closes when the interior heating temperature of damp and hot hydrolysis jar reaches the default, heating temperature control is convenient, accurate.
In some optional embodiments, the kitchen waste wet and hot hydrolysis unit further comprises a control unit, each wet and hot hydrolysis tank is provided with a discharge pipeline, the discharge pipeline is provided with a discharge valve, a feeding end of a first waste steam inlet is provided with a first waste steam inlet valve, each wet and hot hydrolysis tank is provided with a pressure sensor for detecting the steam pressure in the wet and hot hydrolysis tank, the discharge valve and the first waste steam inlet valve are both electrically connected with the control unit, and the pressure sensor is in communication connection with the control unit.
When a second waste steam inlet is further formed in each damp-heat hydrolysis tank, a second waste steam inlet valve is arranged at the feed end of the second waste steam inlet, and the second waste steam inlet valve is also electrically connected with the control unit.
Among the above-mentioned technical scheme, the ejection of compact pipeline at damp and hot hydrolysis tank sets up the bleeder valve, is convenient for discharge starting to arrange the material after exhaust steam discharges the completion promptly, arranges that material control is convenient, accurate. Set up pressure sensor and detect the inside pressure of wet thermal hydrolysis jar for discharge waste steam can close into waste steam valve and stop waste steam's emission after certain pressure in the wet thermal hydrolysis jar, waste steam discharges convenient, accurate, remains certain pressure in the wet thermal hydrolysis jar behind the waste steam of being convenient for, can realize quick, thorough material discharge, avoids material deposit, blocks up.
In a second aspect, an embodiment of the application provides a kitchen waste treatment device, which comprises a steam supply unit, a hydrolysate storage unit and at least one kitchen waste wet and hot hydrolysis unit provided by the embodiment of the first aspect, wherein a steam inlet of each wet and hot hydrolysis tank can be communicated and disconnected with the steam supply unit, a hydrolysate outlet is formed in each wet and hot hydrolysis tank, and a hydrolysate outlet of each wet and hot hydrolysis tank can be communicated and disconnected with the hydrolysate storage unit.
According to the technical scheme, the kitchen waste wet-heat hydrolysis unit is adopted for performing wet-heat hydrolysis treatment on the kitchen waste, and two groups of wet-heat hydrolysis tanks are alternately operated, so that continuous feeding and continuous treatment can be better realized. The waste steam that the damp-heat hydrolysis produced is used for preheating another group of damp-heat hydrolysis tank, can effectively recycle waste steam, also need not to be equipped with waste steam recovery plant in addition, also can not increase because of condensation treatment and handle total amount of material and follow-up treatment facility capacity simultaneously, has reduced equipment cost and treatment cost effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a kitchen waste treatment device provided in an embodiment of the present application;
fig. 2 is a schematic partial structure diagram of a kitchen waste treatment device provided in an embodiment of the present application;
FIG. 3 is a schematic view of a wet and hot hydrolysis tank according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second viewing angle of a wet-hot hydrolysis tank provided in an embodiment of the present application.
Icon: 10-kitchen waste treatment equipment; 100-a kitchen waste wet-heat hydrolysis unit; 101-a wet heat hydrolysis tank; 110-a feed line; 111-a feed port; 112-a feed valve; 113-a flow meter; 114-concentration analyzer; 120-an air intake line; 121-a steam inlet; 122-steam inlet valve; 130-waste steam line; 131-an exhaust steam outlet; 132-a first exhaust steam inlet; 133-first inlet exhaust steam valve; 134-a second exhaust steam inlet; 135-second inlet exhaust steam valve; 140-a discharge line; 141-hydrolysate outlet; 142-a discharge valve; 150-a first steam diffusing pipe; 151-first half-loop; 152-second half collar; 160-a second steam diffusing pipe; 171-a liquid level meter; 172-oxidant feeding port; 173 — a first temperature sensor; 174-a second temperature sensor; 175-a third temperature sensor; 176-in situ thermometer; 177-a pressure sensor; 178-in situ pressure gauge; 200-a steam supply unit; 300-hydrolysate storage unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is noted that the terms "first", "second", and the like are used merely for distinguishing between descriptions and are not intended to indicate or imply relative importance.
The terms "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship that is based on the orientation or positional relationship shown in the drawings, or as otherwise customary for use of the article of manufacture in this application, and are used merely to facilitate the description and simplify the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting of the application.
Further, the term "parallel" or the like does not require absolute parallelism between the components, but may be slightly inclined.
In the description of the present application, it is also noted that the terms "disposed," "mounted," "connected," and the like are to be construed broadly unless otherwise specifically stated and limited. For example, the connection can be fixed, detachable or integrated; they may be connected directly or indirectly through an intermediate medium, or they may be connected internally between two members. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Examples
Referring to fig. 1, an embodiment of the present application provides a kitchen waste treatment apparatus 10, which includes a steam supply unit 200, a hydrolysate storage unit 300, and at least one kitchen waste wet-heat hydrolysis unit 100.
The steam supply unit 200 is used for supplying steam to the kitchen waste wet and hot hydrolysis unit 100, and the hydrolysate storage unit 300 is used for storing hydrolysate discharged after the kitchen waste wet and hot hydrolysis unit 100 completes wet and hot hydrolysis. In the embodiment of the present application, the steam supply unit 200 and the hydrolysate storage unit 300 are both optionally in communication with one or more kitchen waste wet heat hydrolysis units 100.
Referring to fig. 1 and 2, in the embodiment of the present application, each kitchen waste hydrothermal hydrolysis unit 100 includes two sets of hydrothermal hydrolysis tanks 101. It is understood that each set of the thermal hydrolysis tank 101 may be composed of one or more thermal hydrolysis tanks 101, that is, the cooperation between two sets of the thermal hydrolysis tanks 101 may be selected as "one-to-one", "one-to-many", "many-to-one" or the like according to different sizes, different reactions and other requirements of the thermal hydrolysis tanks 101, and the following embodiments exemplify that one thermal hydrolysis tank 101 is provided for each set of the thermal hydrolysis tanks 101. Each wet and hot hydrolysis tank 101 is provided with a feed inlet 111, a steam inlet 121, an exhaust steam outlet 131, a first exhaust steam inlet 132 and a hydrolysate outlet 141.
The feeding port 111 is communicated with a feeding pipeline 110 for conveying the kitchen waste material to be treated into the wet heat hydrolysis tank 101. The feed line 110 is provided with a feed valve 112 for controlling the feed line 110 to be opened and closed.
The steam inlet 121 is communicated with an air inlet pipeline 120, and the air inlet pipeline 120 is provided with a steam inlet valve 122 for controlling the on-off of the air inlet pipeline 120. The air intake line 120 is communicated with the steam supply unit 200 so that the steam inlet 121 can be communicated with and disconnected from the steam supply unit 200 for supplying steam into the fed wet heat hydrolysis tank 101 for heating and pressurizing for performing the wet heat hydrolysis reaction.
The hydrolysate outlet 141 is communicated with a discharge pipeline 140, and the discharge pipeline 140 is provided with a discharge valve 142 for controlling the on-off of the discharge pipeline 140. The discharge pipeline 140 is communicated with the hydrolysate storage unit 300, so that the hydrolysate outlet 141 can be communicated and disconnected with the hydrolysate storage unit 300, and the hydrolysate after the hydrothermal hydrolysis is finished is discharged into the hydrolysate storage unit 300.
The exhaust steam outlet 131 is connected to the exhaust steam pipeline 130 for discharging the exhaust steam generated during the wet-heat hydrolysis out of the wet-heat hydrolysis tank 101 after the wet-heat hydrolysis is completed. One end of the waste steam line 130 communicates with the waste steam outlet 131 of one hydrothermal hydrolysis tank 101, and the other end of the waste steam line 130 communicates with the first waste steam inlet 132 of the other hydrothermal hydrolysis tank 101. The waste steam pipeline 130 is provided with a first waste steam inlet valve 133 at the feeding end of the first waste steam inlet 132, and is used for controlling the connection and disconnection between the waste steam outlet 131 of one of the wet and hot hydrolysis tanks 101 and the first waste steam inlet 132 of the other wet and hot hydrolysis tank 101, so that the waste steam outlet 131 of one of the wet and hot hydrolysis tanks 101 can be connected and disconnected with the first waste steam inlet 132 of the other wet and hot hydrolysis tank 101.
The kitchen waste wet-heat hydrolysis unit 100 provided by the embodiment of the application is provided with two sets of wet-heat hydrolysis tanks 101 for matching, when kitchen waste is treated, the two sets of wet-heat hydrolysis tanks 101 can alternately operate, and the alternate operation of the two sets of wet-heat hydrolysis tanks 101 means that one wet-heat hydrolysis tank 101 performs wet-heat hydrolysis reaction, the other wet-heat hydrolysis tank 101 does not perform wet-heat hydrolysis reaction, and the other wet-heat hydrolysis tank 101 performs preparation before wet-heat hydrolysis reaction such as discharging and feeding. The two groups of tank bodies are alternately operated, so that continuous feeding and continuous treatment can be better realized. Because the two groups of hydrothermal hydrolysis tanks 101 are communicated by the waste steam pipeline 130, after the hydrothermal hydrolysis in one hydrothermal hydrolysis tank 101 is completed, the generated waste steam can be introduced into the other hydrothermal hydrolysis tank 101 to preheat the material, and after the preheating is completed, the steam is introduced into the other hydrothermal hydrolysis tank 101 to heat and then carry out the hydrothermal hydrolysis reaction with heat preservation and pressure maintaining. The waste steam that the damp-heat hydrolysis produced is used for preheating another damp-heat hydrolysis tank 101, can effectively recycle waste steam, also need not to be equipped with waste steam recovery plant in addition, also can not increase because of condensation treatment and handle total amount of material and follow-up treatment facility capacity simultaneously, has reduced equipment cost and treatment cost effectively.
Exemplarily, the feed inlet 111 is arranged at the top of the hydrothermal hydrolysis tank 101, so that the kitchen waste material to be treated can be conveyed to the interior of the hydrothermal hydrolysis tank 101, and the blockage of the feed inlet 111 can be effectively avoided.
In some optional embodiments, the feeding line 110 is provided with a flow meter 113, and the feeding amount is detected by the flow meter 113, so that the feeding valve 112 is controlled to be closed to stop feeding according to the detected feeding amount, and the feeding control is accurate. It is understood that, for the purpose of automatic control, the kitchen waste wet-heat hydrolysis unit 100 may further be provided with a control unit, such as a PLC control cabinet. The feeding valve 112 is electrically connected with the control unit, the flow meter 113 is in communication connection with the control unit, when the flow meter 113 detects that the feeding amount reaches a preset value, the flow meter 113 sends a detected signal to the control unit, and the control unit controls the feeding valve 112 to be closed after receiving the signal sent by the flow meter 113 to achieve automatic feeding stopping, so that feeding control is more convenient and accurate.
Optionally, each hydrothermal hydrolysis tank 101 is further provided with a liquid level meter 171, and the liquid level meter 171 is disposed, for example, at a position lower than the feed port 111. The liquid level meter 171 can be used for calibrating the flow meter 113 in the equipment debugging stage, and the accuracy and reliability of the flow detection result of the flow meter 113 can be effectively ensured. The setting of level gauge 171 can also be used for arranging the material control of expecting the stage, with level gauge 171 and kitchen garbage wet-heat hydrolysis unit 100's the control unit communication connection, when flowmeter 113 detected the liquid level of arranging the material and reached the default, level gauge 171 sent the signal that detects for control unit, control unit received behind the signal that level gauge 171 sent control bleeder valve 142 and closed the realization autostop row material, arrange that material control is convenient, accurate.
Furthermore, the feeding pipeline 110 may further be provided with a concentration analyzer 114, which facilitates real-time detection of feeding concentration data, facilitates adjustment of processing parameters according to the feeding concentration obtained by real-time detection, and is beneficial to improvement of the wet-heat hydrolysis efficiency and reduction of processing energy consumption. Under the condition that the kitchen waste wet and hot hydrolysis unit 100 is provided with a control unit, the concentration analyzer 114 can be in communication connection with the control unit optionally, and the control unit performs intelligent adjustment on process parameters according to online analysis data and in combination with a preset parameter set, such as adjustment on feeding amount, wet and hot hydrolysis time, hydrolysis temperature and the like.
In the embodiment where the feeding pipeline 110 is provided with the concentration analyzer 114, each hydrothermal hydrolysis tank 101 may optionally further be provided with an oxidant feeding port 172, so that an oxidant is conveniently added when the feeding concentration is detected to be high, the hydrolysis efficiency is improved, the hydrolysis effect is enhanced, and the hydrothermal hydrolysis reaction is ensured to be performed quickly and sufficiently.
In the embodiment of this application, accomplish and add the material back in to hydrothermal hydrolysis tank 101, add the pressure by heating through direct letting in steam to hydrothermal hydrolysis tank 101, heating efficiency is high, and power when steam simultaneously lets in has certain stirring effect to the material.
Referring to fig. 2, 3 and 4, optionally, the steam inlet 121 is disposed at a position where the liquid level in the hydrothermal hydrolysis tank 101 is low, for example, between the bottom and the middle of the hydrothermal hydrolysis tank 101, so as to sufficiently heat and stir the material in the hydrothermal hydrolysis tank 101. Optionally, in this embodiment, the air inlet line 120 is provided with a first check valve, which is disposed on the side of the steam inlet valve 122 close to the wet thermal hydrolysis tank 101, for example, and can effectively protect the steam inlet valve 122. Since the material is usually the slurry whose main component is liquid during the wet-heat hydrolysis reaction in the wet-heat hydrolysis tank 101, and the wet-heat hydrolysis reaction is usually a heat preservation and pressure maintaining reaction, the first check valve is configured to only allow the material to pass from the side of the first check valve far away from the wet-heat hydrolysis tank 101 to the side of the first check valve close to the wet-heat hydrolysis tank 101, so as to avoid the slurry from flowing backward into the air inlet pipeline 120 during the steam passing into the wet-heat hydrolysis tank 101 and during the wet-heat hydrolysis reaction.
Furthermore, a first steam diffusing pipe 150 is arranged in each hydrothermal hydrolysis tank 101, a first steam diffusing hole communicated with the interior of the hydrothermal hydrolysis tank 101 is formed in the first steam diffusing pipe 150, and the steam inlet 121 is communicated with the first steam diffusing pipe 150. Set up the steam and diffuse the pipe and ventilate in jar 101 is hydrolysised to damp and hot, the distribution of steam in jar 101 is hydrolysised to damp and hot is more even for steam has better stirring effect when letting in jar 101 is hydrolysised to damp and hot, need not to set up mechanical stirring equipment again, has avoided mechanical stirring equipment trouble problem and the bearing seal steam leakage problem that installation mechanical stirring equipment leads to.
The first steam diffusing pipe 150 can optionally extend in a plane parallel to the radial direction of the wet-heat hydrolysis tank 101, and the first steam diffusing hole is arranged at the bottom of the first steam diffusing pipe 150 or between the bottom and the middle of the first steam diffusing pipe 150, so that the opening of the first steam diffusing hole faces downwards, the first steam diffusing hole can be washed downwards when the wet-heat hydrolysis tank 101 is ventilated through the first steam diffusing hole, and the first steam diffusing hole can be effectively prevented from being blocked by materials in the wet-heat hydrolysis tank 101.
Illustratively, the first steam discharging pipe 150 is, for example, configured as a ring-shaped pipe body including a first half pipe 151 and a second half pipe 152 which are communicated with each other, the first half pipe 151 is connected to the wet and hot hydrolysis tank 101 by a flange and communicated with the steam inlet 121, and the first half pipe 151 and the second half pipe 152 are also connected by a flange, so that the first steam discharging pipe 150 can be easily disassembled.
In the case where the wet heat hydrolysis tank 101 is provided with the first steam discharging pipe 150, optionally, the first exhaust steam inlet 132 is also provided between the bottom and the middle of the wet heat hydrolysis tank 101, and the steam inlet 121 and the first exhaust steam inlet 132 are equally distant from the bottom of the wet heat hydrolysis tank 101. The first steam diffusing pipe 150 is communicated with the steam inlet 121 while the first waste steam inlet 132 is also communicated with the first steam diffusing pipe 150, and in the case where the first steam diffusing pipe 150 is configured such that the first half loop pipe 151 is engaged with the second half loop pipe 152, the first waste steam inlet 132 may be communicated with the first half loop pipe 151 through the same flange, for example. The first waste steam inlet 132 is used for introducing air into the wet-hot hydrolysis tank 101 through the first steam diffusing pipe 150, so that the waste steam introduced into the wet-hot hydrolysis tank 101 has a good stirring effect; meanwhile, the steam inlet 121 and the first waste steam inlet 132 are used for ventilating the wet heat hydrolysis tank 101 through the same steam diffusing pipe, so that the equipment cost is reduced.
Optionally, in an embodiment where the first waste steam inlet 132 is disposed between the bottom and the middle of the thermal wet hydrolysis tank 101, the waste steam pipeline 130 is provided with a second check valve, for example, disposed on a side of the first waste steam inlet valve 133 close to the thermal wet hydrolysis tank 101, which can effectively protect the first waste steam inlet valve 133. Since the material is usually slurry with liquid as the main component during the wet-heat hydrolysis reaction in the wet-heat hydrolysis tank 101, and the wet-heat hydrolysis reaction is usually a heat preservation and pressure maintaining reaction, the second check valve is configured to only allow the material to pass from the side of the second check valve far away from the wet-heat hydrolysis tank 101 to the side of the second check valve close to the wet-heat hydrolysis tank 101, so as to prevent the first waste steam inlet 132 from flowing back into the waste steam pipeline 130 during the waste steam passing through the wet-heat hydrolysis tank 101 and during the wet-heat hydrolysis reaction.
In order to enable the steam introduced into the wet and hot hydrolysis tank 101 to sufficiently preheat the material in the wet and hot hydrolysis tank 101, the wet and hot hydrolysis tank 101 is not limited to the first waste steam inlet 132 for introducing waste steam, and for example, an inlet for introducing waste steam may be provided at other liquid level heights of the wet and hot hydrolysis tank 101.
Illustratively, each of the thermal hydrolysis canisters 101 is further provided with a second waste steam inlet 134, the second waste steam inlet 134 is similarly communicated through the waste steam pipeline 130, one end of the waste steam pipeline 130 is communicated with the waste steam outlet 131 of one of the thermal hydrolysis canisters 101, and the other end of the waste steam pipeline 130 is communicated with the second waste steam inlet 134 of another thermal hydrolysis canister 101. The waste steam pipeline 130 is provided with a second waste steam inlet valve 135 at the feeding end of the second waste steam inlet 134, and is used for controlling the connection and disconnection between the waste steam outlet 131 of one of the wet and hot hydrolysis tanks 101 and the second waste steam inlet 134 of the other wet and hot hydrolysis tank 101, so that the waste steam outlet 131 of one of the wet and hot hydrolysis tanks 101 can be connected and disconnected with the second waste steam inlet 134 of the other wet and hot hydrolysis tank 101.
In the case where the first waste steam inlet 132 is provided between the middle and bottom of the hydrothermal hydrolysis tank 101, the second waste steam inlet 134 is provided between the middle and top of the hydrothermal hydrolysis tank 101. Above-mentioned arrangement, can let in waste steam simultaneously through first waste steam inlet 132 and second waste steam inlet 134 to in another hydrothermal hydrolysis tank 101, and correspond lower liquid level department and higher liquid level department respectively to improve waste steam's ventilation efficiency and make the gas of letting in distribute more evenly.
Likewise, in the embodiment where the second waste steam inlet 134 is disposed between the middle and the top of the thermal wet hydrolysis tank 101, the waste steam pipeline 130 is further provided with a third check valve, for example, disposed on the side of the second waste steam inlet valve 135 close to the thermal wet hydrolysis tank 101, which can effectively protect the second waste steam inlet valve 135. The third check valve is configured to allow the material to pass from a side of the third check valve away from the wet thermal hydrolysis tank 101 to a side of the third check valve close to the wet thermal hydrolysis tank 101, thereby preventing the slurry from flowing back into the waste steam line 130 during the waste steam passing through the second waste steam inlet 134 into the wet thermal hydrolysis tank 101 and during the wet thermal hydrolysis reaction.
Under the condition that the wet and hot hydrolysis tank 101 is provided with the second waste steam inlet 134, a second steam diffusing pipe 160 is optionally further arranged in each wet and hot hydrolysis tank 101, a second steam diffusing hole communicated with the inside of the wet and hot hydrolysis tank 101 is formed in the second steam diffusing pipe 160, and the second waste steam inlet 134 is communicated with the second steam diffusing pipe 160. The second steam diffusion pipe 160 has the same structure and connection with the wet heat hydrolysis tank 101, for example, as the first steam diffusion pipe 150.
The wet-heat hydrolysis reaction is a heat-preserving and pressure-maintaining process, and the temperature of the wet-heat hydrolysis reaction is controlled, so that the wet-heat hydrolysis reaction can be ensured to reach higher hydrolysis efficiency and hydrolysis degree.
In some optional embodiments, each thermal-wet hydrolysis tank 101 is provided with a temperature sensor for detecting the temperature inside the thermal-wet hydrolysis tank 101, and the kitchen waste thermal-wet hydrolysis unit 100 is provided with a control unit in communication with the temperature sensor, where the steam inlet valve 122 on the air inlet pipeline 120 is electrically connected with the control unit. When the temperature sensor detects that the temperature inside the wet-hot hydrolysis tank 101 reaches a preset value, the temperature sensor sends a detected signal to the control unit, the control unit receives the signal sent by the temperature sensor and then controls the steam inlet valve 122 to close to automatically stop steam inlet, and the temperature of the wet-hot hydrolysis reaction is conveniently and accurately controlled.
The temperature sensor is optionally provided in a plurality of positions, and the plurality of temperature sensors are positioned at different liquid level heights of the wet-heat hydrolysis tank 101. The temperature in the hydrothermal hydrolysis tank 101 is determined by the temperature measured by the plurality of temperature sensors at different heights, or the target sensor is calibrated by other temperature sensors, so that the temperature control of the hydrothermal hydrolysis reaction is more accurate. Illustratively, the temperature sensors include a first temperature sensor 173, a second temperature sensor 174, and a third temperature sensor 175, the first temperature sensor 173 being disposed at the bottom of the hydrothermal hydrolysis tank 101, the second temperature sensor 174 being disposed at the middle of the hydrothermal hydrolysis tank 101, and the third temperature sensor 175 being disposed at the top of the hydrothermal hydrolysis tank 101.
Optionally, each of the thermal wet hydrolysis tanks 101 is further provided with an on-site thermometer 176 for detecting the temperature inside the thermal wet hydrolysis tank 101, the on-site thermometer 176 being disposed, for example, in the middle of the thermal wet hydrolysis tank 101, the on-site thermometer 176 being disposed to facilitate the staff to observe the temperature in the thermal wet hydrolysis tank 101 on site.
Since the wet-heat hydrolysis is performed under the condition of maintaining the temperature and pressure, a large amount of waste steam exists in the wet-heat hydrolysis tank 101 after the wet-heat hydrolysis is completed, so that a certain steam pressure exists in the wet-heat hydrolysis tank 101. When the waste steam is discharged from the waste steam outlet 131 to the hydrothermal hydrolysis tank 101, and when the waste steam is introduced into the hydrothermal hydrolysis tank 101 from the first waste steam inlet 132 and the second waste steam inlet 134, certain pressure is provided, and further optionally, the waste steam pipeline 130 is communicated with the hydrothermal hydrolysis tank 101 through a flexible joint, so that the vibration of the waste steam in the discharging and introducing processes of the hydrothermal hydrolysis tank 101 and the waste steam pipeline 130 is reduced, and the purpose of reducing noise is achieved.
As the exhaust steam is gradually discharged into another wet heat hydrolysis tank 101, the pressure in the wet heat hydrolysis tank 101 discharging the exhaust steam is gradually reduced.
In some alternative embodiments, each thermal wet hydrolysis tank 101 is provided with a pressure sensor 177 for detecting the steam pressure in the thermal wet hydrolysis tank 101, and the pressure sensor 177 is disposed at the top of the thermal wet hydrolysis tank 101, for example, so that the steam pressure in the thermal wet hydrolysis tank 101 can be conveniently detected even when the liquid level in the thermal wet hydrolysis tank 101 is high. The kitchen waste wet-heat hydrolysis unit 100 is provided with a control unit which is in communication connection with the pressure sensor 177, and the control unit is electrically connected with the discharge valve 142 on the discharge pipeline 140 and the first waste steam inlet valve 133 on the waste steam pipeline 130. When the pressure sensor 177 detects that the steam pressure in the hydrothermal hydrolysis tank 101 is reduced to a preset value, the pressure sensor 177 sends a detected signal to the control unit, and the control unit receives the signal sent by the pressure sensor 177 and then controls the first waste steam inlet valve 133 to be closed and controls the discharge valve 142 to be opened so as to stop introducing waste steam from the first waste steam inlet valve 133 to the other hydrothermal hydrolysis tank 101 and start discharging the waste steam from the hydrolysate outlet 141. The waste steam in the wet-heat hydrolysis tank 101 which discharges the waste steam is convenient to be discharged to the greatest extent, certain pressure is kept in the wet-heat hydrolysis tank 101, rapid and thorough material discharge can be realized, and material deposition and blockage are avoided.
In the above embodiment where the pressure sensor 177 is provided, in the case where the first waste steam inlet 132 and the second waste steam inlet 134 are provided at the same time, the second waste steam inlet 135 is also optionally electrically connected to the control unit. When the pressure sensor 177 detects that the steam pressure in the hydrothermal hydrolysis tank 101 is reduced to a first preset value, the pressure sensor 177 sends a detected signal to the control unit, the control unit receives the signal sent by the pressure sensor 177 and then controls the first waste steam inlet valve 133 to be closed and controls the second waste steam inlet valve 135 to be opened, at the moment, waste steam is introduced into another hydrothermal hydrolysis tank 101 through the second waste steam inlet 134, when the pressure sensor 177 detects that the steam pressure in the hydrothermal hydrolysis tank 101 is reduced to a second preset value, the pressure sensor 177 sends the detected signal to the control unit, and the control unit receives the signal sent by the pressure sensor 177 and then controls the second waste steam inlet valve 135 to be closed and controls the discharge valve 142 to be opened. When the waste steam in one of the wet and hot hydrolysis tanks 101 is discharged to the other wet and hot hydrolysis tank 101, the pressure in the wet and hot hydrolysis tank 101 discharging the waste steam is gradually reduced along with the discharge of the waste steam, so that the pressure of the waste steam is higher in the early stage of the exhaust, the stirring effect is stronger, and the pressure of the waste steam is lower in the later stage of the exhaust, and the stirring effect is smaller. The first waste steam inlet 132 corresponds to a lower liquid level, and in the early stage of exhaust, the first waste steam inlet 132 is adopted to discharge waste steam into the other wet-hot hydrolysis tank 101, so that sufficient stirring and preheating are realized; the second waste steam inlet 134 corresponds to a higher liquid level, and in the exhaust later stage, the second waste steam inlet 134 is adopted to discharge into another hydrothermal hydrolysis tank 101, so that the hydrolysate at the high liquid level is more fully and uniformly stirred and preheated.
Optionally, each hydrothermal hydrolysis tank 101 is further provided with an on-site pressure gauge 178 for detecting the steam pressure inside the hydrothermal hydrolysis tank 101, and the on-site pressure gauge 178 is arranged at the top of the hydrothermal hydrolysis tank 101, for example, and the pressure gauge is arranged to facilitate the staff to observe the steam pressure in the hydrothermal hydrolysis tank 101 on site. In the embodiment of the present application, each of the hydrothermal hydrolysis tanks 101 may be provided with a safety valve and an odor outlet at the top, for example, as required.
The working principle of the kitchen waste treatment equipment 10 and the kitchen waste wet-heat hydrolysis unit 100 provided by the embodiment of the application is as follows:
when the kitchen waste is subjected to the damp-heat hydrolysis treatment, the two groups of damp-heat hydrolysis tanks 101 in each kitchen waste damp-heat hydrolysis unit 100 are subjected to damp-heat hydrolysis reaction alternately, so that continuous feeding and continuous treatment are realized. The first set of wet and hot hydrolysis pots 101 for the initial reaction is directly heated and preheated by introducing steam through the steam supply unit 200, and then in the wet and hot hydrolysis reaction, the wet and hot hydrolysis reaction is performed in one set of wet and hot hydrolysis pots 101, and the other set of wet and hot hydrolysis pots 101 is prepared before the wet and hot hydrolysis reaction such as discharging and feeding. When one group of the wet-heat hydrolysis tanks 101 finishes the wet-heat hydrolysis treatment, the waste steam generated by the wet-heat hydrolysis treatment is introduced into the other group of the wet-heat hydrolysis tanks 101 through the waste steam pipeline 130 to preheat the materials, and after the preheating is finished, the steam is introduced into the other group of the wet-heat hydrolysis tanks 101 to heat and then carry out the wet-heat hydrolysis reaction with heat preservation and pressure maintaining. The waste steam is effectively recycled, waste steam recovery equipment does not need to be additionally arranged, the total amount of the treated materials and the capacity of subsequent treatment equipment cannot be increased due to condensation treatment, and the equipment cost and the treatment cost are effectively reduced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a kitchen garbage damp and hot hydrolysis unit, its characterized in that includes two sets of damp and hot hydrolysis tanks, every the damp and hot hydrolysis tank has all been seted up first exhaust steam entry, exhaust steam export and is used for letting in the steam import of steam, every group the damp and hot hydrolysis tank exhaust steam export can with another group the damp and hot hydrolysis tank first exhaust steam entry intercommunication and disconnection.
2. The kitchen waste wet and hot hydrolysis unit as claimed in claim 1, wherein the steam inlet and the first waste steam inlet are both disposed between the bottom and the middle part of the wet and hot hydrolysis tank, the distance from the steam inlet to the bottom of the wet and hot hydrolysis tank is equal to that from the first waste steam inlet to the bottom of the wet and hot hydrolysis tank, each wet and hot hydrolysis tank is internally provided with a first steam release pipe, the steam inlet and the first waste steam inlet are both communicated with the first steam release pipe, and the first steam release pipe is provided with a first steam release hole communicated with the inside of the wet and hot hydrolysis tank.
3. The kitchen waste wet and hot hydrolysis unit as claimed in claim 2, wherein each wet and hot hydrolysis tank is further provided with a second waste steam inlet, the second waste steam inlet is arranged between the middle part and the top part of the wet and hot hydrolysis tank, and the waste steam outlet of each wet and hot hydrolysis tank can be communicated and disconnected with the second waste steam inlet of another wet and hot hydrolysis tank.
4. The kitchen waste wet and hot hydrolysis unit as claimed in claim 3, wherein each wet and hot hydrolysis tank is internally provided with a second steam diffusing pipe, the second waste steam inlet is communicated with the second steam diffusing pipe, and the second steam diffusing pipe is provided with a second steam diffusing hole communicated with the inside of the wet and hot hydrolysis tank.
5. The kitchen waste wet and hot hydrolysis unit according to any one of claims 1 to 4, further comprising a control unit, wherein each wet and hot hydrolysis tank is provided with a feeding pipeline, the feeding pipeline is provided with a feeding valve and a flow meter, the feeding valve is electrically connected with the control unit, and the flow meter is in communication connection with the control unit.
6. The kitchen waste wet and hot hydrolysis unit as claimed in any one of claims 1 to 4, wherein each wet and hot hydrolysis tank is provided with a feeding pipeline, and the feeding pipeline is provided with a concentration analyzer.
7. The kitchen waste wet and hot hydrolysis unit as claimed in claim 6, wherein each wet and hot hydrolysis tank is provided with an oxidant feeding port.
8. The kitchen waste wet and hot hydrolysis unit as claimed in any one of claims 1 to 4, wherein the kitchen waste wet and hot hydrolysis unit further comprises a control unit, the steam inlet is provided with a steam inlet valve, each wet and hot hydrolysis tank is provided with a temperature sensor for detecting the temperature inside the wet and hot hydrolysis tank, the steam inlet valve is electrically connected with the control unit, and the temperature sensor is in communication connection with the control unit.
9. The kitchen waste wet and hot hydrolysis unit according to any one of claims 1 to 4, wherein the kitchen waste wet and hot hydrolysis unit further comprises a control unit, each wet and hot hydrolysis tank is provided with a discharge pipeline, the discharge pipeline is provided with a discharge valve, a first waste steam inlet valve is arranged at a feed end of the first waste steam inlet, each wet and hot hydrolysis tank is provided with a pressure sensor for detecting steam pressure in the wet and hot hydrolysis tank, the discharge valve and the first waste steam inlet valve are both electrically connected with the control unit, and the pressure sensor is in communication connection with the control unit;
when every damp and hot hydrolysis tank has still seted up the second exhaust steam entry, the feed end of second exhaust steam entry is provided with the second and advances the exhaust steam valve, the second advance the exhaust steam valve also with the control unit electric connection.
10. The kitchen waste treatment equipment is characterized by comprising a steam supply unit, a hydrolysate storage unit and the kitchen waste wet and hot hydrolysis unit as claimed in any one of claims 1 to 9, wherein the number of the kitchen waste wet and hot hydrolysis units is at least one, the steam inlet of each wet and hot hydrolysis tank can be communicated and disconnected with the steam supply unit, the hydrolysate outlet of each wet and hot hydrolysis tank is opened, and the hydrolysate outlet of each wet and hot hydrolysis tank can be communicated and disconnected with the hydrolysate storage unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921237067.1U CN210586330U (en) | 2019-08-01 | 2019-08-01 | Kitchen waste wet-heat hydrolysis unit and treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921237067.1U CN210586330U (en) | 2019-08-01 | 2019-08-01 | Kitchen waste wet-heat hydrolysis unit and treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252782A (en) * | 2019-08-01 | 2019-09-20 | 青海洁神环境能源产业有限公司 | The damp and hot hydrolysis unit of kitchen garbage, processing equipment and processing method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252782A (en) * | 2019-08-01 | 2019-09-20 | 青海洁神环境能源产业有限公司 | The damp and hot hydrolysis unit of kitchen garbage, processing equipment and processing method |
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Address after: 810007 No. 39-13, 15, building 1, No. 39, Jinqiao Road, Chengdong economic and Technological Development Zone, Xining City, Qinghai Province Patentee after: Qinghai Jieshen Environmental Technology Co.,Ltd. Address before: No.39-13, No.15, No.1 building, No.39 Jinqiao Road, Chengdong economic and Technological Development Zone, Xining City, Qinghai Province 810000 Patentee before: QINGHAI JIESHEN ENVIRONMENT ENERGY INDUSTRY Co.,Ltd. |