Material opening mechanical material door, evapo-separated machine and material layer height control method

Abstract

The invention belongs to the technical field of evapo-separated machines. The material opening mechanical material door comprises a discharging opening, a discharging adjusting mechanism is arranged on the discharging opening, and the discharging opening mechanical material door comprises a rotating shaft assembly; the discharging valve is used for closing or opening the discharging opening; the baffle assembly is arranged on the rotating shaft assembly, and the rotating shaft assembly rotates to drive the baffle assembly to rotate synchronously; the adjusting assembly comprises a first adjusting sleeve, the rotating shaft assembly is sleeved with the first adjusting sleeve, and the first adjusting sleeve is connected with the rotating valve plate; the second adjusting sleeve is connected with the rotating shaft assembly; the relative positions of the first adjusting sleeve and the second adjusting sleeve are changed through rotation and locked, angle adjustment between the rotary valve plate and the baffle assembly is achieved, and online adjustment of the height of a material layer is achieved. The invention further discloses an evapo-separated machine which comprises the material opening mechanical material door. The invention further discloses a material layer height control method.

Description

Technical Field

[0001] The invention belongs to the technical field of a material inlet mechanical door, and in particular relates to a material inlet mechanical door and a silo height control method. Background Art

[0002] New soybean protein foods are booming in my country's food market, and the quality of desolventization in the extraction oil process is not only related to the solvent consumption index but also crucial to the quality of protein in the meal. The desolventizer is a key equipment that plays the role of desolventizing wet meal and passivating anti-nutritional factors in the meal in the extraction oil plant. The desolventizer is a vertical stirring equipment that plays the role of desolventizing wet meal and passivating anti-nutritional factors in the meal in the extraction oil plant. Solvent loss mainly occurs in the desolventizer, accounting for 90%. The steam consumption of the desolventizer accounts for 70% of the total pressing consumption. Therefore, the design of the desolventization section is crucial.

[0003] The desolventizing section is desolventizing by steam stripping, which mainly removes the solvent in the adsorbed state and the solvent in the oil-soluble state inside the meal. Direct steam superheating is used to remove the water in the saturated steam and then spray it into the cylinder through the small holes on the upper panel of the direct steam layer to contact with the wet meal in countercurrent. Under the push and flip of the stirring wings, the wet meal is evenly contacted with the steam, which also prevents the steam from short-circuiting and bridging the material layer. The high material layer has a good desolventizing effect. The wetting solvent evaporates in the upper section, and the internal solvent in the adsorbed state has enough time to transfer in the middle section of the material layer, providing good conditions for the steam stripping in the lower section. Since the steam and the wet meal are in dynamic contact, the wet meal provides a large amount of heat transfer and mass transfer surface, which prevents short circuit and bridging, and ensures a reasonable time and distance to achieve steam-meal mass transfer and heat transfer. The material layer control in the desolventizing section is particularly critical. In the prior art, the steam-desolventizing machine uses a rotary valve to control the material layer at each layer. The rotary valve has a high manufacturing cost and a risk of material jamming. Once the material is jammed, the labor cost is increased and the production efficiency is reduced. In the prior art, the mechanical material door cannot adjust the material layer height without stopping the machine, and needs to stop the machine and enter the cylinder for adjustment. Summary of the invention

[0004] The first object of the present invention is to provide a mechanical material door for a material inlet, so as to solve the technical problem that the degassing machine needs to be stopped to adjust the material layer height, which is inconvenient to operate.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: the material inlet mechanical material door includes a material discharge port, which is characterized in that a material discharge adjustment mechanism is provided on the material discharge port, including: Axis assembly; A discharge valve is used to close or open the discharge port, and the discharge valve comprises: A valve body, arranged on the feed opening; A rotary valve plate, which is arranged on the rotating shaft assembly and can rotate relative to the rotating shaft assembly; A baffle assembly is arranged on the rotating shaft assembly, and the rotation of the rotating shaft assembly drives the baffle assembly to rotate synchronously; Adjustment components, including: A first adjusting sleeve, sleeved on the rotating shaft assembly, wherein the first adjusting sleeve is connected to the rotating valve plate; A second adjustment sleeve connected to the rotating shaft assembly; By rotating and changing the relative positions of the first adjusting sleeve and the second adjusting sleeve and locking them, the angle between the rotary valve plate and the baffle assembly is adjusted, thereby achieving online adjustment of the material layer height.

[0006] During normal production, if the residence time is not enough and the material layer needs to be increased, without stopping the machine, turn the second adjusting sleeve counterclockwise and the first adjusting sleeve clockwise to reduce the angle between the baffle and the rotary valve plate; after the angle is adjusted, fix it to achieve online adjustment of the material layer height; conversely, increase the angle between the baffle and the rotary valve plate to reduce the material layer height.

[0007] In order to solve the technical problem of how to realize the adjustment component, the present invention adopts the following technical solution: a first adjustment flange is provided at the outer end of the first adjustment sleeve, and a first adjustment hole is provided on the first adjustment flange; A second adjusting flange is disposed at the inner end of the second adjusting sleeve, and a second adjusting hole is disposed on the second adjusting flange; The angle adjustment between the rotary valve plate and the baffle assembly is achieved by changing the position of the adjusting locking member in the first adjusting hole and the second adjusting hole.

[0008] In order to solve the technical problem that the second adjustment sleeve is inconvenient to rotate, the present invention adopts the following technical solution: the second adjustment sleeve is located outside the first adjustment sleeve, a swing arm is arranged on the second adjustment sleeve, and a counterweight is arranged at the end of the swing arm. The second adjustment sleeve is rotated by the swing arm to facilitate the adjustment of the angle between the baffle and the rotary valve plate.

[0009] In order to solve the technical problem of how to limit the stroke of the rotary valve plate, the present invention adopts the following technical solution: the material inlet mechanical door also includes a limit assembly for limiting the stroke of the rotary valve plate.

[0010] In order to solve the technical problem of how to implement the limit assembly, the present invention adopts the following technical solution, and the limit assembly includes: A rotary valve plate travel limit block, arranged on the rotary valve plate; A first stroke limit stopper, arranged on the valve body, for controlling the maximum rotation angle of the rotary valve plate, at which the feed opening is fully opened; The second stroke limit stopper is arranged on the valve body and is used to control the minimum rotation angle of the rotary valve plate, at which time the rotary valve plate closes the feed opening. The rotary valve plate stroke limiter on the rotary valve plate and the first material layer stroke limiter and the second material layer stroke limiter of the valve body control the opening range of the rotary valve plate to ensure that the material door is opened to the maximum and closed tightly.

[0011] In order to solve the technical problem of how to keep the rotary valve plate closing the discharge port, the present invention adopts the following technical solution: the discharge port mechanical door also includes a locking assembly for locking the rotary valve plate after closing the discharge port.

[0012] In order to solve the technical problem of how to implement the locking assembly, the present invention adopts the following technical solution, and the locking assembly includes: A limiting orifice plate, wherein a first locking hole is arranged on the limiting orifice plate; A second locking hole is provided on the swing arm. The locking member is arranged in the first locking hole and the second locking hole, so as to realize the locking of the rotary valve plate after closing the discharge port.

[0013] In order to solve the technical problem of facilitating viewing the opening status of the material gate on site, the present invention adopts the following technical solution: the material inlet mechanical material gate also includes an indicating component for indicating the rotation angle of the rotary valve plate.

[0014] In order to solve the technical problem of how to implement the indication component, the present invention adopts the following technical solution, and the indication component includes: Angle indicator plate; The swing needle is arranged on the first adjusting sleeve. When the rotary valve plate moves, the swing needle corresponds to the angle on the angle indicator plate, so that the material gate opening condition can be known on site.

[0015] In order to solve the technical problem of how to realize the unloading valve, the present invention adopts the following technical solution: the valve body of the unloading valve includes a main side plate, and right-angled triangular side plates are respectively arranged at both ends of the main side plate, and the hypotenuse of the right-angled triangular side plate is an inwardly concave arc; a long strip plate is arranged between the outer ends of the two right-angled triangular side plates; A plurality of sector plates are arranged on the inner wall of the rotary valve plate, and the sector plates are arranged on the rotating shaft via corresponding shaft sleeves.

[0016] In order to solve the technical problem of how to realize the baffle assembly, the present invention adopts the following technical solution, the baffle assembly includes a baffle, the lower end of the baffle is arc-shaped, and the two ends of the baffle are respectively provided with a first connecting arm and a second connecting arm; A shaft sleeve is provided at the end of the first connecting arm, and the first connecting arm is connected to the rotating shaft via the corresponding shaft sleeve; A shaft sleeve is arranged at the end of the second connecting arm, and the second connecting arm is sleeved on the rotating shaft via the corresponding shaft sleeve.

[0017] The second object of the present invention is to provide a degassing machine comprising the mechanical material door as described in any one of the above items.

[0018] In order to solve the technical problem of how to install the mechanical material door of the material inlet on the degassing machine, the present invention adopts the following technical solution: the rotating shaft assembly includes a rotating shaft, and one end of the rotating shaft is arranged on the shell of the degassing machine via a packing seat assembly; The other end of the rotating shaft is arranged at the bottom of the feed opening of the tower tray of the degassing machine via a supporting assembly; The second adjustment sleeve is located outside the shell of the degassing machine; the unloading valve and the baffle are located inside the shell of the degassing machine; The first adjusting sleeve is arranged between the packing seat assembly and the rotating shaft.

[0019] In order to solve the technical problem of installing a limit orifice plate and an angle indicator disk, the present invention adopts the following technical solution: a limit orifice plate and an angle indicator disk are arranged on the packing seat assembly.

[0020] The third object of the present invention is to provide a material layer height control method, which is characterized by being implemented by using any of the above-mentioned material inlet mechanical material gates, and comprising: Rotating the first adjustment sleeve and the second adjustment sleeve to change the relative position of the first adjustment sleeve and the second adjustment sleeve; After the angle between the rotary valve plate and the baffle is adjusted to a preset angle, the first adjustment sleeve and the second adjustment sleeve are locked by using an adjustment locking member to achieve online adjustment of the material layer height.

[0021] The fourth object of the present invention is to provide a material layer height control method, which is implemented by using any of the above-mentioned material inlet mechanical material doors; the degassing machine includes a material level control mechanism, a rotary valve, and a variable frequency motor, and the variable frequency motor is connected to the rotary valve; The material layer height control method comprises: According to the output t set by the degassing machine, the normal range of the corresponding rotary valve speed m is set to (x*t, y*t); When the rotary valve speed m is monitored to be out of the normal range (x*t, y*t); If the rotary valve speed m exceeds the normal range within the time T2, it is judged as a temporary production fluctuation, and the rotary valve continues to adjust the speed to cope with the material layer fluctuation; If the time that the rotary valve speed m exceeds the normal range is greater than time T2, it can be determined that the current output has changed and the material stays in the desolventizing layer for too long or too short; Adjust the angle of the mechanical material gate of the material inlet, rotate the first adjustment sleeve and the second adjustment sleeve, and change the relative position of the first adjustment sleeve and the second adjustment sleeve; after the angle between the rotary valve plate and the baffle is adjusted to a preset angle, use the adjustment locking member to lock the first adjustment sleeve and the second adjustment sleeve to achieve online adjustment of the material layer height of the corresponding desolvation layer; According to the new output t', reset the normal range of the rotary valve speed (x'*t', y'*t').

[0022] The material gate of the present invention can be used together with a rotary valve and a material level control mechanism. In the desolventizing section of the desolventizing machine, the mechanical material gate is used to control the opening of the upper material discharge port by the height of the lower material layer, so that several desolventizing layers can be integrated to realize automatic control of the material layer of the entire desolventizing section. The present invention can realize online adjustment of the material layer height, thereby reducing the cost of the desolventizing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional mechanical material door of the material inlet of the present invention. Figure 1 ; Figure 2 It is a three-dimensional mechanical material door of the material inlet of the present invention. Figure 2 ; Figure 3 It is a three-dimensional mechanical material door of the material inlet of the present invention. Figure 3 ; Figure 4 It is a side view of the material inlet mechanical door of the present invention; Figure 5 It is a cross-sectional view of the material inlet mechanical door of the present invention; Figure 6 It is a structural schematic diagram of the first adjustment sleeve of the material inlet mechanical material door adjustment assembly of the present invention; Figure 7 It is a structural schematic diagram of the second adjustment sleeve of the material inlet mechanical material door adjustment assembly of the present invention; Figure 8 It is a structural schematic diagram of the degassing machine of the present invention; Fig. 9 It is a three-dimensional diagram of the material level control mechanism of the degassing machine of the present invention; Fig.10 is a stereoscopic view of a rotary valve of a degassing machine of the present invention; Reference numerals: 10 Mechanical material door for material inlet; 100 feeding adjustment mechanism; 110 unloading valve; 111 valve body; 1111 main side plate; 1112 right-angled triangle side plate; 1113 long strip plate; 112 rotary valve plate; 113 fan-shaped connecting plate; 1130 weight-reducing hole; 114 first shaft sleeve; 115 second shaft sleeve; 120 baffle assembly; 121 baffle; 1211 connecting portion; 1212 arc portion; 1213 reinforcing plate; 122 first connecting arm; 123 second connecting arm; 124 second shaft sleeve; 125 third shaft sleeve; 126 fourth shaft sleeve; 127 positioning sleeve; 130 rotating shaft assembly; 131 rotating shaft; 132 supporting assembly; 133 packing seat assembly; 134 key one; 135 key two; 136 key three; 137 locking sleeve; 138 latch; 141 swing arm; 1410 second locking hole; 142 counterweight; 143 counterweight rod; 150 adjustment assembly; 151 first adjustment sleeve; 1510 keyway two; 152 second adjustment sleeve; 1520 keyway four; 153 first adjustment flange; 1530 first adjustment hole; 154 second adjustment flange; 1540 second adjustment hole; 155 adjustment locking member; 1551 adjustment bolt; 1552 adjustment nut; 160 limit assembly; 161 rotary valve plate travel limit block; 162 first material layer travel limit stop block; 163 second material layer travel limit stop block; 170 locking assembly; 171 limiting hole plate; 1710 first locking hole; 172 locking member; 173 locking fixing member; 180 indicating assembly; 181 angle indicating plate; 182 swing needle; 20 degassing machine; 210 cylinder; 220 tray; 230 material level control mechanism; 231 float; 232 angle transmitter; 240 rotary valve; 241 rotor; 242 variable frequency motor; 250 main shaft; 260 stirring wing; 270 desolventizing section. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Example 1 Nowadays, oil mills require lower and lower steam and solvent consumption. Steam consumption in degassing machines accounts for more than 50% of the entire prepreg production line, and solvent loss mainly occurs in degassing machines, accounting for 90%. Therefore, it is very important to be able to flexibly control the material layer without stopping the machine to change the desolventizing time.

[0026] In order to reduce steam consumption, the gas phase temperature of the degassing machine is now controlled lower and lower. Under the condition of ensuring the same residual solubility of meal, increasing the material layer to increase the residence time is the only way. If you need to increase production or reduce steam consumption during production, you need to optimize the automatic mechanical material door.

[0027] Traditionally, the material layer height can only be adjusted at the layer with a material level control mechanism (such as an angle transmitter), and the range is too limited. If the material layer height is to be adjusted significantly, it is necessary to stop the machine and adjust the angle of the automatic mechanical material door in the barrel.

[0028] Because the temperature of the degassing machine is above 100℃ when it is working, it normally takes several hours to enter and operate it when it is shut down.

[0029] like Figure 1-7 As shown, the material inlet mechanical door 100 includes a material discharge port, and a material discharge adjustment mechanism is arranged on the material discharge port, including a material discharge valve 110, a baffle 120, and a rotating shaft assembly 130.

[0030] The rotating shaft assembly 130 includes a rotating shaft 131. A key groove 1 is processed at one end of the rotating shaft 131, and a key 134 is installed in the key groove 1. A key groove 3 is processed at the other end of the rotating shaft 131, and a key 3 136 is installed in the key groove 2.

[0031] The material discharge valve 110 is used to close or open the material discharge port. The material discharge valve 110 includes a valve body 111 and a rotary valve plate 112 .

[0032] The valve body 111 is installed at the bottom of the discharge port. Specifically, the valve body 111 includes a main side panel 1111, two right-angled triangular side panels 1112, and a long strip panel 1113. The main side panel 1111 is preferably a rectangular panel. The hypotenuse of the right-angled triangular side panel 1112 is an inwardly concave arc. The two right-angled triangular side panels 1112 are respectively located at the two ends of the main side panel 1111. The right-angled triangular side panel 1112 is arranged parallel to the main side panel 1111. The long strip panel 1113 is installed at the outer ends of the two right-angled triangular side panels 1112. The long strip panel 1113 is arranged parallel to the main side panel 1111. The main side panel 1111 and the right-angled triangular side panel 1112 can be formed by bending, or can be connected by welding. The right-angled triangular side panel 1112 and the long strip panel 1113 can be connected by welding.

[0033] The rotary valve plate 112 is arranged on the rotating shaft assembly 130 and can rotate relative to the rotating shaft assembly 130. Specifically, the rotary valve plate 112 is fan-shaped. A plurality of fan-shaped connecting plates 113 are radially arranged on the inner side wall of the rotary valve plate 112. The number of the fan-shaped connecting plates 113 is preferably two, which are evenly distributed on the inner circumferential surface of the rotary valve plate 112. A first shaft sleeve 114 is installed at the end of one fan-shaped connecting plate 113, and a second shaft sleeve 115 is installed at the end of the other fan-shaped connecting plate 113. The first shaft sleeve 114 is coaxially arranged with the corresponding rotary valve plate 112. The first shaft sleeve 114 is sleeved on the rotating shaft 131.

[0034] In one embodiment, in order to reduce the rotational resistance of the rotary valve plate, a weight-reducing hole 1130 is processed on the fan-shaped connecting plate 113 .

[0035] The baffle assembly 120 is mounted on the rotating shaft 131 , and the rotation of the rotating shaft 131 drives the baffle assembly 120 to rotate synchronously.

[0036] In one embodiment, the baffle assembly 120 includes a baffle 121. The baffle 121 includes a connecting portion 1211 and an arc portion 1212. A reinforcing plate 1213 is welded on the inner side wall of the arc portion 1212 to prevent the arc portion from curling.

[0037] One end of the baffle 121 is connected to the first connecting arm 122. Specifically, connecting holes are processed from top to bottom at both ends of the connecting portion 1211 of the baffle 121. Connecting holes are processed from top to bottom on the first connecting arm 122. The left end connecting portion 1211 corresponds to the connecting hole on the first connecting arm 121 and is locked by bolts and nuts. The third sleeve 124 is installed at the end of the first connecting arm 122, and the third sleeve 124 is connected to the rotating shaft 131 via key 134.

[0038] The other end of the baffle 121 is connected to the second connecting arm 123. Specifically, the second connecting arm 123 is processed with connecting holes from top to bottom. The right end connecting portion 1211 corresponds to the connecting hole on the second connecting arm 123 and is locked by bolts and nuts. The fourth sleeve 125 is installed at the end of the second connecting arm, and the fourth sleeve 125 is sleeved on the rotating shaft 131.

[0039] The adjustment assembly 150 includes a first adjustment sleeve 151, a second adjustment sleeve 152, and an adjustment locking member 155. The first adjustment sleeve 151 is sleeved on the rotating shaft 130, and the first adjustment sleeve 151 is connected to the rotating valve plate 112. The second adjustment sleeve 152 is connected to the rotating shaft 131 via the key 3 136 and is located at the outer end of the rotating shaft 131. By rotating and changing the relative positions of the first adjustment sleeve and the second adjustment sleeve and locking them, the angle between the rotating valve plate and the baffle is adjusted, and the material layer height is adjusted online.

[0040] In one embodiment, a first adjustment flange 153 is disposed at the outer end of the first adjustment sleeve 151, and a first adjustment hole 1530 is machined on the first adjustment flange 153. The first adjustment holes 1530 are evenly distributed in the circumference. A second keyway 1510 is machined at the inner end of the first adjustment sleeve 151. A second key 135 is installed in the second keyway 1510. The second shaft sleeve 115 is connected to the first adjustment sleeve 151 via the second key 135.

[0041] The second adjusting flange 154 is installed at the inner end of the second adjusting sleeve 152, and the second adjusting flange 154 is processed with second adjusting holes 1540. The second adjusting holes 1540 are evenly distributed in the circumference. The second adjusting sleeve 152 is processed with key grooves 1520. The key grooves 1520 correspond to the key grooves 153 at the end of the rotating shaft 132 and are installed with key 153, so that the second adjusting sleeve is fixed on the rotating shaft 131.

[0042] The angle adjustment between the rotary valve plate and the baffle plate is achieved by changing the position of the adjusting locking member 155 in the first adjusting hole 1530 and the second adjusting hole 1540 .

[0043] In one embodiment, the second adjustment sleeve 152 is located outside the first adjustment sleeve 131 , a swing arm 141 is provided on the second adjustment sleeve 131 , a counterweight rod 143 is installed on the swing arm 141 , and a counterweight piece 142 is installed at the end of the counterweight rod 143 .

[0044] In one embodiment, the material inlet mechanical material door further includes a limit assembly 160 for limiting the stroke of the rotary valve plate 112. Specifically, the limit assembly 160 includes a rotary valve plate stroke limit block 161, a first stroke limit block 162, and a second stroke limit block 163.

[0045] The rotary valve plate travel limit block 161 is installed on the rotary valve plate 112. Specifically, the rotary valve plate travel limit block 161 is installed on the inner side of the arc edge of the rotary valve plate 112. The rotary valve plate travel limit block 161 is radially arranged.

[0046] The first stroke limit stopper 162 is arranged on the valve body 111, and is used to control the maximum rotation angle of the rotary valve plate, at which time the feed opening is fully opened. Specifically, the first stroke limit stopper 162 is installed at the inner end of the long strip 1113, and the first stroke limit stopper 162 is arranged horizontally. When the rotary valve plate rotates, the rotary valve plate stroke limiter 161 rotates, and when the rotary valve plate stroke limiter 161 touches the first stroke limiter 162, the feed opening is fully opened.

[0047] The second stroke limit stopper 163 is arranged on the valve body 111, and is used to control the minimum rotation angle of the rotary valve plate, at which time the rotary valve plate closes the feed opening. Specifically, the second stroke limit stopper 163 is installed at the inner lower right angle portion of the main side plate 1111, and the second stroke limit stopper 163 is arranged horizontally. When the rotary valve plate rotates, the rotary valve plate stroke limiter 161 rotates, and when the rotary valve plate stroke limiter 161 touches the second stroke limiter 163, the feed opening is completely closed.

[0048] In one embodiment, the material inlet mechanical material door further includes a locking assembly 170, which is used to lock the rotary valve plate after closing the material outlet. Specifically, the locking assembly 170 includes a limiting orifice plate 171 and a locking member 172. A first locking hole 1710 is provided on the limiting orifice plate 171; and a second locking hole 1410 is provided on the swing arm 141. The first locking hole 1710 and the second locking hole 1410 are correspondingly inserted into the locking member 172, and locked by the locking fixing member 173, so as to realize the locking after the rotary valve plate closes the material outlet.

[0049] When the machine is just started, if you need to close the material door first, so that the incoming wet meal has enough residence time, the operation is as follows: Rotate the swing arm 182 to insert the locking member 172 in the counterweight block 142 into the first locking hole 1710 of the limiting orifice plate 171, so that the rotary valve plate 112 fits with the valve body 111 in a closed state; When the dwell time is reached, the locking member 172 is removed and then inserted into the counterweight 142 and locked with the locking member 173 .

[0050] In one embodiment, the material inlet mechanical material gate further includes an indication assembly 180 for indicating the rotation angle of the rotary valve plate. Specifically, the indication assembly 180 includes an angle indication disk 181 and a pendulum needle 182. The pendulum needle 182 is installed on the first adjustment sleeve 151, and specifically, the two are fixed by bolts and nuts.

[0051] Example 2 like Figure 8-10 As shown, the degassing machine 20 includes a desolvation section 270 located at the upper part of the degassing machine. The desolvation section 270 includes a barrel 210, in which a plurality of trays 220, a material level control mechanism 230, a rotary valve 240, a main shaft 250, a stirring wing 260, and any one of the material inlet mechanical gates 100 of Example 1 are installed.

[0052] The tray 220 is provided with a feed opening 221. The material level control mechanism 230 is installed above the uppermost tray 220. A main shaft 250 is arranged at the center of the cylinder 210, and a stirring wing 260 is installed on the main shaft 250 corresponding to each tray. A feed opening mechanical gate 100 is installed at the bottom of the feed opening 221 of the uppermost tray and the middle tray. A rotary valve 240 is installed on the feed opening 221 of the lowermost tray.

[0053] In one embodiment, one end of the rotating shaft 131 is arranged on the barrel 210 of the degassing machine via a packing seat assembly 133, and a first adjustment sleeve 151 is installed between the packing seat assembly 133 and the rotating shaft 131. The other end of the rotating shaft 131 is installed at the bottom of the discharge port of the tower plate 220 of the degassing machine via a support assembly 132. The rotating shaft 131 can rotate relative to the support assembly 132. A positioning sleeve 127 is sleeved on the rotating shaft 131 between the support assembly 132 and the first sleeve 114. A latch 138 is installed on the rotating shaft 131 inside the support assembly 132. A locking sleeve 137 is installed on the rotating shaft 131 outside the second adjustment sleeve 152 to prevent the second adjustment sleeve 152 from moving axially.

[0054] During the specific installation, the valve body 111 and the feed port 221 of the tower plate 220 are first welded, and then the packing seat assembly 133 and the cylinder 210 are welded according to the installation position, and the support assembly 132 and the bottom of the tower plate 220 are welded.

[0055] The second adjustment sleeve 152 is located outside the barrel 210 of the degassing machine. The unloading valve 110 and the baffle assembly 120 are located inside the barrel 210 of the degassing machine.

[0056] In one embodiment, the limiting orifice plate 171 is mounted on the packing seat assembly 133. The angle indicating plate 181 is mounted on the packing seat assembly 133.

[0057] Material layer control method in the desolventizing section of the degassing machine: The material enters from the top, and the main shaft 250 rotates to drive the stirring wings 260. The stirring wings 260 push the material from the discharge port of each layer to the next layer. When the material enters the desolventizing section, it directly reaches the direct steam layer (the layer where the rotary valve discharges the material). At the beginning, the rotary valve does not rotate, and the material slowly piles up to the upper layer. When it reaches the set height, it pushes the 1 arc baffle of the automatic mechanical material door 10 to close the 6 arc material door, and the material continues to pile up to the upper layer. The automatic mechanical material door 10 is closed and does not discharge the material. The material continues to pile up and reaches the height controlled by the material layer. Under the action of the E stirring wing, the material is discharged and pushes the float 231 of the material level control mechanism 230, so that the angle transmitter 232 receives a signal, which is fed back to the PLC control system, the frequency conversion motor 242 is turned on, the rotary valve 240 is started, and the material goes to the next layer. When the feed amount is large, the angle of the float 231 becomes larger, and the angle transmitter 232 transmits an electrical signal to the PLC, thereby increasing the frequency of the variable frequency motor 242, so that the rotor 241 of the rotary valve 240 rotates faster and the discharge amount increases. Conversely, when the angle transmitter 232 in the material level control mechanism 230 does not receive a signal, the variable frequency motor 242 reduces the frequency, and the discharge amount of the rotary valve 240 is reduced, so that the material layer height becomes higher as a whole. This control allows multiple desolventizing layers to be integrated and controlled as a large layer, reducing the number of rotary valves used, thereby ensuring that the material layer in the desolventizing section of the steam desolventizer is stable to meet production needs.

[0058] Example 3 like Figure 8 As shown, the material layer height control method is implemented by using the material inlet mechanical material door of any one of the embodiments 1, comprising: Rotate the first adjustment sleeve 151 and the second adjustment sleeve 152 to change the relative position of the first adjustment sleeve 151 and the second adjustment sleeve 152; After the angle between the rotary valve plate 112 and the baffle 121 is adjusted to a preset angle, the first adjustment sleeve and the second adjustment sleeve are locked by adjusting the locking member to achieve online adjustment of the material layer height. During normal operation, when the material reaches a height capable of pushing the baffle 121 under the push of the stirring wings 260, the shaft 131 rotates under the action of key 134, and then the rotary valve plate 112 is driven to rotate counterclockwise through key 2 135 to control the reduction of the discharge port 221; conversely, if the lower material layer is low, the counterweight block 142 drives the rotary valve plate 112 to rotate in the opposite direction to enlarge the discharge port 221, thereby achieving the goal of timely controlling the discharge amount of the upper layer according to the height of the lower material layer.

[0059] Adjust the material layer height online to meet the requirements. Making the angle smaller can increase the material layer height. Each adjustment of the hole distance can increase the material layer height by about 50mm, and the maximum can increase by 150mm. Each desolventizing layer can increase the desolventizing time by 0.5-1.5 minutes. In this way, the desolventizing time can be adjusted by about 6% for each layer. On the contrary, sometimes when the designed output is not achieved during production, the residence time is long, which will destroy the nutritional molecules of the meal and deepen the color of the meal. It is necessary to adjust the angle outside to increase it to reduce the material layer height and reduce the desolventizing time.

[0060] The rotary valve plate stroke limit block 161 on the rotary valve plate 112 and the first material layer stroke limit block 162 and the second material layer stroke limit block 163 of the valve body 111 control the opening range of the rotary valve plate 112 to ensure that the material door is opened to the maximum and closed tightly.

[0061] When the rotary valve plate 112 is in motion, the pendulum needle 182 corresponds to the angle on the angle indicator plate 181, so that the material gate opening condition can be easily seen on site.

[0062] During the normal production mode: the rotary valve 240 is adjusted according to the material layer height change signal of the angle transmitter 232, and is suitable for the feed amount fluctuation within a certain range to avoid the uneven desolventizing effect caused by excessive or insufficient feed amount in a short time. When the output needs to be adjusted, the angle of the mechanical material gate 100 is adjusted to increase or decrease the material layer height, and the rotary valve speed is adjusted accordingly with the output to ensure the material residence time.

[0063] In normal production, if the residence time is not enough and you need to add a layer of material, without stopping the machine, the operation is as follows: Remove the adjusting bolt 1551 and the adjusting nut 1552, turn the counterweight rod 143 counterclockwise and the pendulum needle 182 clockwise, and reduce the angle between the baffle 121 and the rotary valve plate 112 under the transmission of the key 3 136 and the key 2 135. After the angle is adjusted, the corresponding holes of the first adjusting flange 153 and the second adjusting flange 154 are aligned, and the material gate adjusting bolt 1551 is inserted and fixed with the material gate adjusting nut 1552, so as to realize the online adjustment of the material layer height.

[0064] The invention can adjust the material layer height of each desolventizing layer outside without stopping the machine, and use the angle transmitter and the variable frequency motor to control the material layer in linkage, so as to more easily meet the production needs and improve the production efficiency.

[0065] Example 4 The degassing machine is set to the automatic output adaptation mode, specifically: like Figure 8 As shown, the material layer height control method is implemented by using the material inlet mechanical material door of any one of the embodiments 1; the degassing machine includes a material level control mechanism, a rotary valve, and a variable frequency motor, and the variable frequency motor is connected to the rotary valve; The material layer height control method includes: According to the output t set by the degassing machine, the normal range of the corresponding rotary valve speed m is set to (x*t, y*t); When the feed rate fluctuates briefly, that is, within time T1, the height of the topmost layer of the desolventized material changes, and the material level control mechanism receives the material layer height change signal and sends it to the variable frequency motor, which controls the rotation speed of the rotary valve to adjust the material layer height; When the rotary valve speed m is monitored to be out of the normal range (x*t, y*t); If the rotary valve speed m exceeds the normal range within the time T2, it is judged as a temporary production fluctuation, and the rotary valve continues to adjust the speed to cope with the material layer fluctuation; If the time that the rotary valve speed m exceeds the normal range is greater than time T2, it can be determined that the current output has changed and the material stays in the desolventizing layer for too long or too short; Adjust the angle of the mechanical material gate of the material inlet, rotate the first adjustment sleeve and the second adjustment sleeve, and change the relative position of the first adjustment sleeve and the second adjustment sleeve; after the angle between the rotary valve plate and the baffle is adjusted to a preset angle, use the adjustment locking piece to lock the first adjustment sleeve and the second adjustment sleeve to achieve online adjustment of the material layer height of the corresponding desolvation layer; According to the new output t', reset the normal range of the rotary valve speed (x'*t', y'*t').

[0066] The present invention discloses a multifunctional automatic mechanical material door and material layer control method for an externally regulated degassing machine. The material level indication is coordinated with the externally regulated multifunctional automatic mechanical material door and rotary valve, and the new material layer control method for the desolvation section of the degassing machine controls several material layers in the desolvation section of the degassing machine as one large layer, thereby reducing the risk of material jamming when all rotary valves are used for material discharge, and also reducing the manufacturing cost of the degassing machine. At the same time, the automatic mechanical material door solves the problem that the traditional material door needs to be shut down, and then the angle between the material door and the material push baffle is adjusted inside the degassing machine to adjust the material layer height of the desolvation section. This invention can meet the requirements of online adjustment of the material layer height and ensure the continuity of production.

[0067] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention, and the contents not described in detail in this specification shall belong to the prior art known to professional and technical personnel in the field.

Claims

1. A mechanical material door, including a material discharge port, is characterized by: The material discharge port is provided with a material discharge adjustment mechanism, including: Axis assembly; A discharge valve is used to close or open the discharge port, and the discharge valve comprises: A valve body, arranged on the feed opening; A rotary valve plate, which is arranged on the rotating shaft assembly and can rotate relative to the rotating shaft assembly; A baffle assembly is arranged on the rotating shaft assembly, and the rotation of the rotating shaft assembly drives the baffle assembly to rotate synchronously; Adjustment components, including: A first adjusting sleeve, sleeved on the rotating shaft assembly, wherein the first adjusting sleeve is connected to the rotating valve plate; A second adjustment sleeve connected to the rotating shaft assembly; By rotating and changing the relative positions of the first adjusting sleeve and the second adjusting sleeve and locking them, the angle between the rotary valve plate and the baffle assembly is adjusted, thereby achieving online adjustment of the material layer height.

2. The mechanical material door of the material inlet according to claim 1 is characterized in that: A first adjusting flange is disposed at the outer end of the first adjusting sleeve, and a first adjusting hole is disposed on the first adjusting flange; A second adjusting flange is disposed at the inner end of the second adjusting sleeve, and a second adjusting hole is disposed on the second adjusting flange; The angle adjustment between the rotary valve plate and the baffle plate is achieved by changing the position of the adjusting locking member in the first adjusting hole and the second adjusting hole.

3. The mechanical material door of the material inlet according to claim 1 is characterized in that: The second adjustment sleeve is located outside the first adjustment sleeve, a swing arm is arranged on the second adjustment sleeve, and a counterweight is arranged at the end of the swing arm.

4. The mechanical material door of the material inlet according to claim 2 is characterized in that: The material inlet mechanical door also includes a limit assembly for limiting the stroke of the rotary valve plate.

5. The mechanical material door of the material inlet according to claim 4 is characterized in that: The limiting component comprises: A rotary valve plate travel limit block, arranged on the rotary valve plate; A first stroke limit stopper, arranged on the valve body, for controlling the maximum rotation angle of the rotary valve plate, at which the feed opening is fully opened; The second stroke limit stopper is arranged on the valve body and is used to control the minimum rotation angle of the rotary valve plate. At this time, the rotary valve plate closes the feed opening.

6. The mechanical material door of the material inlet according to claim 1 is characterized in that: The material inlet mechanical door also includes a locking assembly, which is used to lock the rotary valve plate after closing the material outlet.

7. The mechanical material door of the material inlet according to claim 6 is characterized in that: The locking assembly comprises: A limiting orifice plate, wherein a first locking hole is arranged on the limiting orifice plate; A second locking hole is provided on the swing arm. The locking member is arranged in the first locking hole and the second locking hole, so as to realize the locking of the rotary valve plate after closing the discharge port.

8. The mechanical material door of the material inlet according to claim 7 is characterized in that: The material inlet mechanical door also includes an indicating component for indicating the rotation angle of the rotary valve plate.

9. The mechanical material door of the material inlet according to claim 8 is characterized in that: The indication component comprises: Angle indicator plate; A swing needle is arranged on the first adjusting sleeve.

10. The mechanical material door of the material inlet according to claim 1 is characterized in that: The valve body of the discharge valve comprises a main side plate, and right-angled triangular side plates are respectively arranged at both ends of the main side plate, and the hypotenuse of the right-angled triangular side plate is an inwardly concave arc; a long strip plate is arranged between the outer ends of the two right-angled triangular side plates; A plurality of fan-shaped connecting plates are arranged on the inner wall of the rotary valve plate, and the fan-shaped connecting plates are arranged on the rotating shaft assembly via corresponding shaft sleeves.

11. The mechanical material door of the material inlet according to claim 1 is characterized in that: The lower end of the baffle is arc-shaped, and the two ends of the baffle are respectively provided with a first connecting arm and a second connecting arm; A second sleeve is disposed at the end of the first connecting arm, and the first connecting arm is connected to the rotating shaft assembly via the corresponding sleeve; A third sleeve is disposed at the end of the second connecting arm, and the second connecting arm is sleeved on the rotating shaft assembly via a corresponding sleeve.

12. A degassing machine comprising the mechanical material gate according to any one of claims 1 to 11.

13. The degassing machine according to claim 12, characterized in that: The rotating shaft assembly comprises a rotating shaft, one end of which is arranged on the shell of the degassing machine via a packing seat assembly; The other end of the rotating shaft is arranged at the bottom of the feed opening of the tower tray of the degassing machine via a supporting assembly; The second adjustment sleeve is located outside the shell of the degassing machine; the unloading valve and the baffle are located inside the shell of the degassing machine; The first adjusting sleeve is arranged between the packing seat assembly and the rotating shaft.

14. The degassing machine according to claim 13, characterized in that: A limiting orifice plate and an angle indicating plate are arranged on the packing seat assembly.

15. A material layer height control method, characterized in that: The method is realized by using the mechanical material gate of any one of claims 1 to 11, comprising: Rotating the first adjustment sleeve and the second adjustment sleeve to change the relative position of the first adjustment sleeve and the second adjustment sleeve; After the angle between the rotary valve plate and the baffle is adjusted to a preset angle, the first adjustment sleeve and the second adjustment sleeve are locked by using an adjustment locking member to achieve online adjustment of the material layer height.

16. A material layer height control method, characterized in that: The method is realized by using the material inlet mechanical door described in any one of claims 1 to 11; the degassing machine comprises a material level control mechanism, a rotary valve, and a variable frequency motor, and the variable frequency motor is connected to the rotary valve; The material layer height control method comprises: According to the output t set by the degassing machine, the normal range of the corresponding rotary valve speed m is set to (x*t, y*t); When the rotary valve speed m is monitored to be out of the normal range (x*t, y*t); If the rotary valve speed m exceeds the normal range within the time T1, it is judged as a temporary production fluctuation, and the rotary valve continues to adjust the speed to cope with the material layer fluctuation; If the time that the rotary valve speed m exceeds the normal range is greater than time T1, it can be determined that the current output has changed and the material stays in the desolventizing layer for too long or too short; Adjust the angle of the mechanical material gate of the material inlet, rotate the first adjustment sleeve and the second adjustment sleeve, and change the relative position of the first adjustment sleeve and the second adjustment sleeve; after the angle between the rotary valve plate and the baffle is adjusted to a preset angle, use the adjustment locking member to lock the first adjustment sleeve and the second adjustment sleeve to achieve online adjustment of the material layer height of the corresponding desolvation layer; According to the new output t', reset the normal range of the rotary valve speed (x'*t', y'*t').

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