Multistage shale shaker is used in furfural production
Technical Field
The utility model relates to a sieving mechanism technical field specifically is a multistage shale shaker is used in furfural production.
Background
Furfural (furfural) is an industrial chemical that can be extracted from various agricultural byproducts including corn cobs, oat and wheat bran, and sawdust. Furfural is an aromatic aldehyde, a colorless oily liquid with an almond taste, which rapidly turns yellow upon exposure to air.
The existing furfural preparation is generally extracted from corncobs, before the furfural preparation, the corncobs need to be crushed firstly, so as to conveniently carry out mixed acid treatment on the corncobs, the crushed corncobs need to be distinguished according to different sizes after being crushed so as to conveniently carry out deacidification treatment on the corncobs, the screening device is needed to distinguish the crushed corncobs, however, when the existing corncob screening device is used for screening the corncobs, the size of the screening interval is too large, so that the size difference of the screened corncobs is too large, the acid mixing effect of the ground corncobs is reduced, and the condition of card material still often can appear when sieving to the corncob in current screening plant, and because the problem of structure, the workman need disassemble a large amount of parts just can clear up the screen cloth, and its process is spent time big, uses to have a great deal of weak point.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage shale shaker is used in furfural production to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a multistage vibrating screen for furfural production comprises a fine screening device, a coarse screening device is arranged above the fine screening device, the coarse screening device comprises a shell a, a screening box is arranged in the shell a, a screening plate a is fixedly connected to the bottom end of the screening box, a movable plate is arranged at the upper end of the screening box, a motor is fixedly connected to the inner wall of the top end of the shell a through a fixed frame, the motor is fixedly connected with an eccentric wheel through a rotating shaft, a pull rod is connected to the eccentric wheel through a short shaft, the lower end of the pull rod is fixedly connected with the top end of the movable plate, the bottom end of the movable plate is fixedly connected with the outer wall of the top end of the screening box through a connecting rod, the fine screening device comprises a shell b, a screening plate b is arranged in the shell b, the bottom ends of the screening plate b are fixedly connected with two separation plates a, a material storage box is arranged below the screening plate b, a hydraulic cylinder is fixedly connected to the outer wall of the top end of the shell b, and a hydraulic rod is fixedly connected with the bottom end of the hydraulic cylinder, the hydraulic stem bottom fixedly connected with two-way cylinder, two-way cylinder both sides end fixedly connected with gas accuse telescopic link, gas accuse telescopic link other end fixed connection cleaning plate, cleaning plate bottom end fixedly connected with clearance brush.
As a further aspect of the present invention: casing a top outer wall fixedly connected with inlet pipe, the inlet pipe lower extreme passes the movable plate setting in screening case top, and the movable plate is equipped with the through-hole with the inlet pipe junction, and movable plate top outer wall both sides end fixedly connected with elastic telescopic rod, the elastic telescopic rod other end and casing a top inner wall fixed connection.
As a further aspect of the present invention: the inner walls of the two side ends of the shell a are provided with moving grooves at the joints with the moving plates, the moving plates can move in the moving grooves, the inner walls of the upper end and the lower end of the moving grooves are provided with buffer plates, the buffer plates are fixedly connected with springs a between the inner walls of the upper end and the lower end of the moving grooves, the two side ends of the inner wall of the bottom end of the shell a are fixedly provided with flow guide blocks, and the outer wall of the bottom end of the shell a is provided with a discharge hole a.
As a further aspect of the present invention: screening board b is equipped with screen cloth an, screen cloth b and screen cloth c respectively including fixed frame in the fixed frame, separates through division board b between screen cloth an, screen cloth b and the screen cloth c, and division board b quantity is two, and screen cloth a's mesh diameter is greater than screen cloth b's mesh diameter, and screen cloth b's mesh diameter is greater than screen cloth c's mesh diameter.
As a further aspect of the present invention: the utility model discloses a screening machine, including casing b, division board a, vibration generator, baffle b, feed inlet and guide plate, division board a top fixedly connected with vibration generator, vibration generator upper end and division board b bottom fixed connection, casing b top outer wall left side end is equipped with the feed inlet, and the feed inlet setting is in discharge gate a below, and the feed inlet below is equipped with the stock guide, stock guide and casing b top inner wall fixed connection, and casing b right side end outer wall is equipped with discharge gate b in the junction with screening board b.
As a further aspect of the present invention: and two sides of the outer wall of the bottom end of the fixing frame are fixedly connected with springs b, the lower ends of the springs b are fixedly connected with supporting blocks, and the supporting blocks are fixedly connected with the inner wall of the side end of the shell b.
As a further aspect of the present invention: the outer wall of the front end of the shell a is provided with a box door a in a hinge connection mode, the outer wall of the front end of the screening box is provided with a box door b in a hinge connection mode, and the outer wall of the front end of the shell b is provided with a box door c in a hinge connection mode.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in screening board an that sets up and screening board b can be to four partitions of screening according to the size of the corncob after smashing to can make its size phase difference of finished product corncob after the screening obtain reducing, make the corncob better in subsequent mixed acid processing effect.
2. The utility model discloses in, the two-way cylinder that sets up can make the gas accuse telescopic link drive clearance board clear up screening board b up end, the clearance brush of setting can clear up the screen cloth of card material, if appear when the card material is hardly cleared up the condition, the chamber door is opened to the accessible and manual cleaning is carried out, just so can make screening board an and screening board b need not dismantle a large amount of parts when the card material and can clear up it to can make the efficiency of corncob screening improve.
3. The utility model discloses well motor accessible eccentric wheel that sets up drives the movable plate with the pull rod and reciprocates, and movable plate accessible connecting rod drives the screening case and reciprocates to can make screening board an carry out coarse screening to the corncob, the buffer board that sets up in the shifting chute can reduce the vibration that the movable plate produced when the motion with spring an and elastic telescopic rod, thereby can prevent that the too much vibration of production from causing the damage to the screening part.
Drawings
Fig. 1 is an external structure schematic diagram of a multi-stage vibrating screen for producing furfural in the front view direction.
Fig. 2 is a schematic sectional structure view of a coarse screening device in a multistage vibrating screen for producing furfural in the front view direction.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic sectional structure view in the front view direction of a fine screening device in a multistage vibrating screen for producing furfural.
Fig. 5 is a schematic structural diagram of a sieving plate b in a top view direction in a multistage vibrating sieve for producing furfural.
In the figure: 1. a fine screening device; 1-1, a shell b; 1-2, a material guide plate; 1-3, screening plate b; 1-3-1, a fixed frame; 1-3-2, a screen mesh a; 1-3-3, and a screen b; 1-3-4, and a screen c; 1-3-5, a partition board b; 1-4, a partition plate a; 1-5, a material storage box; 1-6, spring b; 1-7, supporting blocks; 1-8, a vibration generator; 1-9, a box door c; 2. a coarse screening device; 2-1, a shell a; 2-2, an elastic telescopic rod; 2-3, moving the plate; 2-4, a motor; 2-5, an eccentric wheel; 2-6, a pull rod; 2-7, minor axis; 2-8, a feeding pipe; 2-9, moving groove; 2-10 parts of a buffer plate; 2-11, spring a; 2-12, connecting rod; 2-13, screening the box; 2-14, a box door b; 2-15, screening plate a; 2-16, a box door a; 3. a hydraulic cylinder; 3-1, a hydraulic rod; 3-2, a bidirectional cylinder; 3-3, an air control telescopic rod; 3-4, cleaning a plate; 3-5, cleaning the hairbrush; 3-6 and a discharge hole b.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Referring to fig. 1-3, a multistage vibrating screen for furfural production comprises a fine screening device 1, a coarse screening device 2 is arranged above the fine screening device 1, the coarse screening device 2 comprises a shell a2-1, a screening box 2-13 is arranged in the shell a2-1, the bottom end of the screening box 2-13 is fixedly connected with a screening plate a2-15, the upper end of the screening box 2-13 is provided with a moving plate 2-3, the inner wall of the top end of the shell a2-1 is fixedly connected with a motor 2-4 through a fixing frame, the motor 2-4 is fixedly connected with an eccentric wheel 2-5 through a rotating shaft, the eccentric wheel 2-5 is connected with a pull rod 2-6 through a short shaft 2-7, the lower end of the pull rod 2-6 is fixedly connected with the top end of the moving plate 2-3, the bottom end of the moving plate 2-3 is fixedly connected with the top end of the screening box 2-13 through a connecting rod 2-12, the motor 2-4 can drive the eccentric wheel 2-5 to rotate through a rotating shaft, the eccentric wheel 2-5 can pull the moving plate 2-3 to move up and down through the short shaft 2-7 and the pull rod 2-6, the moving plate 2-3 can pull the screening box 2-13 to move up and down through the connecting rod 2-12, so that the fallen corn cobs can be screened in a vibration mode, the outer wall of the top end of the shell a2-1 is fixedly connected with the feeding pipe 2-8, the lower end of the feeding pipe 2-8 penetrates through the moving plate 2-3 and is arranged above the screening box 2-13, the moving plate 2-3 is provided with a through hole at the joint with the feeding pipe 2-8, the moving plate 2-3 can move up and down at the outer wall of the feeding pipe 2-8 through the through hole, and the through hole is arranged to prevent the moving plate 2-3 from touching the feeding pipe 2-8 when moving up and down, the two sides of the outer wall of the top end of the moving plate 2-3 are fixedly connected with the elastic telescopic rods 2-2, the other end of the elastic telescopic rods 2-2 is fixedly connected with the inner wall of the top end of the shell a2-1, the inner wall of the two side ends of the shell a2-1 is provided with a moving groove 2-9 at the joint with the moving plate 2-3, the moving plate 2-3 can move in the moving groove 2-9, the inner walls of the upper end and the lower end of the moving groove 2-9 are provided with buffer plates 2-10, the buffer plates 2-10 and the inner wall of the upper end and the lower end of the moving groove 2-9 are fixedly connected with a spring a2-11, the arranged buffer plates 2-10 and the spring a2-11 can be matched with the elastic telescopic rods 2-2 to reduce the vibration generated by the moving plate 2-3 during moving, and prevent the moving plate 2-3 from damaging screened parts due to large vibration, flow guide blocks are fixed at two side ends of the inner wall of the bottom end of the shell a2-1, and a discharge hole a is formed in the outer wall of the bottom end of the shell a 2-1.
Referring to fig. 4-5, the fine screening device 1 includes a housing b1-1, a screening plate b1-3 is disposed in the housing b1-1, the bottom end of the screening plate b1-3 is fixedly connected with two partition plates a1-4, the number of the partition plates a1-4 is two, a material storage tank 1-5 is disposed below the screening plate b1-3, one partition plate is disposed below each screen of the material storage tank 1-5, the partition plate a1-4 is disposed to prevent screened corncobs from mixing together, the outer wall of the top end of the housing b1-1 is fixedly connected with a hydraulic cylinder 3, the bottom end of the hydraulic cylinder 3-1 is fixedly connected with a hydraulic rod 3-1, the bottom end of the hydraulic rod 3-1 is fixedly connected with a bidirectional cylinder 3-2, both side ends of the bidirectional cylinder 3-2 are fixedly connected with pneumatic control telescopic rods 3-3, the other end of the pneumatic control telescopic rods 3-3 is fixedly connected with a cleaning plate 3-4, the bottom ends of the cleaning plates 3-4 are fixedly connected with cleaning brushes 3-5, a hydraulic cylinder 3 and a hydraulic rod 3-1 are arranged to enable the cleaning plates 3-4 to move upwards when in use and prevent the cleaning plates from influencing the corn cob screening of the screening plate b1-3, when the screening plate b1-3 is blocked, the hydraulic cylinder 3 can control the hydraulic rod 3-1 to enable a bidirectional cylinder 3-2 to move downwards, the bidirectional cylinder 3-2 can enable the cleaning plates 3-4 and the cleaning brushes 3-5 to clean the upper end face of the screening plate b1-3 through a pneumatic control telescopic rod 3-3, the screening fixing frame b1-3 comprises 1-3-1, a screen mesh a1-3-2, a screen mesh b1-3-3 and a screen mesh c1-3-4 are respectively arranged in the fixing frame 1-3-1, the screens a1-3-2, b 1-3-3-3 and c1-3-4 are separated by partition boards b1-3-5, the number of the partition boards b1-3-5 is two, the mesh diameter of the screen a1-3-2 is larger than that of the screen b1-3-3, the mesh diameter of the screen b1-3-3 is larger than that of the screen c1-3-4, the top end of the partition board a1-4 is fixedly connected with vibration generators 1-8, the upper ends of the vibration generators 1-8 are fixedly connected with the bottom ends of the partition boards b1-3-5, and the vibration generators 1-8 are arranged to enable the partition boards b1-3 to vibrate, so that the screening effect of the partition boards b1-3 on corncobs is improved, the left side end of the outer wall of the top end of the shell b1-1 is provided with a feeding hole, the feeding hole is arranged below the discharging hole a, a material guide plate 1-2 is arranged below the feeding hole, the material guide plate 1-2 is fixedly connected with the inner wall of the top end of the shell b1-1, the outer wall of the right side end of the shell b1-1 is provided with a discharging hole b3-6 at the joint with the sieving plate b1-3, the two sides of the outer wall of the bottom end of the fixed frame 1-3-1 are fixedly connected with a spring b1-6, the lower end of the spring b1-6 is fixedly connected with a supporting block 1-7, the spring b1-6 and the supporting block 1-7 are arranged to enhance the vibration effect of the sieving plate b1-3, the supporting block 1-7 is fixedly connected with the inner wall of the side end of the shell b1-1, the outer wall of the front end of the shell a2-1 is provided with a box door a2-16 in a hinge connection mode, the outer wall of the front end of the screening box 2-13 is provided with a box door b2-14 in a hinge connection mode, the outer wall of the front end of the shell b1-1 is provided with a box door c1-9 in a hinge connection mode, firstly, screened corncobs are conveniently collected, and secondly, workers are convenient to maintain and process the screened corncobs when the screening plate materials are in serious conditions.
The utility model discloses a theory of operation is: firstly, corncobs at the end to be screened are conveyed into a screening box 2-13 through a feeding pipe 2-8, then a motor 2-4 is started, the motor 2-4 can drive an eccentric wheel 2-5 to rotate through a rotating shaft, the eccentric wheel 2-5 can pull a moving plate 2-3 to move up and down through a short shaft 2-7 and a pull rod 2-6, the moving plate 2-3 can pull the screening box 2-13 to move up and down through a connecting rod 2-12, so that the fallen corncobs can be screened in a vibration mode, a buffer plate 2-10 and a spring a2-11 can be matched with an elastic telescopic rod 2-2 to reduce the vibration generated by the moving plate 2-3 during moving, so that the damage to screened parts caused by the vibration generated by the moving plate 2-3 is prevented, the screened corncobs can fall onto a guide plate 1-2 through a discharge port a, the corn cobs are conveyed to the left end of the screening plate b1-3 by the material guide plate 1-2, the screening plate b1-3 can vibrate by the vibration generator 1-8, the diameter of the screen on the screening plate b1-3 is sequentially increased from left to right, the corn cobs can fall into the storage box 1-5 through the screen according to the size of the corn cobs, the corn cobs which are not screened can flow out through the discharge port b3-6, workers can conveniently perform centralized reprocessing on the corn cobs, after screening is performed for a period of time, the workers can clean the corn cobs screened out from the screening box 2-13 by opening the box door a2-16 and the box door b2-14, the screening plate a2-15 can be processed when the screening plate a2-15 is blocked, the workers can clean the corn cobs collected in the storage box 1-5 by opening the sliding door c1-9, when the material clamping condition occurs on the screening plate b1-3, a worker can control the hydraulic rod 3-1 through the hydraulic cylinder 3 to enable the bidirectional cylinder 3-2 to move downwards, the bidirectional cylinder 3-2 can enable the cleaning plate 3-4 and the cleaning brush 3-5 to clean the upper end face of the screening plate b1-3 through the pneumatic control telescopic rod 3-3, and if the cleaning plate 3-4 cannot be cleaned, the box door c1-9 can be opened to manually clean the cleaning plate b.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.