CN218654324U - Granulator is used in chicken powder production with anti-blocking mechanism - Google Patents

Granulator is used in chicken powder production with anti-blocking mechanism Download PDF

Info

Publication number
CN218654324U
CN218654324U CN202221532071.2U CN202221532071U CN218654324U CN 218654324 U CN218654324 U CN 218654324U CN 202221532071 U CN202221532071 U CN 202221532071U CN 218654324 U CN218654324 U CN 218654324U
Authority
CN
China
Prior art keywords
granulator
granulator body
fixedly connected
pipe fitting
powder production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221532071.2U
Other languages
Chinese (zh)
Inventor
范金龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Unitech Biotechnology Co ltd
Original Assignee
Shandong Unitech Biotechnology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Unitech Biotechnology Co ltd filed Critical Shandong Unitech Biotechnology Co ltd
Priority to CN202221532071.2U priority Critical patent/CN218654324U/en
Application granted granted Critical
Publication of CN218654324U publication Critical patent/CN218654324U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Abstract

The embodiment of the application discloses granulator is used in chicken powder production with anti-blocking mechanism, including the granulator body, the feed end of granulator body is installed and is extended the feeding part, and one side at granulator body top fixed mounting respectively has support pipe fitting and lifting unit, and the top and the bottom of supporting the pipe fitting are fixedly connected with polycell material stock part respectively and are provided with drive mechanism. The multiunit material stock part that this application set up, support the pipe fitting, drive mechanism cooperation equipment back, can form the reinforced mechanism of multiunit, feeding part is extended in follow-up cooperation, when the granulator body uses jointly, can be at rotation regulation, add all materials smoothly inside the granulator body, disperse the material when satisfying the granulator body pelletization operation and deposit the material, reduce the pressure between the material, it hardens to reduce the material appearance, the probability of clot, and the reinforced mechanism of multiunit still possesses the reinforced operation branch reinforced and carries out the structural condition of state and anticipated ready state.

Description

Granulator is used in chicken powder production with anti-blocking mechanism
Technical Field
The application relates to the technical field of granulators, and more particularly relates to a granulator for chicken powder production and provided with an anti-blocking mechanism.
Background
The existing granulator mainly comprises a feeding system, a stirring system, a granulating system, a transmission system, a lubricating system and the like, and has the working principle that the required matched powder with the water content of not more than 15 percent enters a feeding auger from a feeding hopper, the proper material flow is obtained by regulating the rotating speed of a stepless speed regulating motor, then the mixed powder enters a stirrer and is stirred by a stirring rod to be mixed with steam for tempering, if molasses or grease is required to be added, the mixed powder is also added from a stirring cylinder to be tempered with the steam, the addition amount of the grease is not more than 3 percent generally, otherwise, the forming is difficult, the temperature of the matched powder can reach 64-85 ℃ after the tempering, and the humidity reaches 14-l 6 percent. Then iron impurities mixed in the powder are removed through the optional iron absorption device through the chute, finally, the mixture enters the pressing chamber for granulation, the granulator is fast in granulation, the effect is good, the granulator is used in pharmacy, chemical industry and food industry, the feeding structure of the existing granulator is generally a cone-shaped hopper structure, the width of the upper part of the hopper structure is narrow, the pressure on the material on the inner side of the bottom of the hopper structure is larger than the pressure on the material on the inner side of the top of the hopper structure in the reciprocating feeding process, the phenomenon is more obvious when the hopper structure is larger, the hardening and clotting of the material on the inner side of the bottom of the hopper are caused, equipment is finally blocked, and the processing efficiency is delayed, so that the granulator for chicken powder production with the anti-blocking mechanism is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the application provides a granulator for chicken powder production with anti-blocking mechanism to improve above-mentioned problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a granulator is used in chicken powder production with anti-blocking mechanism, includes the granulator body, the feed end of granulator body is installed and is extended feeding part, and one side at granulator body top fixed mounting respectively has support pipe fitting and lifting unit, the top of support pipe fitting and bottom respectively fixedly connected with polycell stock component and be provided with drive mechanism, the stirring is all installed to the both sides at lifting unit top and is prevented stifled part.
Optionally, a first extension pipe is arranged inside the extension feeding part, a second extension pipe is clamped to the outer side of the first extension pipe, linkage rods are fixedly connected to the surfaces of two sides of the second extension pipe, a first electric telescopic rod is fixedly connected to the bottom of one end of each linkage rod, the surface of the first electric telescopic rod is fixedly connected to the surface of the top of the granulator body, and the bottom of the first extension pipe is aligned to and fixedly connected with the feeding end of the granulator body.
Optionally, the supporting pipe fitting comprises a hollow supporting rod and a bearing, the inner side of the bearing is fixedly sleeved on the surface of the bottom of the hollow supporting rod, and a supporting rod is fixedly connected between the surface of the bearing and the top surface of the granulator body.
Optionally, the multi-unit material storage component includes four conical hoppers, the four conical hoppers are arranged outside the top of the hollow support rod inside the support pipe fitting in a circumferential array manner, four supports are fixedly connected between the surface of the top of each conical hopper and the surface of the top of the support pipe fitting, the bottom end of one conical hopper is aligned with the first extension pipe, and the inner sides of the bottoms of the four conical hoppers are all clamped with magnetic stoppers.
Optionally, the lifting component comprises an electric push rod, the electric push rod is of a Y-shaped structure, a linkage plate is fixedly sleeved on the inner side of one end of the electric push rod, a connecting seat is fixedly sleeved on the surface of the bottom of the linkage plate, and the connecting seat is fixedly installed on the top of the granulator body through a screw.
Optionally, the transmission mechanism comprises a first gear and a second gear, the first gear and the second gear are meshed with each other and connected, the inner side of the middle portion of the first gear is fixedly sleeved on the surface of the bottom of the hollow support rod inside the support pipe fitting, the bottom surface of the middle portion of the second gear is fixedly connected with a bevel gear box, the input end of one side of the bevel gear box is fixedly connected with a band-type brake component motor, and the bottom of the band-type brake component motor and the bottom of the bevel gear box are fixedly connected to the top surface of the granulator body.
Optionally, the stirring anti-blocking parts comprise transmission shafts, the surfaces of the transmission shafts are fixedly connected with inclined stirring rods, and the top ends of the transmission shafts are fixedly connectedIs connected withIs provided withThe middle parts of the two servo motors are fixedly sleeved with the inner sides of the two ends of the electric push rod respectively, and the two stirring anti-blocking components are movably sleeved inside the two conical hoppers respectively.
The application provides a pair of granulator is used in chicken powder production with anti-blocking mechanism possesses following
Has the advantages that:
1. the multiunit stock part that this application set up, support the pipe fitting, drive mechanism cooperation equipment back, can form the reinforced mechanism of multiunit, feeding part is extended in follow-up cooperation, when the granulator body uses jointly, can be at rotation regulation, add all materials smoothly inside the granulator body, disperse the material when satisfying the granulator body pelletization operation and deposit, reduce the pressure between the material, it hardens to reduce the material appearance, the probability of coagulum, and the reinforced mechanism of multiunit still possesses the reinforced operation branch reinforced and carries out the structural condition of state and expected ready state.
2. The lift part that this application set up, the stirring prevents that the stifled part is mutually supported after, can form two stirring and prevent stifled device, cooperates foretell polycell reinforced mechanism to use the back jointly, can break up the stirring to polycell stock part inside material, further reduces the material and appears hardening, in the probability of clot, realizes reinforced in-process reinforced operation and expects the preparation operation, fully guarantees the pelletization of material loose, reduces the probability of jam.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 shows a schematic front view of the structure of the present application;
FIG. 2 shows a schematic top view of the structure of the present application;
FIG. 3 is a schematic front view of the stirring anti-clogging member of the present application;
FIG. 4 shows a schematic top view of the magnetic stop of the present application;
FIG. 5 is an enlarged schematic view of the point A in FIG. 1 of the present application;
fig. 6 shows an enlarged schematic view at B in fig. 3 of the present application.
In the figure: 1. a granulator body; 2. an elongated feeding member; 21. a first extension pipe; 22. a second extension pipe; 23. a first electric telescopic rod; 3. supporting the pipe; 4. a multi-cell stock component; 41. a conical hopper; 42. a magnetic stopper; 5. a lifting member; 51. an electric push rod; 52. a linkage plate; 6. a transmission mechanism; 61. a first gear; 62. a second gear; 63. a bevel gear box; 64. a brake component motor; 7. Stirring the anti-blocking component; 71. a drive shaft; 72. inclining the stirring rod; 73. a servo motor.
Detailed Description
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 only a part of the embodiments of the present application, and not all of the embodiments. 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.
Referring to fig. 1, fig. 2 and fig. 6, the present invention provides a technical solution: the utility model provides a granulator is used in chicken powder production with anti-blocking mechanism, including granulator body 1, extension feeding part 2 is installed to granulator body 1's feed end, extension feeding part 2 is inside including first extension pipe 21, and the outside joint of first extension pipe 21 has second extension pipe 22, the equal fixedly connected with gangbar in surface of second extension pipe 22 both sides, and the first electric telescopic handle 23 of bottom fixedly connected with of gangbar one end, the surface of first electric telescopic handle 23 is connected with the fixed surface at granulator body 1 top, the bottom of first extension pipe 21 aligns and fixed connection with granulator body 1's feed end, extension feeding part 2 carries out the automation to granulator body 1's feed space and extends, make things convenient for the operation of follow-up other parts.
Referring to fig. 1 and 2, a supporting pipe 3 and a lifting component 5 are respectively and fixedly mounted on one side of the top of a granulator body 1, the supporting pipe 3 is composed of a hollow supporting rod and a bearing, the inner side of the bearing is fixedly sleeved on the surface of the bottom of the hollow supporting rod, a supporting rod is fixedly connected between the surface of the bearing and the top surface of the granulator body 1, the supporting pipe 3 provides a supporting condition for subsequently-arranged components and simultaneously provides a rotating operation condition, the lifting component 5 comprises an electric push rod 51, the electric push rod 51 is of a Y-shaped structure, a linkage plate 52 is fixedly sleeved on the inner side of one end of the electric push rod 51, a connecting seat is fixedly sleeved on the surface of the bottom of the linkage plate 52, the connecting seat is fixedly mounted on the top of the granulator body 1 through screws, and the lifting component 5 provides a reciprocating automatic lifting operation condition for the subsequently-arranged components.
Referring to fig. 1, 2, 4 and 5, the top and bottom of the supporting pipe 3 are respectively and fixedly connected with a multi-unit material storing component 4 and a transmission mechanism 6, the transmission mechanism 6 includes a first gear 61 and a second gear 62, the first gear 61 and the second gear 62 are engaged with each other, the inner side of the middle part of the first gear 61 is fixedly sleeved on the surface of the bottom of the hollow supporting rod inside the supporting pipe 3, the bottom surface of the middle part of the second gear 62 is fixedly connected with a bevel gear box 63, the input end of one side of the bevel gear box 63 is fixedly connected with a band-type brake component motor 64, the bottom of the band-type brake component motor 64 and the bottom of the bevel gear box 63 are both fixedly connected on the top surface of the granulator body 1, the transmission mechanism 6 provides the operating condition of automatic distance rotation for the supporting pipe 3, the automation performance of the device is improved, the multi-unit material storing component 4 includes four conical hoppers 41, the four conical hoppers 41 are arranged on the outer side of the top of the hollow support rod in the supporting pipe fitting 3 in a circumferential array mode, the supports are fixedly connected between the surfaces of the tops of the four conical hoppers 41 and the surface of the top of the supporting pipe fitting 3, the bottom end of one conical hopper 41 is aligned with the first extension pipe 21, the magnetic stop blocks 42 are clamped on the inner sides of the bottoms of the four conical hoppers 41, the multi-unit material storage part 4, the supporting pipe fitting 3 and the transmission mechanism 6 are assembled in a matching mode to form a multi-unit feeding mechanism, when the feeding part 2 and the granulator body 1 are used together in a subsequent matching mode, all materials can be smoothly added into the granulator body 1 through rotation adjustment, the materials are dispersed and stored while the granulation operation of the granulator body 1 is met, the pressure among the materials is reduced, and the probability of hardening and clotting of the materials is reduced, and the multi-unit feeding mechanism also has the structural conditions of dividing the feeding operation into a feeding proceeding state and a predicted preparation state.
Referring to fig. 1 and 3, the stirring anti-blocking parts 7 are installed on both sides of the top of the lifting part 5, each of the two stirring anti-blocking parts 7 includes a transmission shaft 71, an inclined stirring rod 72 is fixedly connected to the surface of the transmission shaft 71, and the top end of the transmission shaft 71 is fixedly connected to the inclined stirring rod 72Is provided withServo motor 73, and the middle part of two servo motor 73 is fixed cup joints with the inboard at electric putter 51 both ends respectively, two stirring prevent stifled part 7 activity cup joint in the inside of two toper hoppers 41 respectively, lifting unit 5, the stirring prevents stifled part 7 and mutually supports the back, can form two stirring and prevent stifled device, cooperate foretell polycell feeding mechanism to use the back jointly, can break up the stirring to polycell stock part 4 inside material, further reduce the material and appear hardening, in the probability of clot, realize reinforced operation and the preparation operation of expecting of carrying out of the reinforced in-process, the bulk of the pelletization of fully guaranteed material, reduce the probability of jam.
In summary, in the granulator for chicken powder production with the anti-blocking mechanism provided by the present application, when in use, materials are uniformly added into the conical hoppers 41 inside the four multi-unit material storage components 4, then the linkage plate 52 inside the lifting component 5 is closed, then the output end of the linkage plate 52 drives the two stirring anti-blocking components 7 to descend and return through the linkage plate 52, so that the two stirring anti-blocking components 7 are respectively sleeved inside the two corresponding conical hoppers 41, then the servo motors 73 inside the two stirring anti-blocking components 7 are started, then the two servo motors 73 respectively drive the transmission shafts 71 and the inclined stirring rods 72 which are respectively connected to perform anti-blocking and square coagulation stirring on the materials inside the two conical hoppers 41, thereby performing anti-blocking and anticipating preparation operations in the feeding process, then the magnetic stoppers 42 which are clamped at the bottoms of the conical hoppers 41 aligned with the top of the extending feeding component 2 are drawn out, then the first electric telescopic rod 23 inside the extending feeding component 2 is immediately started, so that the first electric telescopic rod 23 drives the second extending pipe 22 to move up to be sleeved on the outer sides of the conical hoppers 41, then the conical hoppers 41 are closed, and then the linkage plate 41 drives the second electric telescopic rod 52 to move up through the linkage plate 64, and then the linkage plate 41 to drive the second rotating brake mechanism 4 to move up, and then the linkage plate 41 to close the gap 64, after the linkage plate 41, the linkage plate 41 to perform the linkage plate 52, and return the linkage plate 52, and drive the feeding operation of the second feeding mechanism 4 to perform the feeding operation, and stop operation, and the feeding operation, after the feeding operation, and the feeding operation of the feeding mechanism 4, the rotating second gear 62 is engaged with and drives the first gear 61, so that the supporting pipe 3 and the multi-unit material storage component 4 rotate synchronously, then the conical hopper 41 in a predicted state moves to the top of the extending feeding component 2 and aligns, then the linkage plate 52 inside the lifting component 5 is closed, then the output end of the linkage plate 52 drives the two stirring anti-blocking components 7 to descend and reset through the linkage plate 52, so that the two stirring anti-blocking components 7 are respectively sleeved inside the two corresponding conical hoppers 41, then the servo motors 73 inside the two stirring anti-blocking components 7 are started, then the two servo motors 73 respectively drive the transmission shafts 71 and the inclined stirring rods 72 which are respectively connected to perform anti-blocking and square condensation stirring on the materials inside the two conical hoppers 41, then the magnetic stoppers 42 which are clamped with the bottoms of the conical hoppers 41 aligned with the tops of the extending feeding components 2 are pulled out, then the first electric telescopic rod 23 inside the extending feeding component 2 is immediately started, so that the first electric telescopic rod 23 drives the second extending pipe 22 to move upwards and be sleeved outside the bottoms of the conical hoppers 41 through the linkage rod, the notches are closed, then the conical hoppers 41 are started, and the conical material body 1 can sequentially flow out, and then the conical hopper body can be granulated.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (7)

1. The utility model provides a granulator is used in chicken powder production with anti-blocking mechanism, includes granulator body (1), its characterized in that: extension feeding part (2) are installed to the feed end of granulator body (1), and one side at granulator body (1) top fixed mounting respectively has support pipe fitting (3) and lifting unit (5), the top and the bottom of support pipe fitting (3) are fixedly connected with polycell material stock part (4) respectively and are provided with drive mechanism (6), stirring anti-blocking part (7) are all installed to the both sides at lifting unit (5) top.
2. The granulator for chicken powder production with anti-blocking mechanism according to claim 1, characterized in that: extend feeding part (2) inside including first extension pipe (21), and the outside joint of first extension pipe (21) has second extension pipe (22), the equal fixedly connected with gangbar in surface of second extension pipe (22) both sides, and the first electric telescopic handle (23) of bottom fixedly connected with of gangbar one end, the fixed surface at the surface of first electric telescopic handle (23) and granulator body (1) top is connected, the bottom of first extension pipe (21) aligns and fixed connection with the feed end of granulator body (1).
3. The granulator for chicken powder production with anti-blocking mechanism according to claim 1, characterized in that: the supporting pipe fitting (3) is composed of a hollow supporting rod and a bearing, the inner side of the bearing is fixedly sleeved on the surface of the bottom of the hollow supporting rod, and a supporting rod is fixedly connected between the surface of the bearing and the top surface of the granulator body (1).
4. The granulator for chicken powder production with anti-blocking mechanism according to claim 2 or 3, characterized in that: the multi-unit material storage component (4) comprises four conical hoppers (41), the four conical hoppers (41) are arranged on the outer side of the top of a hollow supporting rod inside the supporting pipe fitting (3) in a circumferential array mode, a support is fixedly connected between the surface of the top of each conical hopper (41) and the surface of the top of the supporting pipe fitting (3), the bottom end of one conical hopper (41) is aligned to the first extension pipe (21), and the magnetic stop blocks (42) are clamped on the inner sides of the bottoms of the conical hoppers (41).
5. The granulator for chicken powder production with anti-blocking mechanism according to claim 1, characterized in that: the lifting component (5) comprises an electric push rod (51), the electric push rod (51) is of a Y-shaped structure, a linkage plate (52) is fixedly sleeved on the inner side of one end of the electric push rod (51), a connecting seat is fixedly sleeved on the surface of the bottom of the linkage plate (52), and the connecting seat is fixedly installed on the top of the granulator body (1) through a screw.
6. The granulator for chicken powder production with an anti-blocking mechanism according to claim 1, characterized in that: drive mechanism (6) are including first gear (61) and second gear (62), and first gear (61) and second gear (62) intermeshing are connected, the inboard fixed surface of cup jointing in the inside cavity bracing piece bottom of support pipe fitting (3) in first gear (61) middle part, bottom surface fixedly connected with bevel gear case (63) in second gear (62) middle part, input fixedly connected with band-type brake part motor (64) of bevel gear case (63) one side, the bottom of band-type brake part motor (64) and the equal fixed connection in the top surface of granulator body (1) in the bottom of bevel gear case (63).
7. The granulator for chicken powder production with anti-blocking mechanism according to claim 2 or 5, characterized in that: two stifled part (7) are all including transmission shaft (71) in the stirring, and the fixed surface of transmission shaft (71) is connected with slope puddler (72), the top fixedly connected with servo motor (73) of transmission shaft (71), and the middle part of two servo motor (73) cup joints with the inboard fixed at electric putter (51) both ends respectively, two stifled part (7) are cup jointed in the inside of two toper hoppers (41) in the stirring activity respectively.
CN202221532071.2U 2022-06-17 2022-06-17 Granulator is used in chicken powder production with anti-blocking mechanism Active CN218654324U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221532071.2U CN218654324U (en) 2022-06-17 2022-06-17 Granulator is used in chicken powder production with anti-blocking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221532071.2U CN218654324U (en) 2022-06-17 2022-06-17 Granulator is used in chicken powder production with anti-blocking mechanism

Publications (1)

Publication Number Publication Date
CN218654324U true CN218654324U (en) 2023-03-21

Family

ID=85534542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221532071.2U Active CN218654324U (en) 2022-06-17 2022-06-17 Granulator is used in chicken powder production with anti-blocking mechanism

Country Status (1)

Country Link
CN (1) CN218654324U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116688847A (en) * 2023-07-11 2023-09-05 连云港泽鑫食品配料有限公司 Food additive modulating equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116688847A (en) * 2023-07-11 2023-09-05 连云港泽鑫食品配料有限公司 Food additive modulating equipment
CN116688847B (en) * 2023-07-11 2024-03-26 连云港泽鑫食品配料有限公司 Food additive modulating equipment

Similar Documents

Publication Publication Date Title
CN218654324U (en) Granulator is used in chicken powder production with anti-blocking mechanism
CN106582369A (en) Feed blending system
CN113828204B (en) Sludge treatment device for hydraulic engineering
CN205323580U (en) Feed mixing machine
CN111135741A (en) Accurate quantity-control mixing device and method for milk powder production
CN219356064U (en) Mixing stirring equipment convenient to ejection of compact
CN218131445U (en) Homogenizing device for processing non-dairy cream with uniform stirring
CN216499127U (en) Feed proportioning bin of flash mixed
CN108297376A (en) A kind of novel extrusion machine and its application method
CN115025664A (en) Stirrer, controller and control method of temperature control type high-speed stirrer
CN211384906U (en) Granulation equipment is used in production of living beings granule
CN210729415U (en) A feeding device for agricultural product production
CN209643765U (en) A kind of granulator of solid beverage
CN220194556U (en) Food stirring device with storage structure
CN220835424U (en) Granulator is used in synthetic material preparation
CN217855567U (en) THS resin automatic mixer
CN211677515U (en) Cheese powder mixing device
CN219815923U (en) High-efficient cooling's caking mixes machine is prevented to baking powder
CN219744630U (en) Animal feed molasses material preparation and adding premixing system
CN215464242U (en) Potassium chloride granule granulator
CN219272816U (en) Raw material mixer for pet cans
CN221230400U (en) High-speed mixing granulating device
CN207411463U (en) Double shaft stirring feed making machine
CN213668738U (en) High-shear material tank stirrer with high stability
CN214026333U (en) High viscosity gypsum mixing arrangement

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant