CN221951834U - Calcium oxide production stone washing unit - Google Patents

Calcium oxide production stone washing unit Download PDF

Info

Publication number
CN221951834U
CN221951834U CN202323447236.3U CN202323447236U CN221951834U CN 221951834 U CN221951834 U CN 221951834U CN 202323447236 U CN202323447236 U CN 202323447236U CN 221951834 U CN221951834 U CN 221951834U
Authority
CN
China
Prior art keywords
machine body
fixedly installed
bottom plate
calcium oxide
discharge port
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
CN202323447236.3U
Other languages
Chinese (zh)
Inventor
赵云伟
高发鑫
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.)
Zouping Shengchang Calcium Industry Co ltd
Original Assignee
Zouping Shengchang Calcium Industry 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 Zouping Shengchang Calcium Industry Co ltd filed Critical Zouping Shengchang Calcium Industry Co ltd
Priority to CN202323447236.3U priority Critical patent/CN221951834U/en
Application granted granted Critical
Publication of CN221951834U publication Critical patent/CN221951834U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The utility model relates to the technical field of ore processing, in particular to a stone flushing device for calcium oxide production, which comprises a machine body and a supporting seat, wherein an upper cover is fixedly arranged at the upper end of the machine body, a feed inlet is formed in the rear surface of the machine body, a conveyor belt is arranged on the inner wall of the machine body, a spraying device is arranged on the upper surface of the inner wall of the machine body, a solution tank is fixedly arranged on one end surface of the machine body, a water pump is arranged on the upper surface of the solution tank, the water pump is connected with a water pipe fixed on the upper surface of the upper cover, a discharge outlet bottom plate is arranged at the front end of the machine body, and a vibrating machine screen device is fixedly arranged on the lower surface of the discharge outlet bottom plate. The spraying device is matched with the solution box for use, the specified cleaning solution is added before use, the spraying device is used for spraying and cleaning stones, and generated sewage and waste materials fall into the waste material collector below the machine body. Through the screening stone of filter screen differentiation, small-size sand stone can be fallen into the stone collector by filter screen vibration screening.

Description

一种氧化钙生产石子冲洗装置A calcium oxide production stone washing device

技术领域Technical Field

本实用新型涉及矿石加工技术领域,尤其涉及一种氧化钙生产石子冲洗装置。The utility model relates to the technical field of ore processing, in particular to a stone washing device for producing calcium oxide.

背景技术Background Art

石灰岩简称灰岩,又称石灰石,是以方解石为主要成分的碳酸盐岩。石灰岩经过工业加工后可以制成石灰等材料,由于石灰岩主要在浅海环境下形成,加工前对表面进行冲洗是非常有必要的,去除开采过程中的污染物附着,减少表面杂质以及提供一个相对干净的工作面。现有技术中对石灰岩清洗结构较为单一,不能适应不同大小石块的清洗加工,存在一定的局限性。Limestone is also called limestone, which is a carbonate rock with calcite as the main component. Limestone can be made into lime and other materials after industrial processing. Since limestone is mainly formed in shallow sea environment, it is very necessary to wash the surface before processing to remove pollutants attached during mining, reduce surface impurities and provide a relatively clean working surface. The existing technology has a relatively simple structure for cleaning limestone, which cannot adapt to the cleaning and processing of stones of different sizes, and has certain limitations.

实用新型内容Utility Model Content

本实用新型的目的是为了解决背景技术中存在的缺点,而提出的一种氧化钙生产石子冲洗装置。The utility model aims to solve the shortcomings in the background technology and proposes a calcium oxide production stone washing device.

为达到以上目的,本实用新型采用的技术方案为:一种氧化钙生产石子冲洗装置,包括机体、支撑座,所述机体的上端固定安装有上盖,所述机体的后表面开设有进料口,所述机体内壁设有传送带,所述机体内壁上表面设有喷淋装置,所述机体一端表面固定安装有溶液箱,所述溶液箱上表面安装有水泵、所述水泵与固定在上盖上表面的水管连接,所述机体的前端设有出料口底板,所述出料口底板的下表面固定安装有振动筛装置。In order to achieve the above purpose, the technical solution adopted by the utility model is: a calcium oxide production stone washing device, including a body and a support seat, an upper cover is fixedly installed on the upper end of the body, a feed port is opened on the rear surface of the body, a conveyor belt is provided on the inner wall of the body, a spray device is provided on the upper surface of the inner wall of the body, a solution tank is fixedly installed on the surface of one end of the body, a water pump is installed on the upper surface of the solution tank, and the water pump is connected to a water pipe fixed on the upper surface of the upper cover, a discharge port bottom plate is provided at the front end of the body, and a vibrating screen device is fixedly installed on the lower surface of the discharge port bottom plate.

优选的,所述喷淋装置包括固定在上盖表面的水管、固定安装在机体内壁上表面的水道、以及开设在水道下表面的若干喷水嘴。Preferably, the spray device includes a water pipe fixed on the surface of the upper cover, a water channel fixedly installed on the upper surface of the inner wall of the machine body, and a plurality of water spray nozzles opened on the lower surface of the water channel.

优选的,所述振动筛装置包括支撑座、固定安装在支撑座上方的四个弹簧、固定安装在弹簧上端的出料口底板,所述出料口底板的底部固定安装有固定台,所述固定台的下端固定套接有振动机。Preferably, the vibrating screen device includes a support seat, four springs fixedly mounted above the support seat, and a discharge port bottom plate fixedly mounted on the upper ends of the springs; a fixed platform is fixedly mounted on the bottom of the discharge port bottom plate, and a vibrating machine is fixedly sleeved on the lower end of the fixed platform.

优选的,所述出料口底板的上表面固定安装有滑坡,所述滑坡的后表面固定安装有滤网。Preferably, a landslide is fixedly mounted on the upper surface of the discharge port bottom plate, and a filter screen is fixedly mounted on the rear surface of the landslide.

优选的,所述机体的一侧开设有观察窗,所述机体的侧表面相对远离处固定安装有第一电机和第二电机,与机体内部的传送带转动连接。Preferably, an observation window is provided on one side of the machine body, and a first motor and a second motor are fixedly installed at relatively distant positions on the side surface of the machine body, and are rotatably connected to a conveyor belt inside the machine body.

优选的,所述机体下端设有废料收集器,所述出料口底板的下端设有石料收集器。Preferably, a waste collector is provided at the lower end of the machine body, and a stone collector is provided at the lower end of the discharge port bottom plate.

与现有技术相比,本实用新型具有以下有益效果:Compared with the prior art, the utility model has the following beneficial effects:

1、本实用新型喷淋装置与溶液箱配合使用,使用前添加指定清洗溶液使用喷淋装置对石料进行喷淋清洗,产生的污水废料落入机体下方的废料收集器。1. The spray device of the utility model is used in conjunction with a solution tank. Before use, a designated cleaning solution is added and the stone is sprayed and cleaned using the spray device. The generated sewage and waste fall into a waste collector under the machine body.

2、本实用新型机体前端设置了振动筛装置,通过滤网的设置使大型石灰岩掉入出料口底板,而小型砂石会被滤网振动筛选掉入石料收集器中。2. A vibrating screen device is arranged at the front end of the machine body of the utility model. The large limestone is dropped into the bottom plate of the discharge port through the setting of the filter screen, while the small sand and gravel are vibrated and screened by the filter screen and dropped into the stone collector.

3、本实用新型中传送带与出料口滤网均为斜面,清洗工序完成后石料由3. The conveyor belt and the filter screen at the outlet of the utility model are both inclined. After the cleaning process is completed, the stone

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本实用新型一种氧化钙生产石子冲洗装置的结构示意图;FIG1 is a schematic structural diagram of a calcium oxide production stone washing device according to the utility model;

图2为本实用新型一种氧化钙生产石子冲洗装置的另一视角结构示意图;FIG2 is a schematic structural diagram of another perspective of a calcium oxide production stone washing device of the utility model;

图3为本实用新型一种氧化钙生产石子冲洗装置的底部视角结构示意图;FIG3 is a schematic diagram of the structure of a calcium oxide production stone washing device from the bottom perspective of the utility model;

图4为本实用新型一种氧化钙生产石子冲洗装置图3中A处放大图;FIG4 is an enlarged view of the A position in FIG3 of a calcium oxide production stone washing device of the utility model;

图5为本实用新型一种氧化钙生产石子冲洗装置背面视角结构示意图;FIG5 is a schematic diagram of the structure of a calcium oxide production stone washing device from the back side of the utility model;

图6为本实用新型一种氧化钙生产石子冲洗装置图5中B处放大图。FIG. 6 is an enlarged view of point B in FIG. 5 of a calcium oxide production stone washing device according to the present invention.

其中:1、机体;2、上盖;3、进料口;4、观察窗;5、支撑座;6、第一电机;7、第二电机;8、水泵;9、水管;10、溶液箱;11、传送带;12、滑坡;13、滤网;14、出料口底板;15、弹簧;16、废料收集器;17、石料收集器;18、振动机;19、固定台;20、喷水嘴;21、水道;22、固定轴。Among them: 1. Machine body; 2. Upper cover; 3. Feed inlet; 4. Observation window; 5. Support seat; 6. First motor; 7. Second motor; 8. Water pump; 9. Water pipe; 10. Solution tank; 11. Conveyor belt; 12. Landslide; 13. Filter; 14. Discharge port bottom plate; 15. Spring; 16. Waste collector; 17. Stone collector; 18. Vibrator; 19. Fixed platform; 20. Water nozzle; 21. Waterway; 22. Fixed shaft.

具体实施方式DETAILED DESCRIPTION

以下描述用于揭露本实用新型以使本领域技术人员能够实现本实用新型。以下描述中的优选实施只作为举例,本领域技术人员可以想到其他显而易见的变型。The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred implementations described below are only examples, and those skilled in the art may think of other obvious variations.

如图1-图6所示一种氧化钙生产石子冲洗装置,包括机体1、支撑座5,机体1的上端固定安装有上盖2、机体1的后表面开设有进料口3,机体1内壁设有传送带11,机体1内壁上表面设有喷淋装置,机体1一端表面固定安装有溶液箱10,溶液箱10上表面安装有水泵8,水泵8与固定在上盖2上表面的水管9连接,机体1的前端设有出料口底板14,出料口底板14的下表面固定安装有振动筛装置。As shown in Figures 1 to 6, a calcium oxide production stone washing device includes a body 1 and a support base 5. An upper cover 2 is fixedly installed on the upper end of the body 1, a feed port 3 is opened on the rear surface of the body 1, a conveyor belt 11 is provided on the inner wall of the body 1, a spray device is provided on the upper surface of the inner wall of the body 1, a solution tank 10 is fixedly installed on the surface of one end of the body 1, a water pump 8 is installed on the upper surface of the solution tank 10, and the water pump 8 is connected to a water pipe 9 fixed on the upper surface of the upper cover 2, a discharge port bottom plate 14 is provided at the front end of the body 1, and a vibrating screen device is fixedly installed on the lower surface of the discharge port bottom plate 14.

喷淋装置包括固定在上盖2表面的水管9、固定安装在机体1内壁上表面的水道21、以及开设在水道21下表面的若干喷水嘴20,石料进入传送带11后开启喷淋装置,水泵8将溶液箱10中的清洗液泵送至水管9,水管9将清洁液送入水道21、由于喷水嘴20采用高压头设计清洁液会以很快的速度冲刷石料表面。The spraying device includes a water pipe 9 fixed on the surface of the upper cover 2, a water channel 21 fixedly installed on the upper surface of the inner wall of the body 1, and a plurality of water nozzles 20 opened on the lower surface of the water channel 21. After the stone enters the conveyor belt 11, the spraying device is turned on, and the water pump 8 pumps the cleaning liquid in the solution tank 10 to the water pipe 9. The water pipe 9 sends the cleaning liquid into the water channel 21. Since the water nozzle 20 adopts a high-pressure head design, the cleaning liquid will flush the surface of the stone at a very fast speed.

振动筛装置包括支撑座5、固定安装在支撑座5上方的四个弹簧15、固定安装在弹簧15上端的出料口底板14,出料口底板14的底部固定安装有固定台19,固定台19的下端固定套接有振动机18,振动机18带动出料口振动筛选清洗完毕的石料,大型石料顺着上坡直接进入出料口,小颗粒则被振动筛选进下方的收集器中。The vibrating screen device includes a support seat 5, four springs 15 fixedly installed on the support seat 5, and a discharge port bottom plate 14 fixedly installed on the upper end of the spring 15. A fixed platform 19 is fixedly installed at the bottom of the discharge port bottom plate 14. A vibrator 18 is fixedly sleeved at the lower end of the fixed platform 19. The vibrator 18 drives the discharge port to vibrate and screen the cleaned stones. Large stones go directly into the discharge port along the uphill slope, and small particles are vibrated and screened into the collector below.

出料口底板14的上表面固定安装有滑坡12,滑坡12的后表面固定安装有滤网13,滤网13用于筛选区分大小型石料。A landslide 12 is fixedly mounted on the upper surface of the discharge port bottom plate 14, and a filter screen 13 is fixedly mounted on the rear surface of the landslide 12. The filter screen 13 is used to screen and distinguish between large and small stones.

机体1的一侧开设有观察窗4,机体1的侧表面相对远离处固定安装有第一电机6和第二电机7,与机体1内部的传送带11转动连接,传送带11输送石料进入出料口部分,振动机18振动筛选石料。An observation window 4 is provided on one side of the machine body 1. A first motor 6 and a second motor 7 are fixedly installed at relatively distant positions on the side surface of the machine body 1, and are rotatably connected to a conveyor belt 11 inside the machine body 1. The conveyor belt 11 transports stones into the discharge port, and a vibrator 18 vibrates to screen the stones.

机体1下端设有废料收集器16,出料口底板14的下端设有石料收集器17,振动筛装置筛选后小型石料颗粒掉入出料口底板14下方的石料收集器17中。A waste collector 16 is provided at the lower end of the machine body 1 , and a stone collector 17 is provided at the lower end of the discharge port bottom plate 14 . After screening by the vibrating screen device, small stone particles fall into the stone collector 17 below the discharge port bottom plate 14 .

使用时操作人员将石料放入进料口3,石料进入机体1中的传送带11上,传送带11由固定在机体1外表面的第一电机6与第二电机7驱动,机体1另一面固定有固定轴22用于配合固定传送带11,水泵8泵送溶液箱10中的清洁液送入固定在机体1上部的水管9中,水管9区分了四个单独的水流通道,清洁液进入水管后9由固定在机体1内壁上表面的喷水嘴20喷射溶液,由于采用高压喷头设计溶液会以很快的速度冲刷石料表面,冲洗过程中产生的废料流入机体1下方的废料收集器中16,冲洗完毕后石料由传送带11向下输送进入出料口部分,滤网13位于传送带11下方用于接住输送的石料,出料口底板14下方固定安装了振动筛装置,振动机18固定在固定台19的下表面,振动机18启动后振动出料口底板14和滤网13,支撑座5上方固定安装了四个弹簧15支撑起出料口底板14,滤网13的前端固定安装在滑坡12后表面,大型石料由于体积大于滤网13孔洞继续向下滑动,小型石料颗粒小于孔洞则掉落在石料收集器17中,可由操作人员后续取出进行处理。During use, the operator puts the stone into the feed port 3, and the stone enters the conveyor belt 11 in the machine body 1. The conveyor belt 11 is driven by the first motor 6 and the second motor 7 fixed on the outer surface of the machine body 1. A fixed shaft 22 is fixed on the other side of the machine body 1 to cooperate with the fixed conveyor belt 11. The water pump 8 pumps the cleaning liquid in the solution tank 10 into the water pipe 9 fixed on the upper part of the machine body 1. The water pipe 9 is divided into four separate water flow channels. After the cleaning liquid enters the water pipe 9, the solution is sprayed by the water nozzle 20 fixed on the upper surface of the inner wall of the machine body 1. Due to the high-pressure nozzle design, the solution will flush the surface of the stone at a very fast speed, and the waste generated during the flushing process will flow into the waste collector 1 below the machine body 1. 6. After flushing, the stone is transported downward by the conveyor belt 11 into the discharge port. The filter screen 13 is located below the conveyor belt 11 to receive the transported stone. A vibrating screen device is fixedly installed below the discharge port bottom plate 14. The vibrator 18 is fixed on the lower surface of the fixed platform 19. After the vibrator 18 is started, the discharge port bottom plate 14 and the filter screen 13 are vibrated. Four springs 15 are fixedly installed above the support seat 5 to support the discharge port bottom plate 14. The front end of the filter screen 13 is fixedly installed on the rear surface of the landslide 12. Large stones continue to slide downward because their volume is larger than the holes of the filter screen 13, and small stone particles smaller than the holes fall into the stone collector 17 and can be taken out by the operator for subsequent processing.

以上显示和描述了本实用新型的基本原理、主要特征和本实用新型的优点。本行业的技术人员应该了解,本实用新型不受上述实施例的限制,上述实施例和说明书中描述的只是本实用新型的原理,在不脱离本实用新型精神和范围的前提下本实用新型还会有各种变化和改进,这些变化和改进都落入要求保护的本实用新型的范围内。本实用新型要求的保护范围由所附的权利要求书及其等同物界定。The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims (6)

1.一种氧化钙生产石子冲洗装置,包括机体(1)、支撑座(5),其特征在于:所述机体(1)的上端固定安装有上盖(2)、所述机体(1)的后表面开设有进料口(3),所述机体(1)内壁设有传送带(11),所述机体(1)内壁上表面设有喷淋装置,所述机体(1)一端表面固定安装有溶液箱(10),所述溶液箱(10)上表面安装有水泵(8),所述水泵(8)与固定在上盖(2)上表面的水管(9)连接,所述机体(1)的前端设有出料口底板(14),所述出料口底板(14)的下表面固定安装有振动筛装置。1. A calcium oxide production stone washing device, comprising a body (1) and a support seat (5), characterized in that: an upper cover (2) is fixedly installed on the upper end of the body (1), a feed port (3) is opened on the rear surface of the body (1), a conveyor belt (11) is provided on the inner wall of the body (1), a spray device is provided on the upper surface of the inner wall of the body (1), a solution tank (10) is fixedly installed on one end surface of the body (1), a water pump (8) is installed on the upper surface of the solution tank (10), and the water pump (8) is connected to a water pipe (9) fixed on the upper surface of the upper cover (2), and a discharge port bottom plate (14) is provided at the front end of the body (1), and a vibrating screen device is fixedly installed on the lower surface of the discharge port bottom plate (14). 2.根据权利要求1所述的一种氧化钙生产石子冲洗装置,其特征在于:所述喷淋装置包括固定在上盖(2)表面的水管(9)、固定安装在机体(1)内壁上表面的水道(21)、以及开设在水道(21)下表面的若干喷水嘴(20)。2. A calcium oxide production stone washing device according to claim 1, characterized in that: the spraying device includes a water pipe (9) fixed on the surface of the upper cover (2), a water channel (21) fixedly installed on the upper surface of the inner wall of the body (1), and a plurality of water nozzles (20) opened on the lower surface of the water channel (21). 3.根据权利要求1所述的一种氧化钙生产石子冲洗装置,其特征在于:所述振动筛装置包括支撑座(5)、固定安装在支撑座(5)上方的四个弹簧(15)、固定安装在弹簧(15)上端的出料口底板(14),所述出料口底板(14)的底部固定安装有固定台(19),所述固定台(19)的下端固定套接有振动机(18)。3. A calcium oxide production stone washing device according to claim 1, characterized in that: the vibrating screen device includes a support seat (5), four springs (15) fixedly installed above the support seat (5), and a discharge port bottom plate (14) fixedly installed on the upper end of the spring (15), and a fixed platform (19) is fixedly installed at the bottom of the discharge port bottom plate (14), and a vibrator (18) is fixedly sleeved at the lower end of the fixed platform (19). 4.根据权利要求3所述的一种氧化钙生产石子冲洗装置,其特征在于:所述出料口底板(14)的上表面固定安装有滑坡(12),所述滑坡(12)的后表面固定安装有滤网(13)。4. A calcium oxide production stone washing device according to claim 3, characterized in that: a landslide (12) is fixedly installed on the upper surface of the discharge port bottom plate (14), and a filter screen (13) is fixedly installed on the rear surface of the landslide (12). 5.根据权利要求1所述的一种氧化钙生产石子冲洗装置,其特征在于:所述机体(1)的一侧开设有观察窗(4),所述机体(1)的侧表面相对远离处固定安装有第一电机(6)和第二电机(7),与机体(1)内部的传送带(11)转动连接。5. A calcium oxide production stone washing device according to claim 1, characterized in that: an observation window (4) is opened on one side of the body (1), and a first motor (6) and a second motor (7) are fixedly installed at relatively distant positions on the side surface of the body (1), and are rotatably connected to a conveyor belt (11) inside the body (1). 6.根据权利要求1所述的一种氧化钙生产石子冲洗装置,其特征在于:所述机体(1)下端设有废料收集器(16),所述出料口底板(14)的下端设有石料收集器(17)。6. A calcium oxide production stone washing device according to claim 1, characterized in that a waste collector (16) is provided at the lower end of the machine body (1), and a stone collector (17) is provided at the lower end of the discharge port bottom plate (14).
CN202323447236.3U 2023-12-15 2023-12-15 Calcium oxide production stone washing unit Active CN221951834U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323447236.3U CN221951834U (en) 2023-12-15 2023-12-15 Calcium oxide production stone washing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323447236.3U CN221951834U (en) 2023-12-15 2023-12-15 Calcium oxide production stone washing unit

Publications (1)

Publication Number Publication Date
CN221951834U true CN221951834U (en) 2024-11-05

Family

ID=93276385

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202323447236.3U Active CN221951834U (en) 2023-12-15 2023-12-15 Calcium oxide production stone washing unit

Country Status (1)

Country Link
CN (1) CN221951834U (en)

Similar Documents

Publication Publication Date Title
CN219581197U (en) Pebble belt cleaning device
CN221183949U (en) Water-saving vibrating ore washer
CN112536274A (en) Ore belt cleaning device is used in mineral exploitation
CN219850660U (en) Limestone vibration screening device with crushing structure
CN215142547U (en) Cleaning equipment for ore processing
CN206214938U (en) Sack cleaner
CN210972688U (en) Cement manufacture is with defeated material belt ash removal device
CN209077263U (en) A kind of metallic ore ore cleaning screening plant
CN216459123U (en) An ore crushing and screening device for quartz stone processing
CN217141104U (en) Screening device for concrete raw materials
CN218610428U (en) Building construction grit screening plant
CN109604240A (en) A kind of macleaya cordata blade decontaminating apparatus and method of cleaning
CN212093150U (en) Full-automatic cleaning device for building raw materials
CN213555831U (en) Waste water treatment system for concrete production
CN214440928U (en) Highway engineering road bed road surface construction is with washing stone desilting device
CN224157372U (en) A circular vibrating screen
CN221208428U (en) Environmentally friendly ore washing device
CN212732951U (en) Vibrating type standard vibrating screen machine
CN221453575U (en) Concrete waste recycling device
CN210187399U (en) Light material and mud powder separating device in building rubbish orthopedics
CN2274992Y (en) Vibrating screen automatic cleaning device
CN112122203A (en) Waste water recycling sand washing equipment
CN218049348U (en) Ore washer for producing calcium carbonate
CN216441067U (en) Screening plant for building engineering
CN221869479U (en) Pickling device for activated carbon production

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant